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Saturday 1 June 2013

Keep Environment Variables when Using SUDO

Recently we were developing a script in perl where we need to specify the environment variable UVM_LIBRARY_PATH = ../examples/UVM1.10, but when we run the code with sudo script/server, it doesn't run because that library path is not in root's env.

Its very easy to keep the env variables even while running the script with SUDO. All you need to do is modify your /etc/sudoers file

search following lines

Defaults    env_reset
Defaults env_keep = "COLORS DISPLAY HOSTNAME HISTSIZE INPUTRC KDEDIR \
LS_COLORS MAIL PS1 PS2 QTDIR USERNAME \
LANG LC_ADDRESS LC_CTYPE LC_COLLATE LC_IDENTIFICATION \
LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME
LC_PAPER LC_TELEPHONE LC_TIME LC_ALL LANGUAGE LINGUAS \
_XKB_CHARSET XAUTHORITY"

Add env variable eg. UVM_LIBRARY_PATH. in our case we have

Defaults    env_keep = "COLORS DISPLAY HOSTNAME HISTSIZE INPUTRC KDEDIR \
LS_COLORS MAIL PS1 PS2 QTDIR USERNAME \
LANG LC_ADDRESS LC_CTYPE LC_COLLATE LC_IDENTIFICATION \
LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME
LC_PAPER LC_TELEPHONE LC_TIME LC_ALL LANGUAGE LINGUAS \
_XKB_CHARSET XAUTHORITY UVM_LIBRARY_PATH"

Save your file and run the script.









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