plugins/base: `pickfrom()`

2021-09-23 22:52:15 -07:00 · 2021-09-23 22:52:15 -07:00 · c8ed9a9da8
parent c975f31899
commit c8ed9a9da8
1 changed files with 5 additions and 3 deletions
--- a/plugins/available/base.plugin.bash
+++ b/plugins/available/base.plugin.bash
@ -44,9 +44,11 @@ function pickfrom() {
    param '1: filename'
    example '$ pickfrom /usr/share/dict/words'
    group 'base'
-    local file=$1
-    [[ -z "$file" ]] && reference $FUNCNAME && return
-    local -i length="$(wc -l "$file")"
+    local file=${1:-}
+    if [[ ! -r "$file" ]]; then
+		reference "${FUNCNAME[0]}" && return
+	fi
+    local -i length="$(wc -l < "$file")" n=0
    n=$(( RANDOM * length / 32768 + 1 ))
    head -n $n "$file" | tail -1
 }