docs: update

2019-09-25 09:55:37 +03:00 · 2019-09-25 09:55:37 +03:00 · 62fadf18d9
commit 62fadf18d9
parent cd0ab04a80
1 changed files with 3 additions and 0 deletions
--- a/3
+++ b/3
@ -133,6 +133,9 @@ get_os() {
            # 'IFS' is set to '<>' to enable splitting between the
            # keys and a second 'read' is used to operate on the
            # next line directly after a match.
+            #
+            # '_' is used to nullify a field. '_ _ line _' basically
+            # says "populate $line with the third field's contents".
            while IFS='<>' read -r _ _ line _; do
                case $line in
                    # To avoid duplicating code, we use the name of