Escape special character


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# 1  
Escape special character

My input is:
Code:
jdbc:Oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.147.109.211)(PORT=1526))(CONNECT_DAT A=(SID= MWDBD22)))

In the search pattern, ( and ) and . and @ are special RE, and need to be escaped \( and \) and \. and \@

how can i do it by script or command

Last edited by Scott; 04-19-2013 at 10:52 AM.. Reason: Please use code tags
# 2  
What are you actually trying to achieve? I can't work it out from what you have written.

SmilieSmilieSmilie


Robin
Liverpool/Blackburn
UK
# 3  
To modify a stream: sed 's/[()@.]/\\&/g'

Regards,
Alister
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# 4  
Thank u....it works fine

---------- Post updated at 07:17 PM ---------- Previous update was at 07:15 PM ----------

Hi Alister,
if i use
Code:
echo $value1 | sed 's/[()@.+/]/\\&/g'

it prints the value.
can u pls tell me how to store it n variable for furthur use?
Regards,
Arindam

Last edited by Scott; 04-19-2013 at 10:52 AM.. Reason: Code tags
# 5  
You can do this using 'command substitution':
Code:
someVar=$(echo $value1 | sed 's/[()@.+/]/\\&/g')

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# 6  
Thank u.
i need one more help.

Code:
perl -pi -e 's/$c/$d/' test.txt

suppose i save the values in c and d variables. test.txt contains $c value.
i want to replace this value with $d value.
if i use this above command,it won't change.
what's the prob?can u pls help me?
# 7  
Perhaps you should use double quotes rather than single quotes. The shell won't evaluate $c or $d if they're encased in single quotes.
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