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сигналы
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сигналы [2014/05/06 08:46] val [PID] |
сигналы [2021/10/04 09:00] val |
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| ====== Сигналы ====== | ====== Сигналы ====== | ||
| - | [[http://ru.wikipedia.org/wiki/Сигналы_(UNIX)]] | + | * [[https://ru.wikipedia.org/wiki/Сигналы_(UNIX)#Сигналы (UNIX) - Википедия]] |
| - | ===== PID ===== | ||
| <code> | <code> | ||
| - | # ps ax | grep named | grep -v grep | + | # kill -l |
| + | </code> | ||
| + | ===== Определение PID процесса ===== | ||
| + | <code> | ||
| + | # /usr/sbin/sshd | ||
| - | # cat /var/run/named/pid | + | # ps ax | grep ssh | grep -v grep |
| - | или | + | |
| - | # cat /var/run/named/named.pid | + | |
| + | # cat /var/run/sshd.pid | ||
| + | </code> | ||
| + | ===== Отправка сигнала ===== | ||
| + | <code> | ||
| # kill -s <SIGNAL> <PID> | # kill -s <SIGNAL> <PID> | ||
| # kill -<SIGNAL> <PID> | # kill -<SIGNAL> <PID> | ||
| - | # killall -<SIGNAL> named | + | # pkill -<SIGNAL> sshd |
| + | |||
| + | # apt install psmisc | ||
| + | |||
| + | # killall -<SIGNAL> sshd | ||
| </code> | </code> | ||
| ===== TERM ===== | ===== TERM ===== | ||
| + | |||
| + | * чаще всего - остановка процесса | ||
| + | |||
| <code> | <code> | ||
| # kill <PID> | # kill <PID> | ||
| Line 26: | Line 38: | ||
| ===== HUP ===== | ===== HUP ===== | ||
| + | |||
| + | * чаще всего - освободить терминал или перечитать файл конфигурации | ||
| + | |||
| <code> | <code> | ||
| # kill -1 <PID> | # kill -1 <PID> | ||
| Line 31: | Line 46: | ||
| # kill -HUP <PID> | # kill -HUP <PID> | ||
| - | $ nohup find / -name index.html > search.result.txt 2>/dev/null & | + | $ nohup /usr/bin/ssh -N -R 200X:localhost:22 userX@gate.isp.un |
| + | <Ctrl-Z> | ||
| + | bg | ||
| <Ctrl-D> | <Ctrl-D> | ||
| </code> | </code> | ||
| - | ===== INT (Ctrl-C) ===== | + | ===== TSTP <Ctrl-Z> ===== |
| + | |||
| + | * [[https://ru.wikipedia.org/wiki/SIGTSTP]] | ||
| + | |||
| + | <code> | ||
| + | # kill -TSTP <PID> | ||
| + | |||
| + | # jobs | ||
| + | |||
| + | # bg ... | ||
| + | |||
| + | # fg ... | ||
| + | </code> | ||
| + | |||
| + | ===== INT <Ctrl-C> ===== | ||
| <code> | <code> | ||
| # kill -2 <PID> | # kill -2 <PID> | ||
| Line 62: | Line 94: | ||
| # kill -STOP <PID> | # kill -STOP <PID> | ||
| - | Рекомендую испытать, например, на процессе named или ftpd! | + | # pkill -STOP -u student bash |
| - | Идея эксперимента подсказана преподавателем ЦКО “Специалист” Сергеем Борониным:) | + | |
| - | </code> | + | |
| - | + | ||
| - | ===== TSTP (Ctrl-Z) ===== | + | |
| - | + | ||
| - | [[http://ln.com.ua/~openxs/projects/man/uman121.html]] | + | |
| - | <code> | + | |
| - | # kill -TSTP <PID> | + | |
| - | + | ||
| - | # jobs | + | |
| </code> | </code> | ||
| Line 78: | Line 100: | ||
| <code> | <code> | ||
| # kill -CONT <PID> | # kill -CONT <PID> | ||
| + | |||
| + | # pkill -CONT -u student bash | ||
| # fg %JOBID | # fg %JOBID | ||
| Line 86: | Line 110: | ||
| ===== Дополнительные материалы ===== | ===== Дополнительные материалы ===== | ||
| - | [[http://httpd.apache.org/docs/2.2/stopping.html]] | + | * [[http://httpd.apache.org/docs/2.2/stopping.html|Stopping and Restarting Apache]] |
сигналы.txt · Last modified: 2021/10/04 09:01 by val
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