Set default folder #53

New Issue

Benjamin_Loison · 2025-11-05T20:13:07+01:00

Benjamin_Loison commented

2025-11-05 20:13:07 +01:00

To /sdcard/ or /data/local/tmp/, see #52.

As most times we are not root and it is the equivalent of ~.

Benjamin_Loison/adb/issues/51#issuecomment-4431 may help.

adb shell -T whoami

shell

adb shell -t whoami

shell

adb shell -tt whoami

shell

None hangs.

echo whoami | adb shell

shell

does not hang.

To `/sdcard/` or `/data/local/tmp/`, see #52. As most times we are not `root` and it is the equivalent of `~`. [Benjamin_Loison/adb/issues/51#issuecomment-4431](https://gitea.lemnoslife.com/Benjamin_Loison/adb/issues/51#issuecomment-4431) may help. ``` adb shell -T whoami ``` ``` shell ``` ``` adb shell -t whoami ``` ``` shell ``` ``` adb shell -tt whoami ``` ``` shell ``` None hangs. ``` echo whoami | adb shell ``` ``` shell ``` does not hang.

Benjamin_Loison commented

2025-11-05 20:14:18 +01:00

DuckDuckGo search Linux SSH interactive but execute a command first.

I don't want ~/.bashrc like solutions.

DuckDuckGo search *Linux SSH interactive but execute a command first*. I don't want `~/.bashrc` like solutions.

Benjamin_Loison commented

2025-11-05 20:15:51 +01:00

Shell:

benjamin_loison@benjamin-loison-framework:~$ adb shell
FP4:/ $ bash
shell@FP4 / $ exit
exit
127|FP4:/ $ exit
benjamin_loison@benjamin-loison-framework:~$

I don't want having to exit twice.

<details> <summary>Shell:</summary> ``` benjamin_loison@benjamin-loison-framework:~$ adb shell FP4:/ $ bash shell@FP4 / $ exit exit 127|FP4:/ $ exit benjamin_loison@benjamin-loison-framework:~$ ``` </details> I don't want having to `exit` twice.

Benjamin_Loison commented

2025-11-05 20:29:35 +01:00

adb shell 'bash'

Output:

whoami
shell
whoami
shell

The Stack Overflow answer 48565814:

expect

Output:

Command 'expect' not found, but can be installed with:
sudo apt install expect

interact

interact: command not found

spawn

Output:

Command 'spawn' not found, did you mean:
  command 'spaln' from deb spaln (2.4.13f+dfsg-1)
Try: sudo apt install <deb name>

adb shell pwd

./adb-cmd 'cd /sdcard/'

/usr/bin/env: ‘expect’: No such file or directory

sudo apt install -y expect

Output:

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
  tcl-expect
The following NEW packages will be installed
  expect tcl-expect
0 to upgrade, 2 to newly install, 0 to remove and 7 not to upgrade.
Need to get 247 kB of archives.
After this operation, 538 kB of additional disk space will be used.
Get:1 http://mirrors.ircam.fr/pub/ubuntu/archive noble/universe amd64 tcl-expect amd64 5.45.4-3 [110 kB]
Get:2 http://mirrors.ircam.fr/pub/ubuntu/archive noble/universe amd64 expect amd64 5.45.4-3 [137 kB]
Fetched 247 kB in 0s (622 kB/s)   
Selecting previously unselected package tcl-expect:amd64.
(Reading database ... 952710 files and directories currently installed.)
Preparing to unpack .../tcl-expect_5.45.4-3_amd64.deb ...
Unpacking tcl-expect:amd64 (5.45.4-3) ...
Selecting previously unselected package expect.
Preparing to unpack .../expect_5.45.4-3_amd64.deb ...
Unpacking expect (5.45.4-3) ...
Setting up tcl-expect:amd64 (5.45.4-3) ...
Setting up expect (5.45.4-3) ...
Processing triggers for man-db (2.12.0-4build2) ...
Processing triggers for libc-bin (2.39-0ubuntu8.6) ...

hostname

localhost

./adb-cmd 'hostname'

