In other words, if the first command runs successfully, the second command runs.
换句话说，如果第一个命令运行成功，则第二个命令将运行。
In other words, if the first command is successful, the second command does not run.
换句话说，如果第一个命令成功，则第二个命令不会运行。
The stdout of the first command is not written to a file and then read by the second command.
第一个命令的stdout没有写到一个文件中，然后再由第二个命令读取。
If the first command does not exit as you expected, the second command still runs — and fails.
如果第一个命令未按您预期的那样退出，第二个命令仍然会运行——结果会导致失败。
Here is a sample of method trace output (using the second command line from the previous section).
这里是方法跟踪输出的一个示例(用前面一段的第二个命令行)。
You can also use | to redirect the output of the second command in the pipeline to a third command, and so on.
您还可以使用 | 将管道中第二个命令的输出重定向到第三个命令，依此类推。
Before deploying the application, the second command changes the permissions on the home directory to be 700.
在部署这个应用程序之前，第二个命令会将home目录的权限修改为700。
When –all is added to the second command, it replaces the authorizations previously set rather than adding to them.
当 –all添加到第二条命令之后，它会替换之前设置的授权，而不是添加权限。
Statement 6 chains two commands with the or operator: the second command (echo) executes only if the first command fails.
语句6用or操作符连接两个命令：第二个命令(echo)只在第一个命令失败的情况下执行。
When the second command executes, SketchUp automatically draws the line corresponding to the Edge object in its design window.
当第二条命令执行时，SketchUp自动在设计窗口中画出与Edge对象对应的直线。
Similarly, the || control operator separates two commands and runs the second command only if the first command returns a non-zero exit status.
类似地，||控制操作符分隔两个命令，并且仅当第一个命令返回非零退出状态时才运行第二个命令。
For example, suppose you use a semicolon to combine two commands in which the proper execution of the second command depends entirely upon the successful completion of the first.
例如，假设您使用分号来组合两个命令，其中第二个命令的正确执行完全依赖于第一个命令的成功完成。
The second command runs the module.
第二个命令将运行该模块。
The second command will install symlinks into your sitelib directory.
第二条命令将会将symlinks安装到你的sitelib目录中。
The second command, chmod, makes the file containing the Python program executable.
第二条命令chmod使包含Python程序的文件成为可执行文件。
The second command should download the Anacron source code into a subdirectory called anacron.
第二个命令将把Anacron源代码下载到名为 anacron 的子目录中。
The second command uses the ec2-describe-instances command, which lists all the running instances.
第二条命令使用ec2-describe-instances 命令，该命令列示所有正在运行的实例。
The second command creates a public key digital certificate for the recipient to decrypt and verify your messages.
第二个命令创建了一个公钥数字证书，供收件人解密和验证您的消息。
The second command shows that you cannot directly query the underlying device by using the standard fuser options.
第二个命令表明，不能使用标准的fuser选项直接查询底层设备。
The second command specifies that this rule matches all packets coming from IP addresses ranging 192.168.0.0 to 192.168.0.24.
第二条命令指定该规则与所有来自192.168.0.0到192.168.0.24的IP地址范围的信息包匹配。
The second command extracts the XAMPP distribution and places it directly in /opt (thus the need to preface the command with sudo.
第二个命令解压 XAMPP 发行版并把它直接放在 /opt 中（因此需要在命令前面加上 sudo）。
The second command, /usr/local/bin/search --config /usr/local/etc/sphinx.conf wind, found the substring wind in two part descriptions.
第二条命令 /usr/local/bin/search --config /usr/local/etc/sphinx.confwind在两个零件描述中找到了子字符串 wind。
The second command, /usr/local/bin/search --config /usr/local/etc/sphinx.conf wind, found the substring wind in two part descriptions.
第二条命令 /usr/local/bin/search --config /usr/local/etc/sphinx.confwind在两个零件描述中找到了子字符串 wind。
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