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SIGTERM, SIGKILLの違い

Linux

Posted at 2024-01-31

sample.sh稼働中

[linuxstudy@xxxx ~]$ ps -el | grep samp
0 S  1000  30327  29828  0  80   0 - 28321 do_wai pts/2    00:00:00 sample.sh
[linuxstudy@xxxx ~]$ kill -SIGTERM 30327
[linuxstudy@xxxx ~]$ ps -el | grep samp      //SIGTERMで消滅

sample.sh一時停止

[linuxstudy@xxxx ~]$ ps -el | grep samp
0 T  1000  30399  29828  0  80   0 - 28321 do_sig pts/2    00:00:00 sample.sh
[linuxstudy@xxxx ~]$ kill -SIGTERM 30399
[linuxstudy@xxxx ~]$ ps -el | grep samp    //SIGTERMでは消滅しない
0 T  1000  30399  29828  0  80   0 - 28321 do_sig pts/2    00:00:00 sample.sh
[linuxstudy@xxxx ~]$ kill -SIGKILL 30399
[linuxstudy@xxxx ~]$ ps -el | grep samp    //SIGKILLにより強制消滅

数字でシグナル指定

[linuxstudy@xxxx ~]$ ps -el | grep samp
0 T  1000  30523  29828  0  80   0 - 28321 do_sig pts/2    00:00:00 sample.sh
[linuxstudy@xxxx ~]$ kill -15 30523
[linuxstudy@xxxx ~]$ ps -el | grep samp   //-15(SIGTERM)で消滅しない
0 T  1000  30523  29828  0  80   0 - 28321 do_sig pts/2    00:00:00 sample.sh
[linuxstudy@xxxx ~]$ kill -9 30523     //-9(SIGKILL)により強制消滅
[linuxstudy@xxxx ~]$ ps -el | grep samp

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