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I am wanting to use sed to remove all space characters from a text file. At present I am using this:

sed 's/ //' test.txt > test2.txt

This works in the sense that it removes the first space character of each line but leaves the rest. Is there a way to tell sed to repeat for a space characters on a line before moving on to the next or is it a case of scripting multiple run thoughs on the same file? At present the file is small for testing but soon this will be ramped up on to much larger files so minimum rinse and repeat would be great. Any thoughts?

EDIT: At present I get this using the command above: bruteforce
allthe kings men
moneymoney money
ifi was a rich girl

When what I would like is this:

bruteforce
allthekingsmen
moneymoneymoney
ifiwasarichgirl

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1 Answer

up vote 5 down vote accepted

sed 's/ //g' test.txt > test2.txt

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Excellent! What does the g do? Is it a repeat for all instance on a line switch or something? –  Tim Alexander Jul 25 '10 at 10:55
    
Yes, the g flag makes the regex match globally. Without it, it matches only the first one. –  jmz Jul 26 '10 at 8:18
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