-o 当由pathname指定的文件或目录存在并且被子当前进程的有效用户ID所指定的用户拥有时返回真。 UNIX Shell 里面比较字符写法: -eq 等于 -ne 不等于 -gt 大于 -lt 小于 -le 小于等于 -ge 大于等于 -z 空串 = 两个字符相等 != 两个字符不等 -n 非空串 --- 更为详细的说明: 运算符 描述 示例 文件比...
unix 的邮件通知系统,当新邮件到达时在命令行通知用户并告诉它来自谁 bind 用于设置 Readline 键绑定和变量 bison 一个类似于 yacc 的解析器生成器 break 用于终止for循环、while循环和until循环的执行 builtin 用于运行内置的 shell,向它传递参数(args),以及获取退出状态 bzcmp 用于对 bzip2 压缩文件调用 cmp 实用...
daemon. In UNIX® systems, a long-lived process that runs unattended to perform continuous or periodic system-wide functions, such as network control. Some daemons are triggered automatically to perform their task; others operate periodically. An example is the cron daemon, which periodically perf...
与builtin相反,它屏蔽一个内置命令,允许运行一个shell脚本或同名的可执行代码而无须给出完全路径名。 举个例子吧。 pwd命令有两个,一个是shell内置的,一个是可执行程序。 当执行一些奇怪的路径名后,shell内置的pwd会打印出"错误信息",但外部的pwd会打印出当前目录的"原来面目"。请看下面: [root@home root]#...
使用`adduser`命令创建用户时,需要先切换至root用户,然后使用`adduser`命令创建用户并设置密码。使用`useradd`命令创建用户时,需要先创建用户的主目录,并设置用户的主目录,然后使用`useradd`命令创建用户并设置密码。对于第二种方式,如果出现没有home下的文件夹,以及shell无法自动补全的情况,可以修改/etc/passwd...
zshis a UNIX command interpreter (shell) that is used as an interactive login shell and as a shell script command processor. It has command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and a host of other ...
Z shell ("Zsh") 命令通常在系统中的 /bin/zsh 中。如果在安装 Linux 时没有安装它,那么可以在大多数发行版的安装磁盘中找到它。当然也可以从 http://www.zsh.org 下载。顺便提一下,它并不只限于 Linux - 其源代码可以在大多数 UNIX 平台(包括 AIX)上成功地编译,并且还有许多二进制文件。
UNIX is a registered trademark of The Open Group in the United States and other countries. Other company, product, or service names may be trademarks or service marks of others. xviii IBM z/OS Version 2 Release 1 Technical Updates Preface This IBM® Redbooks® publication provides a broad...
Robert Hering Lutz Kühner Neil O'Connor Lívio Sousa International Technical Support Organization UNIX System Services z/OS Version 1 Release 7 Implementation March 2006 SG24-7035-01 Note: Before using this information and the product it supports, read the information in "Notices" on page xiii. ...
You can manually add content to Knowledge Center for z/OS by copying it to your z/OS directories in Unix System Services. A shell script, receive.sh, and a z/OSMF workflow are provided to assist with acquiring and updating z/OS base element content. By adding content, you can make ...