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$ which doxygen
/home/gauthier/bin/doxygen
$ $(which doxygen) -v
1.8.13
$ doxygen -v
1.8.11 # <- ???
$ doxygen
error: Doxyfile not found and no input file specified!
Doxygen version 1.8.11
Copyright Dimitri van Heesch 1997-2015
# ... doxygen's help
$ type -a doxygen
doxygen is /home/gauthier/bin/doxygen
doxygen is /home/gauthier/bin/doxygen
doxygen is /usr/bin/doxygen

I'm trying to setup a new version of doxygen, to use in parallel to the one already on my machine.

I downloaded binaries, placed them somewhere in /opt, and created a symlink to them in my ~/bin, which is in my PATH.

As seen in the terminal paste above, running doxygen does not seem to call to the same binary found by which doxygen.

What might be going on?

Gauthier
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  • What do you get if you do `type doxygen`? – ctrl-alt-delor Aug 16 '17 at 11:04
  • @richard 1.8.11, see my edit. – Gauthier Aug 16 '17 at 11:07
  • Actually, try `type -a` to see all resolutions of a command...just in case there are any like-named aliases, functions, etc. – B Layer Aug 16 '17 at 11:07
  • @BLayer: added the result of `type -a doxygen`. There's a double entry, I wonder why (but probably not a problem, I guess?) – Gauthier Aug 16 '17 at 11:11
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    What do you see when you run `hash -t doxygen`? – Eric Renouf Aug 16 '17 at 11:13
  • Hmm. Do you have your home dir in your PATH twice? (You're right, though, that's not likely to be related to your issue.) – B Layer Aug 16 '17 at 11:13
  • @EricRenouf: Ha! Only `/usr/bin/doxygen`. – Gauthier Aug 16 '17 at 11:14
  • @BLayer: I do have `~/bin` twice, yes. I use the same `.bashrc` on different systems, it seems that one (Ubuntu) adds `~/bin` by itself, others don't. I'm not sure where else it's added, I have it done only once in my `.bashrc`. – Gauthier Aug 16 '17 at 11:16
  • @richard: duplicate correct, thanks! I didn't know about hash. – Gauthier Aug 16 '17 at 11:19
  • @Gauthier It's pretty harmless. If it's annoying you can, of course, do a simple check for that in your path and only add conditionally in the later-loading config file(s). I do that in my own init. – B Layer Aug 16 '17 at 11:23
  • @BLayer It was added in `~/.profile`, which was created by default. Apparently, Debian and brethren do this. Since I mean to use my `~/.bashrc` in other systems, I commented it out in `.profile`. – Gauthier Aug 16 '17 at 11:41
  • @Gauthier That works! :) – B Layer Aug 16 '17 at 11:46

1 Answers1

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and created a symlink to them in my ~/bin, which is in my PATH.

The order in PATH is relevant. Make sure to put your personal bin dir at the start; something like this:

export PATH="${HOME}/bin:${PATH}"

You should be able to see the lookup order using which -a <command>.

Murphy
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