Misc. Tool Tips

LaTeX
Binutils

LaTeX

Merge PDF files (*nix)

gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite \
   -sOutputFile=merged.pdf f1.pdf f2.pdf ...

Add wide floats (figures, tables, etc.) into latex with \makebox

\begin{figure}
  \centering
\makebox[\textwidth]{%
  \subfloat[sub title1]{
    \label{fig:subfig1}
    \includegraphics[\width=0.6\textwidth]{subfig1}}
  \subfloat[sub title2]{
    \label{fig:subfig2}
    \includegraphics[\width=0.6\textwidth]{subfig2}}
}
\end{figure}

Binutils

Find files with restrictions
```
find . -path './.*' -prune -o -perm 700 -type f ! -name \*.py ! -name \*.pyc -print
```
- -prune is used to exclude some of the path, such as .hg, .svn, etc.
- ! is logical NOT on the following statement.
- The last -print is essential, unless find will print the name of excluded directory (.hg for example). Referred to "Common Gotcha" section of this for more detailed explanation.
Copy files according to "find" results. There are several ways to do this:
- Use -exec option of find, but may have performance issue if the number of resulting files is large.
```
find . -name "test" -exec cp "{}" /dest/directory \;
```
- Bridge find and cp with xargs, no potential performance issue.
```
find . -name "test" -print0 | xargs -0 -I{} cp "{}" /dest/directory
```
- A little variant to the last approach, only works with GNU cp
```
find . -name "test" -print0 | xargs -0 cp -t /dest/directory
```

Misc. Tool Tips

Table of Contents

LaTeX

Binutils