How to create a copy using powershell without overwriting the original file

时间：2018-12-03 13:16:43

标签： powershell

So lets say I want to copy the file test.txt to another folder, but I want it to put create a copy and not just erase the file.

I know that Copy-Item overwrites the file in the destination folder but I don't want it to do that.

It also has to be a function

2 个答案:

答案 0 :(得分：0)

我认为这会对您有所帮助

2018-12-03 12:27:32,222 | ERROR | INPUT] | DefaultErrorHandler              | 43 - org.apache.camel.camel-core - 2.16.4 | Failed delivery for (MessageId: ID:xxxxxxxxxxxx-46588-1543829293785-1:21:1:1:1 
on ExchangeId: ID-xxxxxxxxxxxx-35264-1543835233229-2-1). Exhausted after delivery attempt: 1 caught: java.lang.IllegalArgumentException: The PayLoad elements cannot fit with the message parts of the BindingOpera
tion. Please check the BindingOperation and PayLoadMessage.

Message History
---------------------------------------------------------------------------------------------------------------------------------------
RouteId              ProcessorId          Processor                                                                        Elapsed (ms)
[from.XS.to.xsb?dat] [from.XS.to.xsb?dat] [jms://queue:input                                                             ] [        17]
[from.XS.to.xsb?dat] [setHeader7        ] [setHeader[operationName]                                                      ] [         0]
[from.XS.to.xsb?dat] [setHeader8        ] [setHeader[operationNamespace]                                                 ] [         0]
[from.XS.to.xsb?dat] [log6              ] [log                                                                           ] [        12]
[from.XS.to.xsb?dat] [to45              ] [cxf:bean:myEndpoint                                                           ] [         3]

Exchange
---------------------------------------------------------------------------------------------------------------------------------------
Exchange[
        Id                  ID-xxxxxxxxxxxx-35264-1543835233229-2-1
        ExchangePattern     InOut
        Headers             {breadcrumbId=ID:xxxxxxxxxxxx-46588-1543829293785-1:21:1:1:1, CamelRedelivered=false, CamelRedeliveryCounter=0, JMSCorrelationID=null, JMSCorrelationIDAsBytes=null, JMSDeliveryMode=2,
 JMSDestination=queue://input, JMSExpiration=0, JMSMessageID=ID:xxxxxxxxxxxx-46588-1543829293785-1:21:1:1:1, JMSPriority=4, JMSRedelivered=false, JMSReplyTo=queue://response, JMSTimestamp=1543840052184, JMSType=null, JMSXGroupID=null, JMSXUserID=null, operationName=MyOperation, operationNamespace=MyOperationNameSpace}
        BodyType            String
        Body                <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:v2="http://xxxx.xxxx/xxxxxxxx/xxx/xxxxxxxxxxxxxxxxxx/V2" xmlns:v21="http://xxxx.xxxx/xxxxxxxx/xxx/xxxxxx/V2">   
        <soapenv:Header><wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecur
ity-utility-1.0.xsd"><wsse:UsernameToken wsu:Id="UsernameToken-xxxx"><wsse:Username>username</wsse:Username><wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-ws
s-username-token-profile-1.0#PasswordDigest">xxxx</wsse:Password><wsse:Nonce EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary">
xxxxx</wsse:Nonce><wsu:Created>2018-12-03T12:27:32.183Z</wsu:Created></wsse:UsernameToken></wsse:Security></soapenv:Header>   <soapenv:Body>      <v2:MyRequest>
...
...
</v2:MyRequest>   </soapenv:Body></soapenv:Envelope>
]

Stacktrace



Stacktrace
---------------------------------------------------------------------------------------------------------------------------------------
java.lang.IllegalArgumentException: The PayLoad elements cannot fit with the message parts of the BindingOperation. Please check the BindingOperation and PayLoadMessage.
        at org.apache.camel.component.cxf.CxfEndpoint$CamelCxfClientImpl.setParameters(CxfEndpoint.java:1189)[44:org.apache.camel.camel-cxf:2.16.4]
        at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:470)[57:org.apache.cxf.cxf-core:3.1.5]
        at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:416)[57:org.apache.cxf.cxf-core:3.1.5]
        at org.apache.camel.component.cxf.CxfProducer.process(CxfProducer.java:134)[44:org.apache.camel.camel-cxf:2.16.4]
        at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:145)[43:org.apache.camel.camel-core:2.16.4]
        at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:77)[43:org.apache.camel.camel-core:2.16.4]
        at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:460)[43:org.apache.camel.camel-core:2.16.4]
        at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:196)[43:org.apache.camel.camel-core:2.16.4]
        at org.apache.camel.processor.Pipeline.process(Pipeline.java:121)[43:org.apache.camel.camel-core:2.16.4]
        at org.apache.camel.processor.Pipeline.process(Pipeline.java:83)[43:org.apache.camel.camel-core:2.16.4]
        at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:196)[43:org.apache.camel.camel-core:2.16.4]
        at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)[43:org.apache.camel.camel-core:2.16.4]
        at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:91)[43:org.apache.camel.camel-core:2.16.4]
        at org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:112)[46:org.apache.camel.camel-jms:2.16.4]
        at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:555)[154:org.apache.servicemix.bundles.spring-jms:3.2.17.RELEASE_1]
        at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:515)[154:org.apache.servicemix.bundles.spring-jms:3.2.17.RELEASE_1]
        at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:485)[154:org.apache.servicemix.bundles.spring-jms:3.2.17.RELEASE_1]
        at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:325)[154:org.apache.servicemix.bundles.spring-jms:3.2.17.RELEASE_1]
        at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:263)[154:org.apache.servicemix.bundles.spring-jms:3.2.17.RELEASE_1]
        at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1103)[154:org.apache.servicemix.bundles.spring-jms:3.2.17.RELEASE_1]
        at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1095)[154:org.apache.servicemix.bundles.spring-jms:3.2.17.RELEASE_1]
        at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:992)[154:org.apache.servicemix.bundles.spring-jms:3.2.17.RELEASE_1]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)[:1.8.0_181]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)[:1.8.0_181]
        at java.lang.Thread.run(Thread.java:748)[:1.8.0_181]

答案 1 :(得分：0)

即使我不是最优雅的方式，您也可以尝试类似的方法

$src = "$PSScriptRoot"
$file = "test.txt"
$dest = "$PSScriptRoot\dest"
$MAX_TRIES = 5
$copied = $false

for ($i = 1; $i -le $MAX_TRIES; $i++) {
    if (!$copied) {
        $safename = $file -replace "`.txt", "($i).txt"
        if (!(Test-Path "$dest\$file")) {
            Copy-Item "$src\$file" "$dest\$file"
            $copied = $true
        } elseif (!(Test-Path "$dest\$safename")) {
            Copy-Item "$src\$file" "$dest\$safename"
            $copied = $true
        } else {
            Write-Host "Found existing file -> checking for $safename"
        }
    } else {
        break
    }
}
  • for-loop将尝试安全地将文件复制最多5次（由$MAX_TRIES确定）
    • 如果5次还不够，什么都不会发生
  • regEx将创建test(1).txt，test(2).txt，...，以检查要复制的“安全”文件名
  • if语句将检查是否可以复制原始文件
  • elseif语句将尝试使用上面创建的$safename
    • 复制
  • else语句只是在显示正在发生的事情的“提示”
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