What is know about grep commands?
What is the fastest way to enter a series of commands from the command-line?
How do I search bash history?
What is the command to change from /etc/passwd file to /etc/shadow file?
How do I stop a linux job?
What is command grouping?
Explain grep command.
what is user mode & kernel mode?
What is $@ in bash?
What does history command do in linux?
Explain about kernel file in linux?
What are the options of wc command?
what is soft mount and hard mount? i have to make permanent nfs mount permanent what shall i do?