Important Linux Commands

Tar , UnTar and UnZip
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tar -zxf 18012005.tar vikrant/
tar -zcf newtitle.tar *.php
unzip myzip.zip

Folder SIZE
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du -skh * | less -- Check the folder size
du -skh *| grep M | less -- Check the folder size which has MB

SCP:
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-->Upload File to Server
# scp config.php username@www.youdomain.com:/home/rootdir/filename.php

-->Download file from server on Currnet directory.
# scp username@www.youdomain.com:/home/rootdir/filename.php .

Fetch (Download files from server)
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#wget http://yuordomain.com .

List Contents of Directory
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ls -l | wc -- (Get Number of Files /Content)
ls -lah -- (Human redable file size)

Check ServerLoad
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w