Tuesday, October 18, 2011

Q. Usage of ">|"?
Ans.
">|" force redirection, will forcibly overwrite an existing file.

Q. How to delete files , with names beginning with "-", e.g. -immovable.txt ?
Ans.
Use rm -- -immovable.txt

Q. Significance of command "cd -"?
Ans.
"cd -" command changes to the previous working directory, i.e. $OLDPWD

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