! HELLO SIR,

1) In UNIX how to hide & unhide a file. What are the Commands are there .
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2) One more thing is that when i using WILD CARDS .The commands are not working Properly. Why like that.

Please help me .

A "hidden" file in UNIX is any file whose name begins with a . (that's a dot or a period). To see the file, use the -a option to the ls command (i.e. ls -a).

What problems are you having with wild cards (also called regular expressions)?

!hello sir,


I create a fine by name mass and i want to hide it.

after the creation of file.

If I got this right you have a file called mass and want to hide it..
Just rename it to mass with an initial dot:

$ mv mass .mass

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