Aliases are not expanded when the shell is not interactive, unless theexpand_aliasesshell option is set usingshopt. It can be tested by adding the command “alias” to simple bash script and the script execution will not give the alias command, whereas on the interactive shell it will provide...
alias 是目前 shell 环境的一部分 (ref POSIX.1 Shell Command Language sec Shell Execution Environment...
nvm install node # "node" is an alias for the latest versionTo install a specific version of node:nvm install 14.7.0 # or 16.3.0, 12.22.1, etcTo set an alias:nvm alias my_alias v14.4.0Make sure that your alias does not contain any spaces or slashes.The first version installed ...
nvm install node # "node" is an alias for the latest versionTo install a specific version of node:nvm install 14.7.0 # or 16.3.0, 12.22.1, etcTo set an alias:nvm alias my_alias v14.4.0Make sure that your alias does not contain any spaces or slashes.The first version installed ...
alias(1) allocate(1) animate(1) annotate(1) ant(1) antlr(1) appcert(1) appres(1) apptrace(1) apropos(1) ar(1) ar(1g) arch(1) as(1) as(1g) as86(1) asa(1) at(1) atobm(1) atok(1) ATOK(1) atok12migd(1) atok12migs(1) atokx2cvttool(1) atq(1) atrm(1) audioco...
$ ./script.sh 上面例子中,script.sh是脚本文件名。脚本通常使用.sh后缀名,不过这不是必需的。 如果没有 Shebang 行,就只能手动将脚本传给解释器来执行。 $ /bin/sh ./script.sh # 或者 $ bash ./script.sh 执行权限和路径 前面说过,只要指定了 Shebang 行的脚本,可以直接执行。这有一个前提条件,就是...
Delete the Bash Alias Bash Script Definition Bash script is one of the shell scripting languages and it is the default shell scripting language of Linux. Different Bash commands can be executed from the terminal. When the Bash commands are written in a file with the “.sh” or “.bash” ...
echo{1..$n}# Works in ksh, but not bash/dash/shecho{1..10}# Works in ksh and bash, but not dash/shecho-n 42# Works in ksh, bash and dash, undefined in shexpr match str regex# Unportable alias for `expr str : regex`trap'exit 42'sigint# Unportable signal speccmd &> file#...
可能包括以下几种情况: 1. 无法找到匹配的文本:当使用grep时,可能会出现无法找到匹配的文本的情况。这可能是因为正则表达式的模式不正确,或者搜索的文件路径不正确。在使用grep时,可以通过调整正...
$ type -a echoecho is shell builtinecho is /usr/bin/echoecho is /bin/echo 上面代码表示,echo命令即是内置命令,也有对应的外部程序。 type命令的-t参数,可以返回一个命令的类型:别名(alias),关键词(keyword),函数(function),内置命令(builtin)和文件(file)。