文件权限 #

#!/bin/bash

# 数字模式
chmod 755 script.sh
chmod 644 file.txt

# 符号模式
chmod +x script.sh
chmod u+rwx,g+rx,o+rx script.sh
chmod a-x file.txt

# 递归修改
chmod -R 755 directory/

#!/bin/bash

# 修改所有者
chown user file.txt

# 修改所属组
chown :group file.txt

# 同时修改
chown user:group file.txt

# 递归修改
chown -R user:group directory/

#!/bin/bash

file="script.sh"

# 检查权限
[ -r "$file" ] && echo "可读"
[ -w "$file" ] && echo "可写"
[ -x "$file" ] && echo "可执行"

# 查看权限
ls -l "$file"
stat "$file"