Remove a character from the end of a variable

Question

Bash auto completion appends a / at the end of a directory name. How I can strip this off from a positional parameter?

#!/bin/sh

target=$1

function backup()         


        

Answer 1

Use

target=${1%/}

A reference.

Answer 2

Use target=${1%/}

See this the parameter substitution of this bash scripting guide for more.

Answer 3

Be careful, bash3 added perl-similar regex to bash. The guide mentioned covers this as well as the official guide at GNU , but not all references do.

What did I do?

Substitute 2.19/* to be 2.19.

Solution

VER="2.19/foo-bar"
NEWVER=${VER%/*}

Answer 4

I think better solution to canonize paths is realpath $path or with -m option if it doesn't exist. This solution automaticaly removes unnecessary slashes and adds pwd