Linux 修改文件执行权限

chmod 帮助文档

chmod --help

Usage: chmod [OPTION]... MODE[,MODE]... FILE...
  or:  chmod [OPTION]... OCTAL-MODE FILE...
  or:  chmod [OPTION]... --reference=RFILE FILE...
Change the mode of each FILE to MODE.

  -c, --changes           like verbose but report only when a change is made
      --no-preserve-root  do not treat `/' specially (the default)
      --preserve-root     fail to operate recursively on `/'
  -f, --silent, --quiet   suppress most error messages
  -v, --verbose           output a diagnostic for every file processed
      --reference=RFILE   use RFILE's mode instead of MODE values
  -R, --recursive         change files and directories recursively
      --help     display this help and exit
      --version  output version information and exit

Each MODE is of the form `[ugoa]*([-+=]([rwxXst]*|[ugo]))+'.

Report chmod bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
For complete documentation, run: info coreutils 'chmod invocation'

示例

• 给所有用户添加test.sh文件可执行权限，注意：+-=操作w权限时只给当前用户添加

chmod +x test.sh

• 等同与+x，给所有用户添加test.sh文件可执行权限

chmod a+x test.sh

• 给当前用户添加test.sh文件的可执行权限

chmod u+x test.sh

• 给other用户添加test.sh文件的可执行权限

chmod o+x test.sh

• 去除所有用户对tesh.sh文件的写和执行权限

chmod a-wx test.sh

• 给所用用户添加test.sh文件的可读可写可执行权限

chmod a=rwx test.sh