Frank Küster wrote:
>> [EMAIL PROTECTED]:~/these/avancement_2008$ env -i latex avancement.tex
>> lstat(./latex) failed ...
>> ./latex: No such file or directory
>> This is pdfTeXk, Version 3.141592-1.40.3 (Web2C 7.5.6)
>
> I get a different result here:
>
> $ env -i latex Pinball_Wizard.tex
> This is pdfTeXk, Version 3.141592-1.40.3 (Web2C 7.5.6)
I've the same thing as Jerome
Note that the 'lstat(./latex) failed ...' message comes from latex itself
(try
strace env -i latex avancement.tex
to see that or observe that
env -i true
does not produce any message)
> Why does it find latex at all, on both system, when the environment
> variable PATH is to be ignored? And if the shell parses the commandline
> in advance and replaces "latex" by "/usr/bin/latex" internally, why does
> Jérôme get the error message
>
>> lstat(./latex) failed ...
>> ./latex: No such file or directory
Probably because 'env' use the libc exec*p (such as execvp) function:
>From the execvp manpage:
Special semantics for execlp() and execvp()
The functions execlp() and execvp() will duplicate the actions of the
shell in searching for an executable file if the specified filename
does not contain a slash (/) character. The search path is the path
specified in the environment by the PATH variable. If this variable
isn’t specified, the default path ":/bin:/usr/bin" is used. In addi‐
tion, certain errors are treated specially.
> And, just for curiosity, how can I see to what PATH is set when "env -i"
> is used?
>
> $ env -i echo $PATH
>
> gives
>
> /usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/home/frank/bin
>
> because $PATH is substituted by the shell before env starts. If I
> protect the variable from shell expansion, how can I make "someone" read
> it again:
>
> $ env -i eval echo '$PATH'
> env: eval: No such file or directory
env -i sh -c 'echo $PATH'
or even
env -i bash -c 'export'
to see all the environment (in the bash shell, so I've 3 variables)
env -i env
to see the real environment after env (nothing displayed for me)
> I guess Florent could answer this, but I haven't heard from him for ages.
Sorry, my name is Vincent :-)
> Regards, Frank
Regards,
Vincent
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