Output:

spawn adb shell
FP4:/ $ whoami

After a few seconds get the additional output:

hostname
ami
localhost
FP4:/ $ whoami
shell
FP4:/ $

``` adb shell 'bash' ``` <details> <summary>Output:</summary> ``` whoami shell whoami shell ``` </details> [The Stack Overflow answer 48565814](https://stackoverflow.com/a/48565814): ``` expect ``` <details> <summary>Output:</summary> ``` Command 'expect' not found, but can be installed with: sudo apt install expect ``` </details> ``` interact ``` ``` interact: command not found ``` ``` spawn ``` <details> <summary>Output:</summary> ``` Command 'spawn' not found, did you mean: command 'spaln' from deb spaln (2.4.13f+dfsg-1) Try: sudo apt install <deb name> ``` </details> ``` adb shell pwd ``` ``` / ``` ```bash ./adb-cmd 'cd /sdcard/' ``` ``` /usr/bin/env: ‘expect’: No such file or directory ``` ``` sudo apt install -y expect ``` <details> <summary>Output:</summary> ``` Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: tcl-expect The following NEW packages will be installed expect tcl-expect 0 to upgrade, 2 to newly install, 0 to remove and 7 not to upgrade. Need to get 247 kB of archives. After this operation, 538 kB of additional disk space will be used. Get:1 http://mirrors.ircam.fr/pub/ubuntu/archive noble/universe amd64 tcl-expect amd64 5.45.4-3 [110 kB] Get:2 http://mirrors.ircam.fr/pub/ubuntu/archive noble/universe amd64 expect amd64 5.45.4-3 [137 kB] Fetched 247 kB in 0s (622 kB/s) Selecting previously unselected package tcl-expect:amd64. (Reading database ... 952710 files and directories currently installed.) Preparing to unpack .../tcl-expect_5.45.4-3_amd64.deb ... Unpacking tcl-expect:amd64 (5.45.4-3) ... Selecting previously unselected package expect. Preparing to unpack .../expect_5.45.4-3_amd64.deb ... Unpacking expect (5.45.4-3) ... Setting up tcl-expect:amd64 (5.45.4-3) ... Setting up expect (5.45.4-3) ... Processing triggers for man-db (2.12.0-4build2) ... Processing triggers for libc-bin (2.39-0ubuntu8.6) ... ``` </details> ``` hostname ``` ``` localhost ``` ``` ./adb-cmd 'hostname' ``` <details> <summary>Output:</summary> ``` spawn adb shell FP4:/ $ whoami ``` </details> <details> <summary>After a few seconds get the additional output:</summary> ``` hostname ami localhost FP4:/ $ whoami shell FP4:/ $ ``` </details>

Benjamin_Loison commented

2025-11-05 20:31:17 +01:00

man expect

Output:

EXPECT(1)                                               General Commands Manual                                               EXPECT(1)

NAME
       expect - programmed dialogue with interactive programs, Version 5

SYNOPSIS
       expect [ -dDinN ] [ -c cmds ] [ [ -[f|b] ] cmdfile ] [ args ]

INTRODUCTION
       Expect  is  a program that "talks" to other interactive programs according to a script.  Following the script, Expect knows what
       can be expected from a program and what the correct response should be.  An interpreted language provides  branching  and  high-
       level control structures to direct the dialogue.  In addition, the user can take control and interact directly when desired, af‐
       terward returning control to the script.
...
Expect is generalized so that it can be run as a user-level command with any program and task in mind.  Ex‐
       pect can actually talk to several programs at the same time.
...
       expect [[-opts] pat1 body1] ... [-opts] patn [bodyn]
             waits until one of the patterns matches the output of a spawned process, a specified time period has passed, or an end-of-
             file is seen.  If the final body is empty, it may be omitted.

             Patterns from the most recent expect_before command are implicitly used before any other patterns.  Patterns from the most
             recent expect_after command are implicitly used after any other patterns.

             If  the arguments to the entire expect statement require more than one line, all the arguments may be "braced" into one so
             as to avoid terminating each line with a backslash.  In this one case, the usual Tcl substitutions will occur despite  the
             braces.

             If  a  pattern is the keyword eof, the corresponding body is executed upon end-of-file.  If a pattern is the keyword time‐
             out, the corresponding body is executed upon timeout.  If no timeout keyword is used, an implicit null action is  executed
             upon  timeout.   The  default  timeout period is 10 seconds but may be set, for example to 30, by the command "set timeout
             30".  An infinite timeout may be designated by the value -1.  If a pattern is the keyword default, the corresponding  body
             is executed upon either timeout or end-of-file.

             If a pattern matches, then the corresponding body is executed.  expect returns the result of the body (or the empty string
             if no pattern matched).  In the event that multiple patterns match, the one appearing first is used to select a body.

             Each time new output arrives, it is compared to each pattern in the order they are listed.  Thus, you may test for absence
             of  a  match by making the last pattern something guaranteed to appear, such as a prompt.  In situations where there is no
             prompt, you must use timeout (just like you would if you were interacting manually).

