What is the pipe command?
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Name the unix command to find how many days the server has been up.
How do you change your account's password?
what is the use of "test" command in unix?
How can we use grep command in unix?
What is the comma to display different lines that are found when compare two files?
A file has 1000 lines and i want to display only 1st line how to do it? pls ..tel me
Can you explain a little bit about command substitution?
Can you write a command to erase all files in the current directory including all its sub-directories?
what is the difference between relative path and absolute path?
Why is grep called grep?
What is ‘ps’ command for?
what is the significance of "su" command?