从变量末尾删除字符 [英] Remove a character from the end of a variable

问题描述

Bash自动完成功能会在目录名称的末尾附加一个/.如何从位置参数中删除呢?

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(){
  date=`date "+%y%m%d_%H%M%S"`
  PWD=`pwd`
  path=$PWD/$target
  tar czf /tmp/$date$target.tar.gz $path
}

backup

推荐答案

使用

target=${1%/}

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