fix compatible for sh

2016-04-16 19:38:11 +08:00
parent 6f93064114
commit eac18b1c99
1 changed files with 5 additions and 1 deletions
@@ -62,7 +62,11 @@ _exists() {
    _err "Usage: _exists cmd"
    return 1
  fi
-  command -v $cmd >/dev/null 2>&1
+  if type command >/dev/null 2>&1 ; then
+    command -v $cmd >/dev/null 2>&1
+  else
+    type $cmd >/dev/null 2>&1
+  fi
  ret="$?"
  _debug2 "$cmd exists=$ret"
  return $ret