mirror of
https://github.com/notwa/rc
synced 2024-11-05 07:29:04 -08:00
41 lines
1.1 KiB
Bash
Executable file
41 lines
1.1 KiB
Bash
Executable file
#!/usr/bin/env sh
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# YES_ZSH YES_BASH YES_DASH YES_ASH YES_BB_AWK
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# probably not compatible with busybox ps because its column 2 isn't PID.
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running() { ### @- WIP
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local cmd=0 pid=0 col=
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local usage='usage: running {cmd|pid} ...'
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[ $# -gt 0 ] || { printf '%s\n' "$usage" >&2; return 2; }
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for col; do
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case "$col" in
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(cmd) cmd=1;;
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(pid) pid=1;;
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(*) printf '%s\n' "$usage" >&2; return 2;;
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esac
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done
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# ps -o pid,comm=CMD
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# argumentless flags accepted by busybox:
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# a d e f l A T Z
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# argumentless flags accepted by coreutils:
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# a c d e f g h j l m n r s t u v w x A F H L M N P S T V X Z
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ps -f | awk -v cmd=$cmd -v pid=$pid '
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NR==1{
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s=index($0,"COMMAND")
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s=s?s:index($0,"CMD")
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}
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NR>1{
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l=substr($0,s)
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sub(" .*","",l)
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sub(".*[/\\\\]","",l)
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if(pid)printf "%s", $2
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if(cmd&&pid)printf "\t"
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if(cmd)printf "%s", l
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printf "\n"
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}
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'
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}
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[ -n "${preload+-}" ] || running "$@"
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