             Patterns are specified in three ways.  By default, patterns are specified as with Tcl's string match command.  (Such  pat‐
             terns  are  also  similar to C-shell regular expressions usually referred to as "glob" patterns).  The -gl flag may may be
             used to protect patterns that might otherwise match expect flags from doing so.  Any pattern beginning with a  "-"  should
             be protected this way.  (All strings starting with "-" are reserved for future options.)

             For  example, the following fragment looks for a successful login.  (Note that abort is presumed to be a procedure defined
             elsewhere in the script.)

                 expect {
                     busy               {puts busy\n ; exp_continue}
                     failed             abort
                     "invalid password" abort
                     timeout            abort
                     connected
                 }

             Quotes are necessary on the fourth pattern since it contains a space, which would otherwise separate the pattern from  the
             action.   Patterns with the same action (such as the 3rd and 4th) require listing the actions again.  This can be avoid by
             using regexp-style patterns (see below).  More information on forming glob-style patterns can be found in the Tcl manual.

             Regexp-style patterns follow the syntax defined by Tcl's regexp (short for "regular expression") command.  regexp patterns
             are introduced with the flag -re.  The previous example can be rewritten using a regexp as:

                 expect {
                     busy       {puts busy\n ; exp_continue}
                     -re "failed|invalid password" abort
                     timeout    abort
                     connected
                 }

             Both types of patterns are "unanchored".  This means that patterns do not have to match the entire string, but  can  begin
             and  end the match anywhere in the string (as long as everything else matches).  Use ^ to match the beginning of a string,
             and $ to match the end.  Note that if you do not wait for the end of a string, your responses can easily  end  up  in  the
             middle  of  the string as they are echoed from the spawned process.  While still producing correct results, the output can
             look unnatural.  Thus, use of $ is encouraged if you can exactly describe the characters at the end of a string.

             Note that in many editors, the ^ and $ match the beginning and end of lines respectively. However, because expect  is  not
             line  oriented,  these  characters  match  the beginning and end of the data (as opposed to lines) currently in the expect
             matching buffer.  (Also, see the note below on "system indigestion.")

             The -ex flag causes the pattern to be matched as an "exact" string.  No interpretation of *, ^, etc is made (although  the
             usual Tcl conventions must still be observed).  Exact patterns are always unanchored.

             The  -nocase  flag causes uppercase characters of the output to compare as if they were lowercase characters.  The pattern
             is not affected.

             While reading output, more than 2000 bytes can force earlier bytes to be "forgotten".  This may be changed with the  func‐
             tion  match_max.   (Note that excessively large values can slow down the pattern matcher.)  If patlist is full_buffer, the
             corresponding body is executed if match_max bytes have been received and no other patterns have matched.  Whether  or  not
             the full_buffer keyword is used, the forgotten characters are written to expect_out(buffer).

             If  patlist  is the keyword null, and nulls are allowed (via the remove_nulls command), the corresponding body is executed
             if a single ASCII 0 is matched.  It is not possible to match 0 bytes via glob or regexp patterns.

             Upon matching a pattern (or eof or full_buffer), any matching and previously unmatched output is saved in the variable ex‐
             pect_out(buffer).  Up to 9  regexp  substring  matches  are  saved  in  the  variables  expect_out(1,string)  through  ex‐
             pect_out(9,string).   If  the  -indices flag is used before a pattern, the starting and ending indices (in a form suitable
             for lrange) of the 10 strings are stored in the variables expect_out(X,start) and expect_out(X,end) where X  is  a  digit,
             corresponds  to  the substring position in the buffer.  0 refers to strings which matched the entire pattern and is gener‐
             ated for glob patterns as well as regexp patterns.  For example, if a process has produced output of "abcdefgh\n", the re‐
             sult of:

                 expect "cd"

             is as if the following statements had executed:

                 set expect_out(0,string) cd
                 set expect_out(buffer) abcd

             and "efgh\n" is left in the output buffer.  If a process produced the output "abbbcabkkkka\n", the result of:

                 expect -indices -re "b(b*).*(k+)"

             is as if the following statements had executed:

