sed question

Shell Programming and Scripting
1

hi

i have a file with this line:

variable=/export/home/oracle

I want to change the file so that the path is replaced with the value of another variable

var2=/tmp/anything.

how to do this in sed?

thx

2 
sed 's_variable=/export/home/oracle_variable='$var2'_'

Regards

3

I tried this so far (the line after variable= should be replaced with /tmp/anything):

sed -e "/^variable=/s/=.*$/=\/tmp\/anything\//" filename

this works.

But I can't make it when I replace /tmp/anything with $var2

4

Something like this?

 sed 's_\(variable=\).*_\1'$var2'_'
5

sed 's_\(variable=\).*_\1'$A'_' filename

sed: command garbled: s_\(variable=\).*_\1/tmp/anything_

moreover, I prefer to use sed -e since I have several other subsitutions and I want to add this also.

thx