By default, Purify does not modify the normal exit status of your program.
默认情况下，Purify是不会修改您程序的正常退出状态的。
If the first character of a command is a hyphen (-), the remainder of the line is executed, but its exit status is ignored.
如果一个命令的第一个字符是连字符(-)，那么该行中剩余的命令都会执行，不过其退出状态会被忽略。
The most common value should be SPE_EXIT (the program was successful and an exit status has been stored in the structure).
最常见的值应该是SPE_EXIT(程序成功执行，在这个结构中已经保存了一个退出状态)。
As you can use any computing language that manages command-line arguments and exit status, the possibilities are almost endless!
正如您可以使用管理命令行参数和退出状态的任何计算语言一样，存在各种各样的可能性。
Use the && control operator to combine two commands so that the second is run only if the first command returns a zero exit status.
使用&&控制操作符来组合两个命令，以便仅当第一个命令返回零退出状态时才运行第二个命令。
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。
If you set this variable, TCSH displays the exit status whenever a script or program returns a non-zero value, thereby indicating a potential error.
如果设置这个变量，那么当脚本或程序返回非零值时tcsh会显示退出状态，这会指出潜在的错误。
If you set this variable, TCSH displays the exit status whenever a script or program returns a non-zero value, thereby indicating a potential error.
如果设置这个变量，那么当脚本或程序返回非零值时tcsh会显示退出状态，这会指出潜在的错误。
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