                 set expect_out(0,start) 1
                 set expect_out(0,end) 10
                 set expect_out(0,string) bbbcabkkkk
                 set expect_out(1,start) 2
                 set expect_out(1,end) 3
                 set expect_out(1,string) bb
                 set expect_out(2,start) 10
                 set expect_out(2,end) 10
                 set expect_out(2,string) k
                 set expect_out(buffer) abbbcabkkkk

             and "a\n" is left in the output buffer.  The pattern "*" (and -re ".*") will flush the output buffer without  reading  any
             more output from the process.

             Normally,  the  matched  output is discarded from Expect's internal buffers.  This may be prevented by prefixing a pattern
             with the -notransfer flag.  This flag is especially useful in experimenting (and can be abbreviated to "-not"  for  conve‐
             nience while experimenting).

             The spawn id associated with the matching output (or eof or full_buffer) is stored in expect_out(spawn_id).

             The  -timeout flag causes the current expect command to use the following value as a timeout instead of using the value of
             the timeout variable.

             By default, patterns are matched against output from the current process, however the -i flag declares the output from the
             named spawn_id list be matched against any following patterns (up to the next -i).  The spawn_id list should either  be  a
             whitespace separated list of spawn_ids or a variable referring to such a list of spawn_ids.

             For  example,  the following example waits for "connected" from the current process, or "busy", "failed" or "invalid pass‐
             word" from the spawn_id named by $proc2.

                 expect {
                     -i $proc2 busy {puts busy\n ; exp_continue}
                     -re "failed|invalid password" abort
                     timeout abort
                     connected
                 }

             The value of the global variable any_spawn_id may be used to match patterns to any spawn_ids that are named with all other
             -i flags in the current expect command.  The spawn_id from a -i flag with no associated pattern  (i.e.,  followed  immedi‐
             ately by another -i) is made available to any other patterns in the same expect command associated with any_spawn_id.

             The  -i  flag may also name a global variable in which case the variable is read for a list of spawn ids.  The variable is
             reread whenever it changes.  This provides a way of changing the I/O source while the command is in execution.  Spawn  ids
             provided this way are called "indirect" spawn ids.

             Actions  such  as  break  and continue cause control structures (i.e., for, proc) to behave in the usual way.  The command
             exp_continue allows expect itself to continue executing rather than returning as it normally would.

             This is useful for avoiding explicit loops or repeated expect statements.  The following example is part of a fragment  to
             automate  rlogin.  The exp_continue avoids having to write a second expect statement (to look for the prompt again) if the
             rlogin prompts for a password.

                 expect {
                     Password: {
                         stty -echo
                         send_user "password (for $user) on $host: "
                         expect_user -re "(.*)\n"
                         send_user "\n"
                         send "$expect_out(1,string)\r"
                         stty echo
                         exp_continue
                     } incorrect {
                         send_user "invalid password or account\n"
                         exit
                     } timeout {
                         send_user "connection to $host timed out\n"
                         exit
                     } eof {
                         send_user \
                             "connection to host failed: $expect_out(buffer)"
                         exit
                     } -re $prompt
                 }

             For example, the following fragment might help a user guide an interaction that is already  totally  automated.   In  this
             case,  the terminal is put into raw mode.  If the user presses "+", a variable is incremented.  If "p" is pressed, several
             returns are sent to the process, perhaps to poke it in some way, and "i" lets the user interact with the  process,  effec‐
             tively  stealing  away control from the script.  In each case, the exp_continue allows the current expect to continue pat‐
             tern matching after executing the current action.

                 stty raw -echo
                 expect_after {
                     -i $user_spawn_id
                     "p" {send "\r\r\r"; exp_continue}
                     "+" {incr foo; exp_continue}
                     "i" {interact; exp_continue}
                     "quit" exit
                 }

             By default, exp_continue resets the timeout timer.  The timer is not restarted, if exp_continue is called with  the  -con‐
             tinue_timer flag.
...

