With Sed, awk or tr, how to add a newline after a specific character?

Question

I have this file:

lol.txt:hungrylol2.txt:hungry
lol3.txt:hungry
lol4.txt:hungry
lol5.txt:hungrylol6.txt:hungry

And I would like to turn in into this one:

lol.txt:hungry
lol2.txt:hungry
lol3.txt:hungry
lol4.txt:hungry
lol5.txt:hungry
lol6.txt:hungry

I already investigated with sed, tr and awk but did not find a convienient way to do it.

Thank you

So what's the specific character? _After_ a `y`, or _before_ a `l`? Please clarify by directly updating the question. Showing a failed solution attempt may help. — mklement0, Mar 15 '17 at 12:09

score 2 · Answer 1 · edited Mar 15 '17 at 12:09

2

try:

awk '{gsub(/hungrylol/,"hungry\nlol");print}'   Input_file

I am globally substituting the string hungrylol with hungry then new line and lol and then printing the line of Input_file.

edited Mar 15 '17 at 12:09

mklement0

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answered Mar 15 '17 at 12:08

RavinderSingh13

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score 2 · Accepted Answer · answered Mar 15 '17 at 12:36

2

With sed using BRE:

sed 's/\(hungry\)\(.\)/\1\n\2/' file

When hungry is followed by one character, output it with a new line and the captured character.

answered Mar 15 '17 at 12:36

SLePort

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score 1 · Answer 3 · answered Mar 15 '17 at 12:31

Just add a new line after "hungry" if there was not one:

$ sed -r 's/(hungry)([^\n])/\1\n\2/g' file
lol.txt:hungry
lol2.txt:hungry
lol3.txt:hungry
lol4.txt:hungry
lol5.txt:hungry
lol6.txt:hungry

This matches hungry followed by a character that is not a new line. When this happens, it replaces it by hungry + new line + that captured character.

With Sed, awk or tr, how to add a newline after a specific character?

3 Answers3