jenv是跨平台的java版本管理工具。当然,pyenv仿的rbenv,jenv也是仿的rbenv,功能和用法也很类似。$brewinstalljenv添加path$echo‘exportPATH“$HOME/.jenv/bin:$PATH”’~/.zshrc$echo‘ev

!/bin/shfind/tmp/homeworkmaxdepth1typed|whilereaddir;docount$(find"$dir"typef|wcl)echo"$dir:$count"done!/bin

root@localhostadvanced_shell_scriptcattest15.sh!/bin/bash!/bin/bashechoe默认情况下，echo命令只显示可打印文本字符。在创建菜单项时，非可打印字符通常也很有用，比如制表符和换行符。要在echo命令中包含这些字符，必

root@localhostadvanced_shell_scriptcattest15.sh!/bin/bash!/bin/bashechoe默认情况下，echo命令只显示可打印文本字符。在创建菜单项时，非可打印字符通常也很有用，比如制表符和换行符。要在echo命令中包含这些字符，必

Shell函数返回值shell函数返回值一般有3种方式：1.return语句shell函数的返回值可以和其他语言的返回值一样，通过return语句返回。比如：!/bin/bashfunctionmytest(){echo"mytestfunction"echo

sudoaptgetinstallapttransporthttpscacertificatesdirmngrsudoaptkeyadvkeyserverhkp://keyserver.ubuntu.com:80recvE0C56BD4echo"debhttps://repo.clickhouse.tech/

!/bin/bashtanj20170911DATE\date%Y%m%d\TIME\date%H:%M:%S\echo"$DATE$TIMEstart"if \!n"$1"\;then  

publicfunctionrequest1(Request$request){//取值$nameRequest::input('name');//是否有值if($requesthas('name')){echo$requestinput('name');}$res

!/bin/sh./etc/profilepidpsaux|greptomcat|grepvgrep|grepvretomcat|awk'{print$2}'echo$pidifn"$pid"then

main.lualocalskynetrequire"skynet"localsnaxrequire"snax"localfunctionmain(...)print("SkynetServerStarting....")localgate