shell脚本查找文件是否有读/写/执行权限

原文：http://bash.cyberciti.biz/file-management/find-file-permission-script/

文件权限如下：
=>读权限(r)
=>写权限(w)
=>执行权限(x)

该脚本相关选项如下：

Conditional Expression	Meaning
-a file	True if file exists.
-b file	True if file exists and is a block special file.
-c file	True if file exists and is a character special file.
-d file	True if file exists and is a directory.
-e file	True if file exists.
-f file	True if file exists and is a regular file.
-g file	True if file exists and is set-group-id.
-h file	True if file exists and is a symbolic link.
-k file	True if file exists and its "sticky" bit is set.
-p file	True if file exists and is a named pipe (FIFO).
-r file	True if file exists and is readable.
-s file	True if file exists and has a size greater than zero.
-t fd	True if file descriptor fd is open and refers to a terminal.
-u file	True if file exists and its set-user-id bit is set.
-w file	True if file exists and is writable.
-x file	True if file exists and is executable.
-O file	True if file exists and is owned by the effective user id.
-G file	True if file exists and is owned by the effective group id.
-L file	True if file exists and is a symbolic link.
-S file	True if file exists and is a socket.
-N file	True if file exists and has been modified since it was last read.

以下是该shell脚本的源代码：

#!/bin/bash
# Shell script to find out whether file has read, write and execute
# permission
# -------------------------------------------------------------------------
# Copyright (c) 2005 nixCraft project <http://cyberciti.biz/fb/>
# This script is licensed under GNU GPL version 2.0 or above
# -------------------------------------------------------------------------
 
echo -n "Enter file name : "
read file
 
# find out if file has write permission or not
[ -w $file ] && W="Write = yes" || W="Write = No"
 
# find out if file has excute permission or not
[ -x $file ] && X="Execute = yes" || X="Execute = No"
 
# find out if file has read permission or not
[ -r $file ] && R="Read = yes" || R="Read = No"
 
echo "$file permissions"
echo "$W"
echo "$R"
echo "$X"

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power by soyo123 2007-2008

shell脚本 查找文件是否有读/写/执行权限

shell脚本查找文件是否有读/写/执行权限