plan9fox/rc/bin/psu
Ori Bernstein 5bc9b0c3ca improve usage messages (thanks henesy)
Fix inconsistencies between programs and their usage
messages,  correct instances where information seems
to be missing or lost. This  includes missing arguments,
making usage consistent with manuals, and so on.
2020-03-10 10:09:34 -07:00

20 lines
380 B
Bash
Executable file

#!/bin/rc
# psu - ps for just one user
rfork e
flags=()
while (! ~ $#* 0 && ~ $1 -*) {
flags = ($flags $1)
shift
}
# sed -n p rather than grep so that we get buffered writes.
# this is a huge difference in drawterm.
switch($#*){
case 0
ps $flags | sed -n '/^'$user' /p'
case 1
ps $flags | sed -n '/^'$1' /p'
case *
echo usage: psu '[ps-flags] [ user ]' >[1=2]
exit usage
}