linux - Environment variable with spaces in a string - How to use them from /proc/pid/environ -

i set variable spaces in string new bash:

var='my variable spaces' /bin/bash 

and if want start new bash same environment, like:

env=$(cat /proc/self/environ | xargs -0 | grep =) env -i - $env /bin/bash 

but thing is, in /proc/self/environ, variable without quotes. last command throws a: env: variable: no such file or directory

how can work around limitation?

ps: simplified version of following issue: https://github.com/jpetazzo/nsenter/issues/62

i think answer here not use shell script set things up. using higher-level language makes easier parse /proc/<pid>/environ useful. here's short example:

#!/usr/bin/python  import os import sys import argparse   def parse_args():     p = argparse.argumentparser()     p.add_argument('pid')     p.add_argument('command', nargs=argparse.remainder)     return p.parse_args()   def main():     args = parse_args()      env = {}     open('/proc/%s/environ' % args.pid) fd:         envspec in fd.read().split('\000'):             if not envspec:                 continue              varname, varval = envspec.split('=', 1)             env[varname] = varval      print env     os.execvpe(args.command[0], args.command, env)   if __name__ == '__main__':     main() 

put in file called env-from, make executable, , can run:

env-from <pid> bash 

and you'll shell using environment variables specified process.