Replace a value of a parameter in a file from Bash Script

Question

I have this pair in my configuration file:

TheParameter="TheValue"

I am trying to replace the TheValue from a bash script like, with no luck.

sed 's/TheParameter="(.*)"/TheParameter="NewValue"/' /etc/my.conf

Can anyone suggest the correct way?

Kent · Accepted Answer · 2013-05-21 15:52:35Z

2

see this example:

kent$  echo 'TheParameter="TheValue"'|sed 's/\(TheParameter="\).*/\1newValue"/'
TheParameter="newValue"

answered May 21, 2013 at 15:52

Kent

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Kevin · Accepted Answer · 2013-05-21 15:51:36Z

1

sed, by default, uses basic REs, in which () are not special (don't capture or group). You either need to escape them (\(.*\)), use the -E flag (extended REs), or drop them entirely.

answered May 21, 2013 at 15:51

Kevin

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