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How to use if in Linux to determine whether a directory exists
The method is as follows:
1. Script How to use if to determine whether a directory exists
#! /bin/bash if [ -d "c" ];then echo "目录c存在" else echo "目录不存在" fi
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2. Simple writing method
#! /bin/bash [ -d "c" ] && echo "目录c存在" # 或者 [ -d "d" ] || echo "目录d不存在"
More judgment formats are as follows:
-e filename 如果 filename存在,则为真 -d filename 如果 filename为目录,则为真 -f filename 如果 filename为常规文件,则为真 -L filename 如果 filename为符号链接,则为真 -r filename 如果 filename可读,则为真 -w filename 如果 filename可写,则为真 -x filename 如果 filename可执行,则为真 -s filename 如果文件长度不为0,则为真 -h filename 如果文件是软链接,则为真
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