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Commands and references ( GNU / linux kernel 2.4.18-3 and 2.4.18-14 )   
Linux is a registered trademark of Linus Torvalds


The commands with their most common usage are in brackets like this: [ command ].
Don't type the brackets, just what is inside of them.

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sort a file

to sort a file named foo with numbers and letters at the beginning of lines, and display the result omitting duplicate entries try this:
[ sort -u foo ]
or send the output to a file named sorted_file1:
[ sort -u foo > sorted_file1 ]



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