Существует быстрый и простой способ записывать все происходящее в сеансе терминала или консоли. Может использоваться для документирования, контроля и отслеживания действий с последующим анализом. Записываются введённые команды и всё, что выводится в дальнейшем в рамках открытой сессии.
Использование сценария для записи сеанса терминала
Все, что нужно сделать, написать скрипт -a имя файла, чтобы начать запись сеанса:
# script -a session_201907281405
Сценарий запущен, выходной файл — session_201907281405
Посмотреть в реальном времени
# tail -f session_201907281405
Теперь, когда запись началась, все, что вы печатаете, а также все, что возвращается в качестве вывода, будет сохранено в файл с указанным именем.
Для завершения
Нужно быть осторожным, большие файлы будет затратно обрабатывать, а некоторые приложения могут ощутимо заполнить запись сессии.
SCRIPT(1) User Commands SCRIPT(1)
NAME
script - make typescript of terminal session
SYNOPSIS
script [options] [file]
DESCRIPTION
script makes a typescript of everything displayed on your terminal. It is useful for students who
need a hardcopy record of an interactive session as proof of an assignment, as the typescript file
can be printed out later with lpr(1).
If the argument file is given, script saves the dialogue in this file. If no filename is given,
the dialogue is saved in the file typescript.
OPTIONS
-a, --append
Append the output to file or to typescript, retaining the prior contents.
-c, --command command
Run the command rather than an interactive shell. This makes it easy for a script to cap‐
ture the output of a program that behaves differently when its stdout is not a tty.
-e, --return
Return the exit code of the child process. Uses the same format as bash termination on
signal termination exit code is 128+n.
-f, --flush
Flush output after each write. This is nice for telecooperation: one person does `mkfifo
foo; script -f foo', and another can supervise real-time what is being done using `cat
foo'.
--force
Allow the default output destination, i.e. the typescript file, to be a hard or symbolic
link. The command will follow a symbolic link.
-q, --quiet
Be quiet (do not write start and done messages to standard output).
-t[file], --timing[=file]
Output timing data to standard error, or to file when given. This data contains two
fields, separated by a space. The first field indicates how much time elapsed since the
previous output. The second field indicates how many characters were output this time.
This information can be used to replay typescripts with realistic typing and output delays.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
NOTES
The script ends when the forked shell exits (a control-D for the Bourne shell (sh(1)), and exit,
logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)).
Certain interactive commands, such as vi(1), create garbage in the typescript file. script works
best with commands that do not manipulate the screen, the results are meant to emulate a hardcopy
terminal.
It is not recommended to run script in non-interactive shells. The inner shell of script is
always interactive, and this could lead to unexpected results. If you use script in the shell
initialization file, you have to avoid entering an infinite loop. You can use for example the
.profile file, which is read by login shells only:
if test -t 0 ; then
script
exit
fi
You should also avoid use of script in command pipes, as script can read more input than you would
expect.
ENVIRONMENT
The following environment variable is utilized by script:
SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is
not set, the Bourne shell is assumed. (Most shells set this variable automatically).
SEE ALSO
csh(1) (for the history mechanism), scriptreplay(1)
HISTORY
The script command appeared in 3.0BSD.
BUGS
script places everything in the log file, including linefeeds and backspaces. This is not what
the naive user expects.
script is primarily designed for interactive terminal sessions. When stdin is not a terminal (for
example: echo foo | script), then the session can hang, because the interactive shell within the
script session misses EOF and script has no clue when to close the session. See the NOTES section
for more information.
AVAILABILITY
The script command is part of the util-linux package and is available from Linux Kernel Archive
⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.
util-linux June 2014 SCRIPT(1)