Grep first match

Bash grep only return first match

# Basic syntax:
grep -m 1 "pattern" input_file.txt
# Where -m is the maximum number of matching lines to return, i.e. stop
#	reading the file after m matches
# Note, this is more efficient than piping to head because there you
#	always read the whole file even if you're only looking for m matches

Source: stackoverflow.com

Grep second match

#Combine grep and tail for grepping until second match and filtering 
#last with tail command
grep -m2 "two" in-file.txt | tail -n1

Grep first match

Just combine grep with head command for filtering  only the first match as:
grep "match" | head -n 1   #Change 1 to not only match first but further matches

Similar codes

-1 vote335 views2 answers
When hostname ansible
Shell/Bash
0 vote362 views1 answer
Adobe photoshop on linux ubuntu
Shell/Bash
0 vote345 views1 answer
Ssh-keygen -t rsa
Shell/Bash
5 votes353 views4 answers
Set default terminal ubuntu
Shell/Bash
0 vote369 views1 answer
[Thu Nov 5 15:20:23 2020] Failed to listen on localhost:3200 (reason: Address already in use)
Shell/Bash
1 vote401 views2 answers
A) Write a shell script to list all of the directory files in a directory.
Shell/Bash
2 votes367 views2 answers
Linux run apk
Shell/Bash
1 vote338 views1 answer
Vim maximize window
Shell/Bash
2 votes355 views1 answer
How to git clone into a directory
Shell/Bash
0 vote351 views1 answer
Replace hashes space vi
Shell/Bash