bash 如何检查给定路径中是否存在目录
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How to check if a directory exists within a given path
提问by Mantas
I'm creating a simple script for backing up and I want to check if a directory exists in a given path like so:
我正在创建一个简单的备份脚本，我想检查给定路径中是否存在目录，如下所示：
fullPath=/usr/local/webapps/mydir
if mydir exists in my $fullPath
then back it up
else give error
fi
My question is how do I formulate the if statement to check if the last directory exists in the $fullPathvariable? Just to clarify, for this case it would be mydirif I used /usr/local it would be localetc.
我的问题是如何制定 if 语句来检查$fullPath变量中是否存在最后一个目录？只是为了澄清一下，对于这种情况，如果我使用 /usr/local ，它将是mydir，它将是本地等。
Thanks in advance!
提前致谢！
回答by ronalchn
Duplicate question? Check if a directory exists in a shell script
重复的问题？检查shell脚本中是否存在目录
if [ -d "$DIRECTORY" ]; then
# Control will enter here if $DIRECTORY exists.
fi
The $DIRECTORY is the pathname
$DIRECTORY 是路径名
For your case, you can just do:
对于您的情况，您可以这样做：
if [ -d "$fullPath" ]; then
then back it up
else give error
fi
