Linux Ask!

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Jan 072009

Remove empty lines in a file


Pick any one of the following methods.

1. grep

grep . test.txt

2. sed

sed '/^$/d' test.txt

3. awk

awk NF test.txt

4. tr

cat test.txt | tr -s "\n"

5. perl

perl -n -e 'print unless /^$/' test.txt

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