LinuxQuestions.org - [SOLVED] replace string with empty string of dir path

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replace string with empty string of dir path

Hi, I want to replace a string of directory path in a string to empty:

Code:

dd="test"

STRING="/mnt/sda1/record/$dd/"

j=$(echo "/mnt/sda1/record/test/somefile.test"|sed 's/$STRING//g')

But this doesnt seem to give me the desired thing:

Code:

j=$(echo "/mnt/sda1/record/test/somefile.test"|sed 's/\/mnt\/sda1\/record\/test\///g')

this gives the desired outcome, but its specific, i need a variable in the sed not a string. And if I replace STRING="\/mnt\/sda1\/record\/$dd\/" then I cant use it for something else, cause its has all the weird backslashes now.
Thanks

If the pattern is a variable you have to let the shell substitute it by changing single quotes with double quotes, otherwise the word $STRING is interpreted literally. If the pattern contains slashes, you might use another character as separator in the s command, e.g.

Code:

... | sed "s:$STRING::g"

Also check the basename command, since from your example it provides the required functionality.

Or you could store the path and use parameter substitution:

Code:

dd="test"

STRING="/mnt/sda1/record/$dd/"

path="/mnt/sda1/record/test/somefile.test"



j=${path#$STRING}