Can someone teach me how to insert a string to every line of a textfile and know where to start and stop regardless how many lines are there in the textfile? For example - the textfile goes like this: asd2qddsf.zip asdggfdfg.zip asdasd.zip .......etc Then the final product should give: del zcxvzxcvz.zip del asdf14dsf.zip del Dfqq23fsdf.zip Adding a "del " string in front of everyline from the first line till the last without adding it to the empty lines below... Is that possible using batch, dos or windows? Please Help. Thanks. Please teach me how to use the program if it is possible to make.

What is it that you are trying to accomplish? It sounds like you want to edit existing text files by adding del ---- to them. If you want to know how to delete all files named ----.ext then use FOR %%A IN (*.EXT) DO DEL %%A where EXT is the extension of the file you wish to delete.