# Let tex search a file inside a folder?

As mentioned in my last question i have problems with \input command and relative paths which getting wrong. I also tried the import-package but don't get this to work.

Till now I just have two shared preambles at different locations so each file can find it, but it is not so great when having to edit two files.

Is there may a function in tex that I give it a root folder and just let tex search inside this folder for a specific file (tikz_packages.tex for example) and so don't have to argue with the problem with the relative paths.

Or another option may be give him two paths. When he can't find the first path he should just use the second path, then the third path till he find it.

If I get it correct there is some command like this which first look in the first path, then the seconde and so on but only for graphics:

\graphicspath{{figures/}{../figures/}{C:/Users/me/Documents/project/figures/}}


Is something like this possible in latex? Since my folder is not so big the searching should not take much time.

Many thanks.

• With windows, right click the file, select Properties, then copy the Location (full path name). Then it won't matter where you start. Aug 18 '18 at 14:01
• You could use \IfFileExists{<relative path 1>}{\input{<relative path 1>}}{\input{<relative path 2>}}, if there are two relative paths where your file could be. If there are more possibilities, you can probably nest these if ... then statements.
– Max
Aug 18 '18 at 14:49
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• I finally used the soultion provided by @Max
– SRel
Sep 13 '18 at 9:42
• @SRel Do you want me to write an answer?
– Max
Sep 13 '18 at 10:11

When I have files that should be found from various locations and from various other files I normally put them in the standard search path of my tex system(s).

Sometimes I put them in texmf-local, but for many projects this is often a project specific texmf tree. The files are then e.g. in

    project-texmf/tex/latex/....


The tree is activated with (in a current texlive, miktex has an equivalent command) with

    tlmgr conf auxtrees add path/to/project-texmf


This avoids a lot hassle with relative input pathes, but it requires that the files have across all my texmf trees unique names. So generic names like "bibliography.bib" or "mypackages.tex" should better be avoided.

Okay I don't know excatly why but i made a MWE and try using the import-package again and it seems to work now oO.

My MWE:

folder structure:

Path_test/main.tex
/images/image.tex
/preamble/packages.tex
-tikz_packages.tex


main.tex:

\documentclass{scrbook}
\usepackage{import}
\begin{document}
\input{preamble/packages.tex}  %% works
\input{images/image.tex}  %% don't work
\subimport{images/}{image.tex}  %% work
\end{document}


image.tex:

\input{../preamble/tikz_packages.tex}


tikz_packages.tex:

I am in tikz_packages