在bash中,可以使用export命令来设置环境变量,例如: 代码语言:txt 复制 export MY_VARIABLE=value 这样就将一个名为MY_VARIABLE的环境变量设置为value。 然而,有时候我们需要在特定的上下文中覆盖或恢复环境变量的值,这时就可以使用环境模块来实现。 环境模块是一个用于管理环境变量的工具,它可以创建和管理多个环境的...
在终端上执行 help export 可以查看 Bash 内置命令 export 的帮助文档: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 # helpexportexport:export[-fn][name[=value]...]orexport-p Setexportattributeforshell variables.Marks eachNAMEforautomaticexportto the environmentofsubsequently executed commands.IfVA...
其实直接运行脚本的方式产生的效果同使用bash指令的一样,关于这三种脚本的运行方式可以阅读Bash脚本的运行方式。 从上面的例子中不难发现,使用source的方式会发现,export后的变量变成了当前Shell的环境变量,可以在当前Shell环境下打印一下变量A。 [root@amt01 article002]#echo$A Hello A![root@amt01 article002]# ...
[root@linux ~]#declare [-aixr] variable 参数: -a :将后面的 variable 定义成为数组 (array) -i :将后面接的 variable 定义成为整数数字 (integer) -x :用法与 export 一样,就是将后面的 variable 变成环境变量; -r :将一个 variable 的变量设定成为 readonly ,该变量不可被更改内容,也不能 unset ...
Paste a shell script onhttps://www.shellcheck.netfor instant feedback. ShellCheck.netis always synchronized to the latest git commit, and is the easiest way to give ShellCheck a go. Tell your friends! From your terminal Runshellcheck yourscriptin your terminal for instant output, as seen above...
println(ANSI_BOLD + ANSI_GREEN + "Found environment variable named hub_org with value as: " + hub_org + ANSI_NORMAL) } } // cleanWs() checkout scm commit_hash = sh(script: 'git rev-parse --short HEAD', returnStdout: true).trim() ...
If the environment variable $XDG_CONFIG_HOME is present, it will place the nvm files there. You can add --no-use to the end of the above script to postpone using nvm until you manually use it:export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" ||...
To perform this action, use EXPORT. Azure CLI Copy export AZURE_STORAGE_ACCOUNT=$storageAccount export AZURE_STORAGE_KEY=$accountKey az storage container list # Uses the environment variables to display the list of containers. The following script creates a metadata string and then uses the az...
When bash is started non-interactively, to run a shell script, for example, it looks for the variable BASH_ENV in the environment, expands its value if it appears there, and uses the expanded value as the name of a file to read and execute. Bash behaves as if the following command ...
In bash-completion >= 2.12, we search the data directory ofbash-completionunder the installation prefix where the target command is installed. When one can assume that the version of the target bash-completion is 2.12 or higher, the completion script can actually be installed to$PREFIX/share/ba...