Linux Cheat Sheet

Linux Cheat Sheet

To find specific string e.g. "127.0.0.2" inside files in current directory print those filenames.

 

find . -type f -exec grep 127.0.0.2 {} \; -print

 

To find and print files modified last 10 minutes in current directory

 

find . -type f -mmin -10

 

To find all files in current directory modified 30 days ago and remove them

find . -type f -mtime +30 -exec rm {} \;

 

To print inodes usage

df -ki

 

To count files inside current directory

ls | wc -l

To check Linux version

uname -a cat /proc/version

To check CentOS/Redhat release

cat /etc/redhat-release cat /etc/centos-release

To find specific keyword within a bz2 file: e.g

bzcat /var/log/abc.log.8.bz2 |grep XYZ | grep 10.48.95 bzcat /var/log/abc.log.8.bz2 |grep XYZ | grep 10.48.95 | sed -e 's/  / /g' | cut -d " " -f 1-3,6-20