How do you grep recursively?
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why unix operating system provides more security than other operating systems?
what is the use of ls -l command & what is the information it gives about user ?
What's a command word?
What is the use of awk command in unix?
distinguish between physical addresses and logical address?
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what is exact definition of operating system?
How do I use grep to find a file?
which command is used to change group?
What is the use of the tee command?
Assume that a file’s permissions give you read and write access. What operations can you perform on the file if it is in a directory which has “r”(read) only process? What operations can you perform on the file if it is in a directory which has “x”(execute) only access?
What is ‘ps’ command for?
Will rm -r* removes hidden files?