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                 |  | UGU: Unix Guru Universe - Unix Tip #4471- June  8, 2025
 -  Home : Help
 : Today's Tip Unix Tip #4471- June  8, 2025
 
 
ONE STEP AT A TIME WITH !! 
For example using C shell I want
 to edit a handful of files that
 contain the string "ProcessInput"
 in my current directory.
 
 Step 1:
 Find the files which uses "ProcessInput"
 
 % grep "ProcessInput" *.c
 a.c:ProcessInput ( int a )
 b.c:Description : ProcessInput is used to process the input
 given by the user
 b.c:Call ProcessInput to perform ...
 c.c:val = ProcessInput(2) ;
 c.c:val = ProcessInput(3) ;
 
 Step 2:
 Extract the filenames on the left.
 $!! | awk -F: '{print $1}'
 a.c
 b.c
 b.c
 c.c
 c.c
 
 step 3:
 Remove the duplicates
 !! | sort -u
 
 Step 4:
 Now edit it !
 vi `!!`
 
 which runs vi `grep "ProcessInput" *.c | awk -F: '{print $1}'
 |  sort -u`
 
 
 This tip generously supported by: desikann@future.futsoft.com
 
 
 
 NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted
by various unix admins around the globe. UGU suggest you read and
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