squeeze

commit 9d8e832ae98ad142e10ee43a258b7215893126d1
parent bb0fb92595dca9bba7ce4e982d9d1975ae18a56c
Author: St John Karp <contact@stjo.hn>
Date:   Thu, 14 Oct 2021 05:10:46 -0400

Fix `ps` command to detect running processes

Fixed a `ps` command that was not portable between different
implementations. By only printing the process command itself and
not any arguments, we make the output more reliable across systems.

Diffstat:
M
squeeze.sh
 | 
2
+-
M
unsqueeze.sh
 | 
2
+-

2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/squeeze.sh b/squeeze.sh
@@ -105,7 +105,7 @@ wait
 # The `wait` command doesn't seem to wait for all the running jobs.
 # Maybe it's stopping after all `swipl` processes complete?
 # This hack just checks to see if any sed or smartypants processes are running.
-while [ $(ps -A | grep -c -e " sed$" -e " smartypants$") -gt 0 ]; do
+while [ "$(ps -o comm | grep -c -e '^sed$' -e '^smartypants$')" -gt 0 ]; do
 	sleep 1
 done
 
diff --git a/unsqueeze.sh b/unsqueeze.sh
@@ -45,6 +45,6 @@ wait
 # The `wait` command doesn't seem to wait for all the running jobs.
 # Maybe it's stopping after all `swipl` processes complete?
 # This hack just checks to see if any sed processes are running.
-while [ $(ps -A | grep -c " sed$") -gt 0 ]; do
+while [ "$(ps -o comm | grep -c '^sed$')" -gt 0 ]; do
 	sleep 1
 done