Command Detail - T

tail

gc file.txt | select-object -last 10

gc is an alias for get-command

tail -f

gc -tail 10 -wait c:\windows\windowsupdate.log

tee

The Powershell equivalent of the unix tee is tee-object....which, by default is aliased to tee

So you can do this:

get-process | tee c:\temp\test_tee.txt

...to both get a list of processes on your screen and get that output saved into the file in c:\temp

time

The Powershell equivalent of the bash shell 'time' is 'measure-command'.

So, in bash you would do this:

time egrep ORA- *log

....and get all the egrep output, then

real    0m4.649s
user    0m0.030s
sys     0m0.112s

In Powershell, you would do this

measure-command {select-string ORA- *.sql}

...and get...

Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 0
Milliseconds      : 105
Ticks             : 1057357
TotalDays         : 1.22379282407407E-06
TotalHours        : 2.93710277777778E-05
TotalMinutes      : 0.00176226166666667
TotalSeconds      : 0.1057357
TotalMilliseconds : 105.7357

...you don't get the 'user CPU' time and 'system CPU' time, but you do get the added bonus of seeing how long the command took rendered as a fraction of a day!

touch - create an empty file

set-content -Path c:\temp\new_empty_file.dat -Value $null

I found the set-content command at Super User, the contributor being user techie007

touch - update the modified date

set-itemproperty -path c:\temp\new_empty_file.dat -name LastWriteTime -value $(get-date)

I got this from a comment by Manung Han on the Lab49 Blog. Doug Finke shares touch function in a later comment on the same post that fully implements the linux command.