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sed - with escape character

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# 1  
Old 07-10-2012
sed - with escape character
i have string as below

Code:
str=".<date>"

in which i need to replace < with /< , when i tried with sed , got the output.

Code:
--> echo $str | sed 's/</\\</g' 
.\<date>

when i tried to assign it to a variable , i am not getting the same

Code:
--> a=`echo $str | sed 's/</\\</g'` ; echo $a
.<date>

can you guys help me out , i m hitting Smilie..

thanks in advance
Last edited by Scrutinizer; 07-10-2012 at 06:01 AM.. Reason: code tags
# 2  
Old 07-10-2012
Try:
Code:
echo "$a"

# 3  
Old 07-10-2012
tried it, but thats not working. even with IFS="" , its failing . Smilie
# 4  
Old 07-10-2012
It is because of the back ticks. Try:
Code:
a=$(echo "$str" | sed 's/</\\</g')
echo "$a"

or
Code:
a="${str%%<*}\\<${str#*<}"

or (bash/ksh93)
Code:
a=${str/</\\<}


--
with back ticks:
Code:
a=`echo "$str" | sed 's/</\\\</g'`

This is one of the reasons I avoid back ticks..
Last edited by Scrutinizer; 07-10-2012 at 06:39 AM..
This User Gave Thanks to Scrutinizer For This Post:
expert
# 5  
Old 07-10-2012
got it .. thanksSmilie
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