Changing directory with a twist
Oleg Broytmann
phd at phd.russ.ru
Tue Mar 14 11:59:12 EST 2000
On Tue, 14 Mar 2000, Gaetan Corneau wrote:
> > What OS? UNIX?
> Sorry: NT and Linux
Don't know anything about NT. On UNIX (Linux is UN*X too) you need to
pass the name of directory back to shell, and the shell have to be prepared
to get the name and chdir. Example:
in shell:
eval cd "`myprog.py`"
^ ^ these are backticks, not apostrophs
in myprog.py:
print "/usr/local/etc"
sys.exit()
Please note - I am paranoid sysadmin :) so:
1) I do not recommend eval `anyprog.py` - if anyprog.py returns a trojan
shell script you'll be in trouble;
2) I do recomment to wrap the result in double quotes - to pass the output
to cd as 1 parameter, thus you can return a directory name with spaces;
anyway I do not recomment have directory names with special character -
they may be evaluated by eval.
Oleg.
----
Oleg Broytmann Foundation for Effective Policies phd at phd.russ.ru
Programmers don't die, they just GOSUB without RETURN.
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