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I need help with this command please:
Command to read "Doc1" file and sends it to sort command, after sorting the result will be stored in file called "sorted". If "Doc1" file does not exist, the...

Many thanks.

The first one gives me this error: Invalid expression; you have uesd a binary operator '-o' with nothing before it.

Hi,
How can i find the types of files in some directory(~/mydir) that start with word "fix" then followed by number 3, 4, 7 or 8 and end with .ccp or .in

How can i find the total number of...