cmd.exe: Built-in commands

cls to clear the console.

copy to copy files from one directory to another

date prints the current date and allows to enter a new one

del deletes one or more files.

dpath: to add a list of directories to be searched for files with type.

echo to print text (information, warnings etc.) from a batch file.

rem to comment a line (for example in a batch file).

rmdir to remove directories

start to run another process or command.

time prints the current time and allows to enter a new one

type displays the content of a file or files.

vol to display disk volume labels and serial numbers.

copy

Updating a file's timestamp

The following command updates a file's timestamp, much as touch on Unix does. However, it won't create the file if it does not exist.

c:\> copy someFile.txt +,,

exit

exit quits cmd.exe or terminates a batch file, see here.

fc

@rem
@rem  Compare files, but do not print anything
@rem  if files are equal
@rem
@rem  See http://superuser.com/a/991129/16610
@rem

@fc   %1 %2 > %temp%\fc.out || cat %temp%\fc.out

Github repository about-cmd.exe, path: /commands/fc/print-nothing-if-equal.bat

for

for /l to create sequences of numbers.

for /f

forfiles

forfiles /s /p %cd%\..\.. /m *.bat  /c "cmd /c echo file=@file, ext=@ext, path=@path, size=@fsize etc"

Github repository about-cmd.exe, path: /commands/forfiles/p-m-c.bat

if

if can be used to conditionally execute parts in a batch file.

mode

@rem  the width and height of the cmd.exe window
@rem  can be changed with:

@mode 80,10

Github repository about-cmd.exe, path: /commands/mode/changeWidthAndHeight.bat

schtasks

schtasks.exe can be used to schedule tasks.

set

set /a allows to evaluate a mathematical expression and assign it to a variable.

set /p to get input from a user and assign it to an environment variable.

setlocal

setlocal localizes changes that are made to the environment.

Misc

#
#  Are environment variables expanded?
#
#  What happens with quoted strings?
#
#  Etc
#
#  call
#
#    what_does_cmd_pass_to_script.pl  %TEMP% "foo bar" ^abe ^^cde x'fo
#

use warnings; use strict;

print "\n";

for my $argv (@ARGV) {

  print "$argv\n";

}

Github repository about-cmd.exe, path: /misc/what-does-cmd-pass-to-script.pl