我创建了一个简单的Bash脚本,它应该在输入的目录路径中的/ usr / local / {etc,lib,include ...}中创建符号链接
#!/bin/sh
input="$1"
for subdir in "etc include bin lib man share sbin"; do
dir=$input/$subdir
if [ -e $dir ] && [ -d $dir ]; then
for file in $dir/*; do
ln -s $file /usr/local/$subdir
done
fi
done
我得到的错误是:
user@comp:/usr/local# ./update-locallinks /usr/local/test/
[: 6: /usr/local/test/etc: unexpected operator
这就是/ usr / local / test /的样子:
user@comp:/usr/local# ls /usr/local/test/
bin
etc
include
lib
答案 0 :(得分:1)
始终使用测试表达式中的双引号保护bash变量:
if [ -e "$dir" ] && [ -d "$dir" ]; then
答案 1 :(得分:0)
for subdir in "etc include bin lib man share sbin"; do
为什么报价?将其更改为:
for subdir in etc include bin lib man share sbin; do
否则$dir
将在第一次(也是唯一的)迭代中包含etc include bin ...
。