问题描述
我试图在一行中合并多个linux命令来执行部署操作。
例如
I am trying to merge multiple linux commands in one line to perform deployment operation.For example
cd /my_folder
rm *.jar
svn co path to repo
mvn compile package install
推荐答案
只有前一个成功时才执行每个命令，然后使用&&& 运算符组合它们：
If you want to execute each command only if the previous one succeeded, then combine them using the && operator:
cd /my_folder && rm *.jar && svn co path to repo && mvn compile package install
如果其中一个命令失败，则其后的所有其他命令将不会
If one of the commands fails, then all other commands following it won't be executed.
如果您要执行所有命令，无论先前的命令是否失败，请用分号分隔它们：
If you want to execute all commands regardless of whether the previous ones failed or not, separate them with semicolons:
cd /my_folder; rm *.jar; svn co path to repo; mvn compile package install
在你的情况下，我想你想要第一个执行下一个命令
In your case, I think you want the first case where execution of the next command depends on the success of the previous one.
您也可以将所有命令放在脚本中，然后执行：
You can also put all commands in a script and execute that instead:
#! /bin/sh
cd /my_folder \
&& rm *.jar \
&& svn co path to repo \
&& mvn compile package install
（行末尾的反斜杠是为了防止shell下一行是一个新命令;如果省略反斜杠，您需要在一行中写整个命令。）
(The backslashes at the end of the line are there to prevent the shell from thinking that the next line is a new command; if you omit the backslashes, you would need to write the whole command in a single line.)
将其保存到文件，例如 myscript ，并使其可执行：
Save that to a file, for example myscript, and make it executable:
chmod +x myscript
现在可以像机器上的其他程序一样执行该脚本。但是如果你不把它放在你的 PATH 环境变量中列出的目录中（例如 / usr / local / bin ，或在一些Linux发行版〜/ bin ），那么您将需要指定该脚本的路径。如果它在当前目录中，则执行它：
You can now execute that script like other programs on the machine. But if you don't place it inside a directory listed in your PATH environment variable (for example /usr/local/bin, or on some Linux distributions ~/bin), then you will need to specify the path to that script. If it's in the current directory, you execute it with:
./myscript
脚本中的命令的工作方式与第一个示例中的命令相同;下一个命令仅在前一个成功时执行。对于所有命令的无条件执行，只需在其自己的行上列出每个命令：
The commands in the script work the same way as the commands in the first example; the next command only executes if the previous one succeeded. For unconditional execution of all commands, simply list each command on its own line:
#! /bin/sh
cd /my_folder
rm *.jar
svn co path to repo
mvn compile package install
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