```bash man expect ``` <details> <summary>Output:</summary> ``` EXPECT(1) General Commands Manual EXPECT(1) NAME expect - programmed dialogue with interactive programs, Version 5 SYNOPSIS expect [ -dDinN ] [ -c cmds ] [ [ -[f|b] ] cmdfile ] [ args ] INTRODUCTION Expect is a program that "talks" to other interactive programs according to a script. Following the script, Expect knows what can be expected from a program and what the correct response should be. An interpreted language provides branching and high- level control structures to direct the dialogue. In addition, the user can take control and interact directly when desired, af‐ terward returning control to the script. ... Expect is generalized so that it can be run as a user-level command with any program and task in mind. Ex‐ pect can actually talk to several programs at the same time. ... expect [[-opts] pat1 body1] ... [-opts] patn [bodyn] waits until one of the patterns matches the output of a spawned process, a specified time period has passed, or an end-of- file is seen. If the final body is empty, it may be omitted. Patterns from the most recent expect_before command are implicitly used before any other patterns. Patterns from the most recent expect_after command are implicitly used after any other patterns. If the arguments to the entire expect statement require more than one line, all the arguments may be "braced" into one so as to avoid terminating each line with a backslash. In this one case, the usual Tcl substitutions will occur despite the braces. If a pattern is the keyword eof, the corresponding body is executed upon end-of-file. If a pattern is the keyword time‐ out, the corresponding body is executed upon timeout. If no timeout keyword is used, an implicit null action is executed upon timeout. The default timeout period is 10 seconds but may be set, for example to 30, by the command "set timeout 30". An infinite timeout may be designated by the value -1. If a pattern is the keyword default, the corresponding body is executed upon either timeout or end-of-file. If a pattern matches, then the corresponding body is executed. expect returns the result of the body (or the empty string if no pattern matched). In the event that multiple patterns match, the one appearing first is used to select a body. Each time new output arrives, it is compared to each pattern in the order they are listed. Thus, you may test for absence of a match by making the last pattern something guaranteed to appear, such as a prompt. In situations where there is no prompt, you must use timeout (just like you would if you were interacting manually). Patterns are specified in three ways. By default, patterns are specified as with Tcl's string match command. (Such pat‐ terns are also similar to C-shell regular expressions usually referred to as "glob" patterns). The -gl flag may may be used to protect patterns that might otherwise match expect flags from doing so. Any pattern beginning with a "-" should be protected this way. (All strings starting with "-" are reserved for future options.) For example, the following fragment looks for a successful login. (Note that abort is presumed to be a procedure defined elsewhere in the script.) expect { busy {puts busy\n ; exp_continue} failed abort "invalid password" abort timeout abort connected } Quotes are necessary on the fourth pattern since it contains a space, which would otherwise separate the pattern from the action. Patterns with the same action (such as the 3rd and 4th) require listing the actions again. This can be avoid by using regexp-style patterns (see below). More information on forming glob-style patterns can be found in the Tcl manual. Regexp-style patterns follow the syntax defined by Tcl's regexp (short for "regular expression") command. regexp patterns are introduced with the flag -re. The previous example can be rewritten using a regexp as: expect { busy {puts busy\n ; exp_continue} -re "failed|invalid password" abort timeout abort connected } Both types of patterns are "unanchored". This means that patterns do not have to match the entire string, but can begin and end the match anywhere in the string (as long as everything else matches). Use ^ to match the beginning of a string, and $ to match the end. Note that if you do not wait for the end of a string, your responses can easily end up in the middle of the string as they are echoed from the spawned process. While still producing correct results, the output can look unnatural. Thus, use of $ is encouraged if you can exactly describe the characters at the end of a string. Note that in many editors, the ^ and $ match the beginning and end of lines respectively. However, because expect is not line oriented, these characters match the beginning and end of the data (as opposed to lines) currently in the expect matching buffer. (Also, see the note below on "system indigestion.") The -ex flag causes the pattern to be matched as an "exact" string. No interpretation of *, ^, etc is made (although the usual Tcl conventions must still be observed). Exact patterns are always unanchored. The -nocase flag causes uppercase characters of the output to compare as if they were lowercase characters. The pattern is not affected. While reading output, more than 2000 bytes can force earlier bytes to be "forgotten". This may be changed with the func‐ tion match_max. (Note that excessively large values can slow