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Count number of lines - 'findstr'

How do I count number of lines in a command output?


findstr /r/n "^" | find /c ":"


Above commands will display number of lines output by whatever command (well, nearly whatever) you specify in the front. 


For example: 


C:\>ping localhost | findstr /r/n "^" | find /c ":"
FINDSTR: // ignored
12


This comes handy if you want to find out how many OUs you have in Active Directory:


dsquery ou  -limit 0 | findstr /r/n "^" | find /c ":"


How many user accounts there are:


dsquery user -limit 0 | findstr /r/n "^" | find /c ":"


Computers:


dsquery computer -limit | findstr /r/n "^" | find /c ":"

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