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extract digits from a string in unix

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# 1  
Old 08-03-2010
extract digits from a string in unix
Hi all,

i have such string stored in a variable

var1 = 00000120

i want the o/p

var1 = 120

is it possible to have such o/p in ksh/bash ...

thanx in advance for the help

sonu
# 2  
Old 08-03-2010
Code:
var1=0000120
echo $var1 | sed 's/^0\+//g'

# 3  
Old 08-03-2010
Quote:
echo "0000000120" | awk '{print $1 + 0}'
# 4  
Old 08-03-2010
Quote:
Originally Posted by pravin27
Code:
var1=0000120
echo $var1 | sed 's/^0\+//g'

The extended metacharacter "+" is not portable with all sed versions.

Regards
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