Question

I have a config file I need to change (again) and the line is

set wrapper_code=C:\windows\drivers\cache

I need to change it to

set wrapper_code=/home/harry/solo/run

I wrote

cat Proxy.bat | sed -i.bk -e 's/\(^set wrapper_home\=\).*/\/home/'1${dbuser}'/gateway/service\'  Proxy.bat

I get an error message

sed: -e expression #1, char 37: unknown option to `s'

What is wrong with my code string

Answer 1

If you are using / as the pattern separator is sed, you have to escape the slashes in the strings (paths). To avoid it, use a different separator:

sed -i.bk -e 's%\^set wrapper_code=C:\\windows\\drivers\\cache%set wrapper_code=/home/harry/solo/run%'  Proxy.bat

You also have to escape backslashes, as they have a special meaning in sed.

The cat part is useless.