How do I add text to the beginning of a file with a new line

Asked Jan 25 '17 at 02:44

Active Jan 25 '17 at 08:06

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How do I add a new empty line to the beginning of a file under MacOS and Linux?

I have tried the below command and it produces a new line character under MacOS

sed -i.bak '1s/^/TESTe\n/' test.py

edited Jan 25 '17 at 08:06

Zumo de Vidrio

asked Jan 25 '17 at 02:44

user977828

can you show what output you got? and what is expected output? – user13107 Jan 25 '17 at 04:20
2

I'm not familiar with osx, but I'd suggest you use the i (insert) command rather than the s (substitute) command - that way, you should be able to avoid the need to specify an explicit line termination – steeldriver Jan 25 '17 at 04:27
cp test.py test.py.bak && (echo TESTe; cat test.py.bak) >test.py – Satō Katsura Jan 25 '17 at 07:15
A Linux solution is sed -e '1s/^/\n/' filename – Zumo de Vidrio Jan 25 '17 at 07:55

0 Answers0