How to grep ignore case in linux/unix

In linux/unix, we can use the grep -i option to ignore case matching search keywords. grep ignore case syntax: grep -i "keyword" file...

linux view apache logs

In Linux, apache logs (error logs and access logs) provide useful information for system administrators to solve and locate problems....

Linux log view using linux command line

Linux log view using linux command line, tail -f: added log content for real-time monitoring, cat: view all log content, more: view log content by...

awk OFS field separator with examples

Awk OFS field separator variable, output field separator. It is a pair with the Awk FS variable; awk FS separates strings as fields, and awk...

awk FS field separate with examples

awk separate string, you can use awk FS variable or awk -F option to support single delimiter and multiple delimiter regular matching....