ps.sh: fix ps arguments to work for busybox

tfaughnan · tfaughnan · commit 45aa8feef656 · 2022-09-20T18:30:28.000-04:00
Use the format specifier 'ppid,args' instead of 'ppid command'. POSIX allows either spaces or commas as separators, but busybox only allows commas. Furthermore, 'args' is recognized by POSIX[0] while 'command' is not. On implementations of ps that do recognize 'command', it is simply an alias for 'args', e.g. Debian[1] and FreeBSD[2]. [0]: https://pubs.opengroup.org/onlinepubs/9699919799/utilities/ps.html [1]: https://manpages.debian.org/bullseye/procps/ps.1.en.html [2]: https://www.freebsd.org/cgi/man.cgi?query=ps
diff --git a/save_command_strategies/ps.sh b/save_command_strategies/ps.sh
@@ -11,7 +11,7 @@ exit_safely_if_empty_ppid() {
 }
 
 full_command() {
-	ps -ao "ppid command" |
+	ps -ao "ppid,args" |
 		sed "s/^ *//" |
 		grep "^${PANE_PID}" |
 		cut -d' ' -f2-

Original file line number	Diff line number	Diff line change
`@@ -11,7 +11,7 @@ exit_safely_if_empty_ppid() {`
`11`	`11`	`}`
`12`	`12`
`13`	`13`	`full_command() {`
`14`		`- ps -ao "ppid command" \|`
	`14`	`+ ps -ao "ppid,args" \|`
`15`	`15`	`sed "s/^ *//" \|`
`16`	`16`	`grep "^${PANE_PID}" \|`
`17`	`17`	`cut -d' ' -f2-`