add grep

Grep lines not begin with string (e.g. #)
2024-11-25 22:07:01 +00:00 · 2017-11-29 16:31:10 +08:00 · 2017-11-29 16:31:10 +08:00 · a2702989e6
commit a2702989e6
parent 204c1bdb7a
1 changed files with 6 additions and 0 deletions
--- a/README.md
+++ b/README.md
@ -47,6 +47,12 @@ grep -o '[0-9]*'
 grep -v bbo filename
 ```

+##### Grep lines not begin with string (e.g. #)
+     
+```bash
+grep -v '^#' file.txt
+```
+
 ##### Grep variables with space within it (e.g. bbo="some strings")
     
 ```bash