sed command not working


 
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Old 03-20-2016
sed command not working

Code:
cat bipin.txt
Unix is an OS
Unix has its own commmands
Unix is a user friendly OS
Unix is platform independent
Unix is a time sharing OS
the best OS to learn is Unix
Abinitio uses Unix in backend

this is my file
when i use sed 's/Unix/Linux/' bipin.txt all the occurences are getting replaced , actually if we give the command only the first occurence must be replaced right ??

Could someone please tell me where i am doing the mistake

Moderator's Comments:
Mod Comment Please always use a new thread for a new problem and use code tags and do not double post

Last edited by Scrutinizer; 03-20-2016 at 07:23 AM.. Reason: Posted in its own thread + code tags + double posts
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