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UGU: Unix Guru Universe - Unix Tip #4178- July 20, 2012
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Unix Tip #4178- July 20, 2012
EDITING OF LARGE FILES
Ever failed to open a very large
file for editing in vi. Just try
this tip:
Suppose you want to make changes
in top 500 lines of a 100 line file
abc.txt.
tail +500 abc.txt > tail.txt
head -500 abc.txt > head.txt
Edit file head.txt by opening in
a vi editor.
Now append file tail.txt to
head.txt by:
cat tail.txt >> head.txt
mv head.txt > abc.txt
rm head.txt tail.txt
This tip generously supported by: akash@cadence.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
test each tip in a non-volitile environment before placing into
production.
LAST 5 TIPS
4177
- LEAKING MEMORY?
4176
- TRUSS THE PID.....
4175
- VERIFY AFTER VACATIONS
4174
- VERIFY AFTER VACATIONS
4173
- FIND AND EDIT IN ONE
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