script Linux command
The Linux script command is used to record all activities in a terminal session. It captures both input and output, including error messages. This can be useful for troubleshooting, auditing, or training purposes. The recorded session is saved in a file that can be reviewed later. The script command can be invoked with various options to customize the recording behavior. It is a handy tool for tracking changes made during a session and can help in recreating sequences of commands.
script Syntax:
grep [options] [pattern] [file]Options:
| Option | Description |
|---|---|
| -i, —ignore-case | Ignore case distinctions |
| -v, —invert-match | Invert the sense of matching |
| -n, —line-number | Prefix each line with line number |
| -c, —count | Suppress normal output; instead print a count of matching lines |
| -r, —recursive | Read all files under each directory, recursively |
| -w, —word-regexp | Select only those lines containing matches that form whole words |
| -l, —files-with-matches | Suppress normal output; instead print the name of each input file from which output would normally have been printed |
| -h, —no-filename | Suppress the prefixing of filenames on output |
| -q, —quiet | Quiet; do not write anything to standard output. Exit immediately with zero status if any match is found, even if an error was detected |
| -E, —extended-regexp | Interpret pattern as an extended regular expression |
Parameters:
| Parameter | Description |
|---|---|
| pattern | The pattern to search for in the file(s) |
| file | The file or files to search for the pattern in |
script bash Examples:
Record a Shell Session
script session.logStarts recording a shell session and saves the output to a file named “session.log”.
Record a Shell Session with Time Stamps
script -t 2>session_timing.log session.logRecords a shell session with defined timestamps and saves the output to “session.log” while timestamps are saved to “session_timing.log”.
Exit the Script Session
exitStops recording a shell session started with the “script” command.
Append Output to an Existing File
script -a session.logAppends the output of a new shell session to an existing file named “session.log”.
Output to a Custom File
script custom_session.logRecords a shell session and saves the output to a custom file named “custom_session.log”.
Start Script in a New Pseudo-Terminal
script -f session.logStarts recording a shell session in a new pseudo-terminal and saves the output to “session.log”.
script Command Help Center:
How do I use script in Linux?
To use the script command in Linux, execute the following command:
script --option <value>How can I save the output of a script command to a specific file?
To save the output of a script command to a specific file, use the following command:
script -a output.logHow do I include timestamps in the output of a script session?
To include timestamps in the output of a script session, you can use the following command:
script -t 2>output_with_timestamps.logHow can I start a script session with a custom shell?
To start a script session with a custom shell, you can specify it in the command like this:
script -c "bash --norc" output_custom_shell.logHow do I append the output of a script session to an existing file?
To append the output of a script session to an existing file, you can use the following command:
script -a existing_output.logHow can I log the entire script session, including all input and output?
To log the entire script session, including all input and output, you can use the following command:
script -f full_session.logHow do I specify the maximum time for a script session to run?
To specify the maximum time for a script session to run, you can use the following command:
script -c "timeout 10s bash" output_timeout.logHow can I disable the echoing of commands in the output of a script session?
To disable the echoing of commands in the output of a script session, you can use the following command:
script -q output_no_echo.logApplications of the script command
- Recording terminal sessions
- Creating logs of terminal commands and outputs
- Troubleshooting and debugging sessions
- Reproducing and sharing command sequences
- Monitoring and reviewing user interactions with the terminal