Splitting a multi-line environment variable into lines

Question

I have the following problem: I execute a windows batch file on a Jenkins server and have to split a multi-line environment variable (set vía a Jenkins parameter) into single li

Answer 1

Well as reflex I propose you the following solution:

If python is installed (if not ... up to you to install it .. it is usefull ;-) )

in your batch line : Python MyScriptToExecuteEachLinesFromVar.py varname "myprog.exe -baz 0 -meow"

With the script content:

import sys,os  # libraries used : system and operating system

if len(sys.argv)>0:                   # if arguments provided (at least the variable name)
  varname = sys.argv[1]               # the variable name is the second argument (0=script)
  prefix = " ".join(sys.argv[2:])     # the list of all others are the prefix.

  lines = os.environ[varname].split('\n')  # get the var and split lines 

  for f in lines : 
    print "execute:", prefix, f
    os.system(prefix+" "+f)                # execute each line with the given prefix.

Hope it helps.