docs: update

2019-09-19 18:43:16 +03:00
parent 300a0fe11e
commit 968a1bd80f
4 changed files with 23 additions and 2 deletions
--- a/manuscript/chapter5.txt
+++ b/manuscript/chapter5.txt
@@ -9,7 +9,8 @@ Alternative to the `dirname` command.
 ```sh
 dirname() {
    # Usage: dirname "path"
-    dir=${1%%/}
+    dir=${1:-.}
+    dir=${dir%%${dir##*[!/]}}
    [[ "${dir##*/*}" ]] && dir=.
    dir=${dir%/*}