Windows XP Command Line Syntax

Parameters Command Line Parameters
Variables Create/read environment variables
Redirection Spooling output to a file, piping input
AND/OR Logic Conditional Execution (If-Then-Else)
Loops Loops and Subroutines
functions How to package blocks of code
Evaluating expressions
Using brackets to Group and expand expressions
Delayed Expansion Manage and text
SET /A Environment variable arithmetic
VarSubstring Extract part of a variable (substring)
VarSearch Search & replace part of a variable
Escape chars, delimiters and quotes
Wildcards Match multiple files

Batch Files
DateMath Add or subtract days from any date
GetDate.cmd Get todays date (any region, any OS)
GetTime.cmd Get the time now
GetGMT.cmd Time adjusted to Greenwich Mean Time
datetime.vbs Get Date, Time and daylight savings
deQuote Remove quotes from a string
DelOlder.cmd Delete files more than n days old
StampMe.cmd Rename a file with the date/time
Which.cmd Display full path to any command
DragDrop.cmd Drag and drop onto a batch script

Reference/How to
RUN commands Start-Run Snap-Ins and Control panel applets
Slow Browsing Speed up network browsing
Printing Printer connections and print drivers
Qchange Script to change Printer connections
Desktop Heap Memory configuration
Permissions Local vs Global workgroups
Long Filenames NTFS filename issues
WorkGroups Built-In Users and Security Groups
autoexec Run commands at startup
Recovery The Recovery Console
WinXP Registry User interface settings