Co robi ANACRON użycie. Konsola periodically. By default, anacron reads a list of jobs from a.

Czy przydatne?

Polecenie anacron

Wykonanie, użycie: System administration command. Normally started in a system startup file. Execute commands periodically. By default, anacron reads a list of jobs from a configuration file, /etc/anacrontab. The file consists of shell variables to use when running commands, followed by a list of tasks to run. Each task specifies how often in days it should be run, a delay in minutes to wait before running the task, a unique job identifier used to store a timestamp, and the shell command to execute. Timestamps for the last run of each task are stored in the /var/spool/anacron file. For each task, anacron compares the stored timestamp against the current time. If the command has not been executed within the specified frequency, the command is run. Upon completion, anacron records the new date in the timestamp file. Limit anacron to a specified task by providing the task's unique job identifier on the command line.

The anacron command is often used to support the cron daemon on systems that do not run continuously

Opcje wykonania anacron w konsoli

-d

Run in foreground rather than as a background process. Send messages to standard error.

 -f

Run tasks ignoring timestamps.

 -h

Print help message, then exit.

 -n

Run tasks now, ignoring delay specifications.

 -q

Suppress messages to standard error when using the -d option.

 -s

Execute tasks serially. Do not start new task until previous task is completed.

 -t file

Read tasks from file instead of from /etc/anacrontab.

 -u

Update timestamps for tasks, but don't run them.

 -V

Print version number, then exit.

Przykłady anacron działanie w Słownik polecenie A

Przykład ANACRON użycie :
Jak użyć Package Tool , the Debian package management system. A freely available packaging system for software distribution and installation. For detailed information on apt and its commands, see Chapter 5 co znaczy.
Przykład ANACRON użycie :
Jak użyć mixer . For an ncurses interface, use alsamixer . amixer displays or changes the current mixer settings for the current sound card and sound device. To display all mixer settings, use with no flags krzyżówka.
Przykład ANACRON użycie :
Jak użyć manual page descriptions in the whatis database for occurrences of each string and display the result on the standard output. Like whatis , except that it searches for strings instead of words co to jest.
Przykład ANACRON użycie :
Jak użyć configuration settings for sound cards using the ALSA (Advanced Linux Sound Architecture) system. Settings are written to configuration files using the store function and loaded from those files with słownik.
Przykład ANACRON użycie :
Jak użyć a specified time and optional date . The commands are read from standard input or from a file. (See also batch .) End input with EOF. time can be formed either as a numeric hour (with optional czym jest.