Replace "/" in a string using shell script

Question

PATH="/dir1/subdir1"

Want to replace "/" with "-" from the above string and the result should be

-dir1-subdir1

Answer 1

You can use tr for that since you want to replace a single character with another one:

echo $PATH | tr "/" "-"

Result is: -dir1-subdir1

Answer 2

In bash you can use a pattern substitution of the form ${parameter//pattern/string} to replace all matches of pattern with string :

echo "${PATH//\//-}"

Note that your pattern string / must be escaped with \\/ .

Answer 3

You can check the more detailed version.

$ var="001244abc"
$ replace="polo"
$ echo ${var//001244/$replace}
poloabc

Hope it helps..