Linux determines whether a file exists

##linux determines whether the file exists

1. Use the ls command to determine

ls -l /home/admin/test.txt # 查看/home/admin/目录下test.txt文件信息，不存在则报错

2. Use find to search and judge.

find /home -name "test.txt" # 在/home目录及其子目录下查找test.txt文件，不存在则无输出

3. Use shell script to judge.

Save it as abc.sh and run it with sh abc.sh.

#文件存在则删除
if [ ! -f "/data/test.txt" ];then
  echo "文件不存在"
  else
  echo "文件存在"
fi

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