Create a quick back-up copy of a file

cp file.txt{,.bak}
Uses shell expansion to create a back-up called file.txt.bak

43
By: root
2009-01-26 12:11:29
cp

6 Alternatives + Submit Alt

What Others Think

Works well in a bash 'for' loop to create a backup of multiple files: for file in *.txt; do cp $file{,.bak}; done;
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Devid · 1 week ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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