What is grep and how do you use it?
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what is the use of "test" command in unix?
what are processor execution levels and priorities?
Describe the usage and functionality of the command rm –r * in unix?
Explain command to display different lines that are found when compare two files?
How can you copy files or directories?
What is the first character of the output in ls l command?
Explain command to show the space allocation of files?
What is the Unix file system hierarchy?
How do you move a process which is running background to foreground?
What is the use of cut command in unix?
how will you login one server's shell prompt to an another server?
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fork in unix ?