Add grep command

Grep and count number of empty lines
2024-12-23 00:36:35 +00:00 · 2019-05-09 00:00:37 +08:00 · 2019-05-09 00:00:37 +08:00 · 1f17f61bb2
commit 1f17f61bb2
parent aa8663ed6d
1 changed files with 4 additions and 0 deletions
--- a/README.md
+++ b/README.md
@ -99,6 +99,10 @@ egrep = grep -E # Extended Regular Expression (ERE)
 pgrep = grep -P # Perl Compatible Regular Expressions (PCRE)
 rgrep = grep -r # recursive
 ```
+#####  Grep and count number of empty lines
+```bash
+grep -c "^$"
+```

 #####  Grep and return only integer
 ```bash