问题
I basically want to use powershell and get the console user like
"query session | findstr console | awk '{print $2}'"
but not using awk, but I can't get it to work.
$out = query session | findstr console # good
$consoleuser = $out.split('\s+')[1] # doesn't work
$out looks something like:
>console joe 2 Active
$consoleuser ends up being:
ole joe 2 Active
回答1:
.Split() is a .Net string method, it doesn't use regexes. -split is the PowerShell operator and uses regexes.
And calling out to findstr is usable, but there's no need to leave PS to use it. e.g.
$out = query session | Where {$_ -match 'console'}
$consoleuser = ($out -split '\s+')[1]
((query session) -match 'console' -split '\s+')[1]
回答2:
As others have suggested try the following
$out = query session | findstr console
$consoleuser = $($out -split('\s+'))[1]
Or you could try
$consoleuser = $ENV:username
回答3:
To complement TessellatingHeckler's helpful answer with a further optimization (but note that armorall171's helpful recommendation to simply use $env:USERNAME may be all you need):
(-split ((query session) -match '^>console'))[1]
Output from external command query session is returned as an array of strings by PowerShell, and the -match operator filters that array down to only the matching elements (just 1 line in this case).
The -split operator has a unary form whose behavior is similar to awk's default field-parsing behavior:
It splits the input into array elements by runs of whitespace, ignoring leading and trailing whitespace.
Example:
> -split " ab `t `t cde `n `n efgh "
ab
cde
efgh
回答4:
Try
($out -Split '\s+')[1]
More useful stuff here
来源：https://stackoverflow.com/questions/40250376/using-powershell-like-awk-to-get-the-console-user