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11-05-2008
| #1 (permalink) |
| | ren filename with time help Hi Gang, I'm driving myself crazy with this problem! Goal, write a logfile with current time as the filename... examples being: $time1=get-date -UFormat "%H%M-%d%m%y" get-ExecutionPolicy >> $time1.log ///completes but no file is created/// PS C:\temp> $time1 1936-051108 ///ok let's try it like this/// PS C:\temp> ren c:\temp\test.log -newname $time1 ///this works but no file extension???/// PS C:\temp> ren c:\temp\test.log -newname $time1.log Rename-Item : Cannot bind argument to parameter 'NewName' because it is null. At line:1 char:30 + ren c:\temp\test.log -newname <<<< $time1.log thanks in advance! |
My System Specs |
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11-05-2008
| #2 (permalink) |
| | Re: ren filename with time help On Nov 6, 11:20*am, Joe <joedon...@xxxxxx> wrote: Quote: > Hi Gang, > > I'm driving myself crazy with this problem! *Goal, write a logfile > with current time as the filename... > > examples being: > > $time1=get-date -UFormat "%H%M-%d%m%y" > get-ExecutionPolicy >> $time1.log > ///completes but no file is created/// > > PS C:\temp> $time1 > 1936-051108 > > ///ok let's try it like this/// > PS C:\temp> ren c:\temp\test.log -newname $time1 > ///this works but no file extension???/// > > PS C:\temp> ren c:\temp\test.log -newname $time1.log > Rename-Item : Cannot bind argument to parameter 'NewName' because it > is null. > At line:1 char:30 > + ren c:\temp\test.log -newname <<<< *$time1.log > > thanks in advance! Get-ExecutionPolicy > "$( Get-Date -UFormat '%H%M-%d%m%y' ).log" When you put .log on the end of a variable name, PowerShell thinks it is a property named "log", and will try to evaluate it. Because it evaluates to null, no file is created. Jeff |
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11-06-2008
| #3 (permalink) |
| | Re: ren filename with time help On Nov 6, 12:37*pm, Jeff <jeff.hill...@xxxxxx> wrote: Quote: > On Nov 6, 11:20*am, Joe <joedon...@xxxxxx> wrote: > > > Quote: > > Hi Gang, Quote: > > I'm driving myself crazy with this problem! *Goal, write a logfile > > with current time as the filename... Quote: > > examples being: Quote: > > $time1=get-date -UFormat "%H%M-%d%m%y" > > get-ExecutionPolicy >> $time1.log > > ///completes but no file is created/// Quote: > > PS C:\temp> $time1 > > 1936-051108 Quote: > > ///ok let's try it like this/// > > PS C:\temp> ren c:\temp\test.log -newname $time1 > > ///this works but no file extension???/// Quote: > > PS C:\temp> ren c:\temp\test.log -newname $time1.log > > Rename-Item : Cannot bind argument to parameter 'NewName' because it > > is null. > > At line:1 char:30 > > + ren c:\temp\test.log -newname <<<< *$time1.log Quote: > > thanks in advance! > Try this: > > Get-ExecutionPolicy > "$( Get-Date -UFormat '%H%M-%d%m%y' ).log" > > When you put .log on the end of a variable name, PowerShell thinks it > is a property named "log", and will try to evaluate it. *Because it > evaluates to null, no file is created. > > Jeff  |
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