Script to manipulate .txt file

I need a windows xp script that can load a .txt file with several hundred lines and can do the following: 1. add a specified number of characters to the front of each line in the txt file 2. delete specified characters from the beginning or end of each line 3. Limit the number of characters on each line 4. Add random characters or numbers to beginning or end of each line example: here is original contents of txt file: yellowbanana redapple greenjacket here is the result with 3 characters (2g3) added to beginning: 2g3yellowbana 2g3redapple 2g3greenjacket here is result with character length limited to 4 yell reda gree here is result with 6 characters (abcdef) added to the end of each line: yellowbananaabcdef redappleabcdef greenjacketabcdef here is the result with random characters added to the beginning and end of each line: yellowbanana45523 redappleaggrq9 greenjackethd3436