if [ int1 -ne int2 ] 如果不等于 if [ int1 -ge int2 ] 如果>= if [ int1 -gt int2 ] 如果> if [ int1 -le int2 ] 如果<= if [ int1 -lt int2 ]如果< 3、文件的判断 [ -b FILE ] 如果 FILE 存在且是一个块特殊文件则为真。 [ -c FILE ] 如果 FILE 存在且是一个字特殊文...
If any file operands except for -h and -L primaries refer to symbolic links, the symbolic link is expanded and the test is performed on the resulting file. SunOS 5.10 Last change: 23 Aug 2002 2 User Commands test(1) If you test a file you own (the -r -w or -x tests), but th...
script.sh {start|stop|restart|status} 如果参数为start,创建空文件/var/lock/subsys/script,并显示“Starting scriptsuccessfully.”; 如果参数为stop,则删除文件/var/lock/subsys/script,并显示“Stop script finished.”; 如果参数为restart,则删除文件/var/lock/subsys/script后重新创建,并显示“Restarting scripts...
"Unable to find a default server with Active Directory Web Services running" when calling a script with Import-module AD "Unable to process the request due to an internal error" After AD Upgrade "WITH" Keyword In Powershell? “The security identifier is not allowed to be the owner of this...
if {condition exists} then … while {condition exists} do … until {condition exists} do … 无论随后的操作是什么,这些基于逻辑的命令都依靠判断一种条件是否真实存在来决定后续的操作。test 命令是使得在每一种情况下都能够确定要判断的条件是否存在的实用工具。因此,彻底了解这个命令对于撰写成功的 shell 脚...
shell script中,表达式的结果可以进行与或非逻辑连接: if[$x-eq5]&&[$y-eq 6];thenecho"help";fiiftest$x-eq5&&test$y-eq 6;thenecho"help";fiif![$x-eq5];thenecho"help";fi 八、总结 本文介绍了shell script中重要命令test的用法。
$Results = $Employees | ForEach-Object -Process { $Employee = $_ $Account = $Accounts | Where-Object -FilterScript { $_.Name -eq $Employee.Name } [pscustomobject]@{ Id = $Employee.Id Name = $Employee.Name Email = $Account.Email } } 但是,该实现必须针对 $Employee 集合中的每个项...
Test-ScriptFileInfo -Path "D:\code\Test-Runbook.ps1" | Format-List * Name : Test-Runbook Path : D:\code\Test-Runbook.ps1 ScriptBase : D:\code ReleaseNotes : {contoso script now supports following features, Feature 1, Feature 2, Feature 3...} Version : 1.0 Guid : eb246b19-17da...
Script Usage In a script, you would typically use it in an if statement. To negate and check if the folder or file doesnotexist, use either "!" or "-not", and remember to enclose the Test-Path statement in parentheses. Also remember that if the path or folder name contains a space,...
foriin12345doif[$i-eq3]thenbreakfiecho$idone 上面的示例中,当$i的值等于3时,break命令将退出for循环。 builtin builtin命令用于执行一个内置命令,而不是调用外部可执行文件。 示例: 代码语言:shell 复制 builtinechohello 上面的示例中,builtin echo将执行Shell内置的echo命令,而不是调用外部的echo可执行文件...