Need EOF usage in shell scripting

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# 1  
Old 08-05-2011
Need EOF usage in shell scripting

Hi all,

Can any one explain the usage of EOF in shell scripting??
Gone through some examples from google, but it is not clear...

Examples are:
$ tr [a-z] [A-Z] << EOF
> abcd
> efgh
> iojk

O/P is:

echo << EOF
> Hi
> How are u

No output here Smilie

Please some one explain the usage and purpose of EOF


Last edited by pludi; 08-05-2011 at 03:46 AM..
# 2  
Old 08-05-2011
There is not "usage EOF" in shell programming. It is "here documents". You can read about it in any shell book or a long enough tutorial, for example: Here Documents
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