What linux shell command returns a part of a string?

Binny V A picture Binny V A · Oct 20, 2008 · Viewed 214.5k times · Source

I want to find a linux command that can return a part of the string. In most programming languages, it's the substr() function. Does bash have any command that can be used for this purpose. I want to be able to do something like this... substr "abcdefg" 2 3 - prints cde.


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Answer

Toybuilder picture Toybuilder · Oct 20, 2008

If you are looking for a shell utility to do something like that, you can use the cut command.

To take your example, try:

echo "abcdefg" | cut -c3-5

which yields

cde

Where -cN-M tells the cut command to return columns N to M, inclusive.