down the pattern matcher.) If patlist is full_buffer, the corresponding body is executed if match_max bytes have been received and no other patterns have matched. Whether or not the full_buffer keyword is used, the forgotten characters are written to expect_out(buffer). If patlist is the keyword null, and nulls are allowed (via the remove_nulls command), the corresponding body is executed if a single ASCII 0 is matched. It is not possible to match 0 bytes via glob or regexp patterns. Upon matching a pattern (or eof or full_buffer), any matching and previously unmatched output is saved in the variable ex‐ pect_out(buffer). Up to 9 regexp substring matches are saved in the variables expect_out(1,string) through ex‐ pect_out(9,string). If the -indices flag is used before a pattern, the starting and ending indices (in a form suitable for lrange) of the 10 strings are stored in the variables expect_out(X,start) and expect_out(X,end) where X is a digit, corresponds to the substring position in the buffer. 0 refers to strings which matched the entire pattern and is gener‐ ated for glob patterns as well as regexp patterns. For example, if a process has produced output of "abcdefgh\n", the re‐ sult of: expect "cd" is as if the following statements had executed: set expect_out(0,string) cd set expect_out(buffer) abcd and "efgh\n" is left in the output buffer. If a process produced the output "abbbcabkkkka\n", the result of: expect -indices -re "b(b*).*(k+)" is as if the following statements had executed: set expect_out(0,start) 1 set expect_out(0,end) 10 set expect_out(0,string) bbbcabkkkk set expect_out(1,start) 2 set expect_out(1,end) 3 set expect_out(1,string) bb set expect_out(2,start) 10 set expect_out(2,end) 10 set expect_out(2,string) k set expect_out(buffer) abbbcabkkkk and "a\n" is left in the output buffer. The pattern "*" (and -re ".*") will flush the output buffer without reading any more output from the process. Normally, the matched output is discarded from Expect's internal buffers. This may be prevented by prefixing a pattern with the -notransfer flag. This flag is especially useful in experimenting (and can be abbreviated to "-not" for conve‐ nience while experimenting). The spawn id associated with the matching output (or eof or full_buffer) is stored in expect_out(spawn_id). The -timeout flag causes the current expect command to use the following value as a timeout instead of using the value of the timeout variable. By default, patterns are matched against output from the current process, however the -i flag declares the output from the named spawn_id list be matched against any following patterns (up to the next -i). The spawn_id list should either be a whitespace separated list of spawn_ids or a variable referring to such a list of spawn_ids. For example, the following example waits for "connected" from the current process, or "busy", "failed" or "invalid pass‐ word" from the spawn_id named by $proc2. expect { -i $proc2 busy {puts busy\n ; exp_continue} -re "failed|invalid password" abort timeout abort connected } The value of the global variable any_spawn_id may be used to match patterns to any spawn_ids that are named with all other -i flags in the current expect command. The spawn_id from a -i flag with no associated pattern (i.e., followed immedi‐ ately by another -i) is made available to any other patterns in the same expect command associated with any_spawn_id. The -i flag may also name a global variable in which case the variable is read for a list of spawn ids. The variable is reread whenever it changes. This provides a way of changing the I/O source while the command is in execution. Spawn ids provided this way are called "indirect" spawn ids. Actions such as break and continue cause control structures (i.e., for, proc) to behave in the usual way. The command exp_continue allows expect itself to continue executing rather than returning as it normally would. This is useful for avoiding explicit loops or repeated expect statements. The following example is part of a fragment to automate rlogin. The exp_continue avoids having to write a second expect statement (to look for the prompt again) if the rlogin prompts for a password. expect { Password: { stty -echo send_user "password (for $user) on $host: " expect_user -re "(.*)\n" send_user "\n" send "$expect_out(1,string)\r" stty echo exp_continue } incorrect { send_user "invalid password or account\n" exit } timeout { send_user "connection to $host timed out\n" exit } eof { send_user \ "connection to host failed: $expect_out(buffer)" exit } -re $prompt } For example, the following fragment might help a user guide an interaction that is already totally automated. In this case, the terminal is put into raw mode. If the user presses "+", a variable is incremented. If "p" is pressed, several returns are sent to the process, perhaps to poke it in some way, and "i" lets the user interact with the process, effec‐ tively stealing away control from the script. In each case, the exp_continue allows the current expect to continue pat‐ tern matching after executing the current action. stty raw -echo expect_after { -i $user_spawn_id "p" {send "\r\r\r"; exp_continue} "+" {incr foo; exp_continue} "i" {interact; exp_continue} "quit" exit } By default, exp_continue resets the timeout timer. The timer is not restarted, if exp_continue is called with the -con‐ tinue_timer flag. ... ``` </details>

