need last three characters of the string

if this is SQL use the following:

right(stringname,3)

HRL ,
perhaps I should have been clear
unix shell scripting bash

Assuming you have this list in sample.text...

sed 's/.*\(...\)$/\1/' sample.txt

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mgh-mgharish

can I do something like this

version = $file_name | sed 's/\(.*\).../\1/'

then use version in some other

where $file_name is various file names

Try this:

export version=`echo $file_name | sed 's/\(.*\)...$/\1/'`
echo $version

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mgh_mgharish
thanks that worked

#!/bin/bash
string=somefilename1.xyz112
echo ${string: -3}

ozo, will that work if string has multiple lines?

string='somefilename1.xyz112
somefilename2.abc121'
echo ${string: -3}

That gives only 121, not 112

112 are not the last three characters of the  string

:-)

Just wanted to know if that was possible.. The question requested for last three characters for each line..

I thought it was
"need last three characters of the  string"

file_name='somefilename1.xyz112
somefilename2.abc121'
export version=`echo $file_name | sed 's/.*\(...\)$/\1/'`
echo $version
also gives only 121

What does echo $file_name give you? It shows only one line with your code.. Asker had multiple lines in that variable

export version=`echo "$file_name" | sed 's/.*\(...\)$/\1/'`
echo $version
gives
112 121

but the asker did not specify any variables
the asker did say "I have series of of file names"
which might be a series of variables
the asker also said "I need to get last three characters(112 or 121  or 131 etc"
112 or 121 is not the same as "112 121"

In the original post, he posted two lines..