内容简介：The first statement is a Mac, GNU/Linux, and BSD portable way of finding the location of the bash interpreter. The second statement combinesReferences:
#!/usr/bin/env bash set -euo pipefail
The first statement is a Mac, GNU/Linux, and BSD portable way of finding the location of the bash interpreter. The second statement combines
- “set -e” which ensures that your script stops on first command failure. By default, when a command fails, bash executes the next command. Looking at the logs, you might feel that the script executed successfully while some commands might have failed.
- “set -u” which ensures that your script exits on first unset variable encountered. Otherwise, bash replaces the unset variables with empty default values.
- “set -o pipefail” which ensures that if any command in a set of piped commands failed, the overall exit status is the status of the failed command. Otherwise, the exit status is the status of the last command.
References:
以上就是本文的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，也希望大家多多支持 码农网
猜你喜欢:
本站部分资源来源于网络，本站转载出于传递更多信息之目的，版权归原作者或者来源机构所有，如转载稿涉及版权问题，请联系我们。
Coding the Matrix
Philip N. Klein / Newtonian Press / 2013-7-26 / $35.00
An engaging introduction to vectors and matrices and the algorithms that operate on them, intended for the student who knows how to program. Mathematical concepts and computational problems are motiva......一起来看看 《Coding the Matrix》 这本书的介绍吧!
