Bat file loop example

This is the easiest to understand. The other answers give close to no explanation on what the commands and flags do. For a javascript only kind of guy, batch files are not intuitive at all. Michel Keijzers Rendell tanyag Rendell tanyag 51 1 1 silver badge 1 1 bronze badge. If set is just a single period. So 1,1,5 would generate the sequence 1 2 3 4 5 and 5,-1,1 would generate the sequence 5 4 3 2 1.

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Related Hot Network Questions. Question feed. There does not exist while and do while loops as in other programming languages. Here, the list is the values for which for loop will be executed. Here in this program, we have 1, 2 and 3 in the list.

So, for every element of the list the for loop will be executed and following output is generated. In batch file programming, for loop can also be implemented through a range of values. More advanced example shows, how derived in FOR loop from a restricted files set data can be used to redirect batch execution, while saving the searched content to a file:.

Note, how long command strings are split into several code lines, and command groups are separated by parentheses. Every iteration or pass through the loop thereby processes a different file from the defined group which might equally have been any group, e. In the first example, we substitute text: the text string "old" is replaced by the text string "new" if, but only if, the text "old" is present in the file's name.