Benjamin_Loison commented

2025-11-05 20:37:43 +01:00

time ./adb-cmd exit

Output:

spawn adb shell
FP4:/ $ exit

real	0m10,107s
user	0m0,013s
sys	0m0,023s

Changing # with $.

time ./adb-cmd 'whoami'

Output:

spawn adb shell
whoami
FP4:/ $

DuckDuckGo and Google search Linux "expect" comment.

Specifying a comment as # seems to work fine.

./adb-cmd 'cd /sdcard/'

Output:

spawn adb shell
cd /sdcard/
FP4:/ $ pwd
/
FP4:/ $

I added the Stack Overflow comment 140838674.

``` time ./adb-cmd exit ``` <details> <summary>Output:</summary> ``` spawn adb shell FP4:/ $ exit real 0m10,107s user 0m0,013s sys 0m0,023s ``` </details> Changing `#` with `$`. ```bash time ./adb-cmd 'whoami' ``` <details> <summary>Output:</summary> ``` spawn adb shell whoami FP4:/ $ ``` </details> DuckDuckGo and Google search `Linux "expect" comment`. Specifying a comment as `#` seems to work fine. ``` ./adb-cmd 'cd /sdcard/' ``` <details> <summary>Output:</summary> ``` spawn adb shell cd /sdcard/ FP4:/ $ pwd / FP4:/ $ ``` </details> I added [the Stack Overflow comment 140838674](https://stackoverflow.com/questions/9383309/how-to-run-an-adb-shell-command-and-remain-in-the-shell#comment140838674_48565814).

Benjamin_Loison commented

2025-11-05 20:38:33 +01:00

stty raw -echo ; ( echo "ls" && cat ) | adb shell ; stty sane

Output:

acct
    adb_keys
            apex
                bin
                   bootstrap-apex
                                 bugreports
                                           cache
                                                config
                                                      d
                                                       data
                                                           data_mirror
                                                                      debug_ramdisk
                                                                                   dev
                                                                                      etc
                                                                                         init
                                                                                             init.environ.rc
                                                                                                            linkerconfig
                                                                                                                        lost+found
                                                                                                                                  metadata
                                                                                                                                          mnt
  odm
     odm_dlkm
             oem
                postinstall
                           proc
                               product
                                      sdcard
                                            second_stage_resources
                                                                  storage
                                                                         sys
                                                                            system
                                                                                  system_dlkm
                                                                                             system_ext
                                                                                                       tmp
                                                                                                          vendor
                                                                                                                vendor_dlkm

I posted the Stack Overflow comment 140838679.

```bash stty raw -echo ; ( echo "ls" && cat ) | adb shell ; stty sane ``` <details> <summary>Output:</summary> ``` acct adb_keys apex bin bootstrap-apex bugreports cache config d data data_mirror debug_ramdisk dev etc init init.environ.rc linkerconfig lost+found metadata mnt odm odm_dlkm oem postinstall proc product sdcard second_stage_resources storage sys system system_dlkm system_ext tmp vendor vendor_dlkm ``` </details> I posted [the Stack Overflow comment 140838679](https://stackoverflow.com/questions/9383309/how-to-run-an-adb-shell-command-and-remain-in-the-shell#comment140838679_37692421).

Benjamin_Loison commented

2025-11-05 20:44:00 +01:00

DuckDuckGo and Google search $ vs # shell, $ vs # shell user vs root and shell prefix user vs root.

The Unix Stack Exchange answer 291733 helps.

DuckDuckGo and Google search *\$ vs # shell*, *\$ vs # shell user vs root* and *shell prefix user vs root*. [The Unix Stack Exchange answer 291733](https://unix.stackexchange.com/a/291733) helps.

Benjamin_Loison commented

2025-11-05 20:45:01 +01:00

stty

Output:

speed 38400 baud; line = 0;
-brkint -imaxbel iutf8

``` stty ``` <details> <summary>Output:</summary> ``` speed 38400 baud; line = 0; -brkint -imaxbel iutf8 ``` </details>

Benjamin_Loison changed title from ~~Set default folder to `/sdcard/`~~ to Set default folder

2025-11-07 21:03:46 +01:00

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Reference: Benjamin_Loison/adb#53