In this post “Linux commands for devOps engineer” we will be seeing most widely used Linux commands that every devOps engineer should know. Whether you’re already a devOps engineer or in the path of becoming one, you should have good understanding of Linux commands.
So let’s get started.
date – Shows the current Server date and time
cal – Shows this month calendar
whoami – Show user who is logged in
finger username – Displays the details about the logged in user
uname -a – Displays details about kernel
df – Shows disk usage
du – Shows directory space usage
free – Shows memory
whereis app – List all the location where app is present
which app – Show which app will run, path of the application
cpuinfo – Shows the details about the CPU utilization
meminfo – Shows the memory utilization in System
ls – List Directory or Directory Listing
ls -al – List All Directory formatted with Hidden files.
cd abc – Change directory to abc
mkdir – Make folder or directory
rm file – Remove file
rm -r dir – Remove directory dir
rm -f file – Remove file forecefuly
rm -rf dir – Remove directory forcefuly
cp -fileA fileB – Copy fileA to fileB
mv -fileA fileB – Move or rename fileA to fileB
ln -s file link – create symbolic link “link” to “file”
touch file – Create file
cat file – Displays the content of file
more file – Displays first 10 line of file
tail file – Displays last 10 line of file
chmod XXX – Changing permission of file, 4 – read , 2 – write 1 – execute
chmod 777 – Read, write, execute for all
ping host – Ping host and output result
whois domain – Get info about domain
wget file – Download file
ps – Display process
top – Display top process
kill pid – Kill process with process id
netstat -r -v – Print network information, routing and connection
So these are some of the most useful commands which are widely used by DevOps Engineer. Do let me know in the comment section any queries or questions.
THE NUCLEAR GEEKS 