Conditionally perform a command for a range of numbers.
Syntax FOR /L %%parameter IN (start,step,end) DO command Key start : The first number step : The amount by which to increment the sequence end : The last number command : The command to carry out, including any command-line parameters. %%parameter : A replaceable parameter: in a batch file use %%G (on the command line %G)
So (20,-5,10) would generate the sequence (20 15 10)
(1,1,5) would generate the sequence 1 2 3 4 5
The numbers must all be within the range of 32 bit signed integer numbers (-2,147,483,648 through 2,147,483,647)
In addition to integer numbers, hex and octal numbers can also be compared within certain limits.
Count from 1 up to 5
FOR /L %%G IN (1,1,5) DO echo %%G
Non-numeric lists can use a standard FOR command:
FOR %%G IN (Sun Mon Tue Wed Thur Fri Sat) DO echo %%G
FOR is an internal command.
"A great deal of what makes life congenial is a sequence of little white lies" - Philip Terzian
FOR - Loop commands
FOR - Loop through a set of files in one folder
FOR /R - Loop through files (recurse subfolders)
FOR /D - Loop through several folders
FOR /F - Loop through items in a text file
FOR /F - Loop through the output of a command
FORFILES - Batch process multiple files
GOTO - Direct a batch program to jump to a labelled line
IF - Conditionally perform a command
Powershell: ForEach-Object - Loop for each object in the pipeline / While
Equivalent bash command (Linux): for - Expand words, and execute commands