Why is grep called grep?
Can you explain a little bit about command substitution?
What is the search command in unix?
what is tar command and what are the different types of tar commands?
Give a regular expression that finds two things, try to come up with regular expressions that find each individually using "egrep" command?
A file has 1000 lines and i want to display only 1st line how to do it? pls ..tel me
what will this do $cat > file.c ?(file.c is a file in current directory)
How do you copy a directory with many files and folders into another directory?
How do I search for text in vi?
What is the difference between pipe and xargs?
Will rm -r* removes hidden files?
How do you move or rename a file or directory?
What is the different between UNIX command and UNIX shell script?