union of two files

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# 1  
diff of two text files

Given two files of the same format (For example number1|text1|number2) what is the command to print lines in file1 which do not occur in file2? diff command seems a bit complicated for me for this purpose. Please help!! Thank you very much.

Last edited by sherkaner; 10-02-2007 at 06:32 PM.. Reason: wrong subject
# 2  
I need it in awk as well as a shell script function.
I am doing it with nested while loops and parsing each line. Thought, there might be a command. Thanks for stopping by anyway.
# 3  

See man comm ... cheers, drl
# 4  

Thank u very much drl. I probably need a manual of all such utilies in unix (solaris). I'll google for a link or so. Thanks!
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