r68: jos ispravaka cp_check_and_sed + changelog

[carnet-tools-cn.git] / functions.sh

diff --git a/functions.sh b/functions.sh
index 85e9dd9..520007e 100644 (file)
--- a/functions.sh
+++ b/functions.sh
@@ -191,6 +191,10 @@ cp_backup_conffile() {
 cp_check_and_sed() {
   [ "$CP_SCRIPT_DEBUG" ] && set -vx
   local s sedcmd grepret ret i
+  if [ -z "$3" ]; then
+    echo "Usage: cp_check_and_sed <regexp> <sed> <file> [file ...]" 2>&1 
+    return 1
+  fi
   s="$1"
   shift
   sedcmd="$1"