use bash strict mode

2022-12-19 16:39:03 +05:30
parent 8491e54202
commit 0c1f8213fa
1 changed files with 1 additions and 0 deletions
--- a/ch6/ustack
+++ b/ch6/ustack
@@ -1,5 +1,6 @@
 #!/bin/bash
 # ref: http://poormansprofiler.org/
+set -euo pipefail
 name=$(basename $0)
 [ $# -ne 1 ] && {
  echo "Usage: ${name} PID(show-user-stack(s)-of-this-process)"