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UGU: Unix Guru Universe - Unix Tip #4337- January 25, 2025
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Unix Tip #4337- January 25, 2025
DELETING BLANK LINES USING GREP
For thos who are not familiar with
awk, but still want a quick and easy
way of removing blank lines from a
flat ascii file, remember that the
use of 'cat' in conjuction with
'grep' is just as effective.
cat file1 | grep -v '^$' >file2
mv -f file2 file1
This tip generously supported by: dave_tomkins@tands.co.uk
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
4336
- LIMIT THE SIZE OF DATA AREA
4335
- PROBE-SCSI-ALL and IOSTAT
4334
- VI COPY FILE TO FILE
4333
- SEARCH SEVERAL FILES
4332
- ARITHMETIC COMPARISON
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