psig
Print signal mask.
Requirements
- Linux / Unix (not tested) that has procfs.
- POSIX shell (dash, bash, ksh, zsh, etc.)
tr
,kill
Does not work with WSL1.
Usage
Usage: psig [options]... [<pid> | 0 | -]...
Usage: psig -d
0: current proccess id
-: parent proccess id
no arguments: same as 'psig -'
Options:
-g, --pgroup Specify as a process group id
-s, --session Specify as a session id
-c, --capability Include capability
-d, --decode Decodes the status file read from stdin
-h, --help Display help
Example
$ psig
Name:bash State:S (sleeping) PPID:17480 PID:17481 PGID:17481 SigQ:0/99217
Command: -bash
SigBlk: 17:CHLD
SigIgn: 3:QUIT 20:TSTP 21:TTIN 22:TTOU 34:RTMIN
SigCgt: 1:HUP 2:INT 4:ILL 5:TRAP 6:ABRT 7:BUS 8:FPE 10:USR1 11:SEGV 12:USR2 13:PIPE 14:ALRM 15:TERM 17:CHLD 24:XCPU 25:XFSZ 26:VTALRM 28:WINCH 31:SYS
$ psig 17481 0
Name:bash State:S (sleeping) PPID:17480 PID:17481 PGID:17481 SigQ:0/99217
Command: -bash
SigBlk: 17:CHLD
SigIgn: 3:QUIT 20:TSTP 21:TTIN 22:TTOU 34:RTMIN
SigCgt: 1:HUP 2:INT 4:ILL 5:TRAP 6:ABRT 7:BUS 8:FPE 10:USR1 11:SEGV 12:USR2 13:PIPE 14:ALRM 15:TERM 17:CHLD 24:XCPU 25:XFSZ 26:VTALRM 28:WINCH 31:SYS
Name:psig State:R (running) PPID:17481 PID:18494 PGID:18494 SigQ:0/99217
Command: /bin/sh /home/koichi/bin/psig 17481 0
SigIgn: 34:RTMIN
SigCgt: 2:INT 17:CHLD
$ echo 'SigBlk: 0000000000002000' | psig -d
SigBlk: 14:ALRM
$ psig -d
Press CTRL-D when you have finished entering the data.
SigBlk: 0000000000002000
SigBlk: 14:ALRM