Comparing Unix/Linux, PowerShell, and DOS Commands

The following lists some of my favorite Unix commands and maps the associated PowerShell and DOS commands, if any. If there is one Unix command I would love to have in PowerShell, it is the grep command with its regular expression support. I have noticed significant improvement in Vista's search capabilities compared to earlier versions of Microsoft operating systems that I have used and I would love to see that harnessed in PowerShell so that I could use it from the command line. The table appears a ways down, so scroll down to it.

UPDATE (24 March 2008): Note that I have updated this table with information on a grep equivalent and on the availability of less as an extension. Thanks to Kirk Munro for pointing both of these out (see Comments) and to Jeffrey Snover for his write-up of Select-String at http://blogs.msdn.com/powershell/archive/2008/03/23/select-string-and-grep.aspx.
Thanks also to Marco Shaw for pointing out that start-transcript (which can be closed with stop-transcript) provides functionality like Unix's script command. Thanks to Jonathan for mentioning tasklist as an alternative to ps and mentioning F7 for a graphical presentation of history commands.

Unix/Linux	PowerShell	Windows Vista DOS
ls	ls dir	dir
cp	cp copy	copy
mv	mv move	move
rm	rm del	del
netstat	netstat	netstat
man	man help	help
ps	ps tasklist	tasklist
finger	finger	finger
script (stop with CTRL-D)	start-transcript (stop with stop-transcript)
clear	clear cls	cls
cat	cat type	type
history / h	history / h F7	F7
unzip	unzip	unzip
zip	zip	zip
tee	tee
grep	Select-String
more	more	more
less	less (extension)
edit	edit	edit
kill	kill taskkill	taskkill

Type ‘man’ without any options in PowerShell command-line
to see long list of supported commands and scripting keywords.

The Windows PowerShell Quick Reference and Getting Started with Windows PowerShell are also useful resources.