bash 仅当 command1 在 cmd windows shell 中成功时才运行 command2
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Run command2 only if command1 succeeded in cmd windows shell
提问by user674669
How do we combine commands in cmd shell language such that the second command is only executed if the first command successfully completed?
我们如何在 cmd shell 语言中组合命令，以便仅在第一个命令成功完成后才执行第二个命令？
something like following bash-command
类似于以下 bash 命令
make && ./a.out
a.outis only executed if makewas successful
a.out仅make在成功时执行
回答by aioobe
The following
下列
command1 && command2
should work on cmdas well. Quote from here:
也应该继续工作cmd。从这里引用：
When using cmd.exe, you can put multiple commands on the same line by using ‘&' or ‘&&' between commands. Using a single ampersand (&) will cause the first command and then the second command to be run in sequence. Using double ampersands (&&) introduces error checking. The second command will run only if the first command is successful.
使用 cmd.exe 时，可以通过在命令之间使用“&”或“&&”将多个命令放在同一行。使用单个与号 (&) 将导致按顺序运行第一个命令和第二个命令。使用双与号 (&&) 会引入错误检查。 只有当第一个命令成功时，第二个命令才会运行。
回答by Fredrik Pihl
An AND list has the form
AND 列表具有以下形式
command1 && command2
command2 is executed if, and only if, command1 returns an exit status of zero.
当且仅当 command1 返回退出状态为零时才执行 command2。
An OR list has the form
OR 列表具有以下形式
command1 || command2
command2 is executed if and only if command1 returns a non-zero exit status. The return status of AND and OR lists is the exit status of the last command executed in the list.
当且仅当 command1 返回非零退出状态时才执行 command2。AND 和 OR 列表的返回状态是列表中执行的最后一个命令的退出状态。
