Set lines to print before and after pattern

cheat · Jul 25, 2021 · f94af9b · f94af9b
1 parent 38eab9c
commit f94af9b
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/grep b/grep
@@ -13,6 +13,9 @@ grep -f <pattern-file> <file>
 # Find lines NOT containing pattern:
 grep -v <pattern> <file>
 
+# Set how many lines to show before (-B) and after (-A) pattern:
+grep -B 3 -A 2 <pattern> <file>
+
 # To grep with regular expressions:
 grep "^00" <file>                                               # Match lines starting with 00
 grep -E "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}" <file> # Find IP add