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。
The chances of a Greek-style crisis in America are low, given the dollar's reserve-currency status, but not zero.
在美国，考虑到美元的储备货币地位，希腊式危机的可能性很低，但不为零。
They then assigned the men in the sample a socioeconomic status score between zero and 96, on a scale drawn up in 1950 (which was as close to 1910 as they could get).
他们按社会经济地位为抽样中的男性赋予不同的分值，分值范围从0到96，时间接近1950年(尽可能的接近1910年)。
Run a command only if another command returns a zero exit status.
仅当另一个命令返回零退出状态时才运行某个命令。
Errexit: if a command has an exit status of anything but 0 (zero), execute the err trap (if it is set and exists).
errexit：如果某个命令产生非0(零)的退出状态并且设置了err陷阱，则执行err陷阱并退出。
The ps command accepts zero or more PIDs as arguments and displays the associated process status.
ps命令接受0 个或多个PID作为参数并显示相关联的进程状态。
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。
This routine takes in two arguments, the second being the absolute value of time by which, if the lock could not be acquired, the routine returns with a non-zero status.
这个例程有两个参数，第二个参数是绝对时间值。如果在到达这个时间时还无法获得锁，例程会返回且状态码非零。
This is because as long as the connection is successful, the last exit status will be zero.
这是因为只要连接成功，最后的退出状态码就是零。
Run a command only if another command returns a non-zero exit status.
仅当另一个命令返回非零退出状态时才运行某个命令。
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。
Notice that when you run the command, the if statement for the last exit status is never reached because the script exits upon a non-zero return status of the cp command.
注意，当您运行该命令时，实现最终的退出状态的if语句将永远无法满足条件，因为脚本在遇到cp命令的非零返回状态时将退出。
Considering meshed network of distribution feed lines and node zero injection, we put forward a algorithm of status estimation based on branch currents.
提出考虑配电馈线环网和节点零注入的基于支路电流的状态估计算法。
Comprehensive utilization status of acid from washing water in chlorobenzene production was introduced. Zero discharging were realized, and got better economic and social benefits by innovation.
介绍了氯化苯生产过程中水洗酸废水综合利用的情况，通过工艺改造，实现了废酸的零排放，且具有显著的经济和社会效益。
The zero-knowledge status authentication is a fascinating question of contemporary password research, and the elliptic curve is the cipher system having higher security in comparison with others.
零知识身份认证是当代密码研究的一个引人入胜的问题，而椭圆曲线相对于其它密码体制具有更高安全性。
The zero-knowledge status authentication is a fascinating question of contemporary password research, and the elliptic curve is the cipher system having higher security in comparison with others.
零知识身份认证是当代密码研究的一个引人入胜的问题，而椭圆曲线相对于其它密码体制具有更高安全性。
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