发布时间：2015-02-10 14:45:03

http://linuxcommand.org/lc3_wss0110.phpinteger1 -eq integer2 integer1 is equal to integer2.integer1 -ne integer2 integer1 is not equal to integer2.integer1 -le integer2 integer1 is less than or equal to integer2.integer1 -lt integer2 integer1 is less than integer2.integer1 -ge integer2 integer1.........【阅读全文】

发布时间：2015-02-10 14:30:43

http://linuxcommand.org/lc3_wss0110.php#!/bin/bash echo -n "Type a digit or a letter > " read character case $character in # Check for letters [[:lower:]] | [[:upper:]] ) echo "You typed the letter $character" ;; # Check for dig.........【阅读全文】

发布时间：2015-02-09 16:39:15

http://linuxcommand.org/lc3_wss0080.phpshell 测试语句Here is a partial list of the conditions that test can evaluate. Since test is a shell builtin, use "help test" to see a complete list.ExpressionDescription.........【阅读全文】

发布时间：2015-02-09 15:35:53

http://linuxcommand.org/lc3_wss0020.phpLogin shells read one or more startup files as shown below:FileContents/etc/profileA global configuration script that applies to all users.~/.bash_profile.........【阅读全文】

发布时间：2015-02-09 14:21:37

http://linuxcommand.org/lc3_lts0090.phpFile PermissionsIn the diagram below, we see how the first portion of the listing is interpreted. It consists of a character indicating the file type, followed by three sets of three characters that convey the reading, writing and execution permission for .........【阅读全文】