Find empty Simplexes

for sim in Simplex_*; do cd $sim; if [ ! -s ATTEMPTS.txt ]; then echo $sim; fi; cd ..; done

Latex page setting definitions

Upload to Box via the command line

To send a directory recursively to Box from the command line, use:

find directoryname -type f -exec curl -1 --disable-epsv --ftp-skip-pasv-ip -u username:password --ftp-ssl --ftp-create-dirs --upload-file {} ftps://ftp.box.com/{} \;

Delete OAR* files

In order to remove all the OAR* files in directory tree use the following command.

find . -name "OAR*" -type f -delete

Auto-indent and clean up .f files

Open the file in emacs: emacs file.h

Select the entire file: C-x h

Auto-indent: C-M-\

Save the file: C-x s

Close emacs: C-x C-c

Making all citekeys in Papers universal

In the terminal, make the following command making sure the path is right:

sqlite3 '/Users/your_name/Documents/Papers2/Library.papers2/Database.papersdb'

Then in sqlite enter the following:

UPDATE Publication SET citekey = NULL;

Then ctrl-D to exit.

Running Mathematica scripts from command line

Math -noprompt -run "<<script.m"

Passing arrays in C++

There are three ways to pass an array to a function in C++:

`void by_value(const T* array) // const T array[] means the same

void by_pointer(const T (*array)[U])

void by_reference(const T (&array)[U])`

Source

Preparing asteroidbelt files

This is an example simple command to move all of the pl.dat files into a single directory from a set of runs.

for dir in Run*; do cp $dir/OUT/dump_pl.dat ../belt/100km-$dir-pl.dat; done

This how to loop through the files to input them into belt_statistics

for run in *pl.dat; do echo $run > temp; ./belt_statistics < temp; don

Tar and Gzip

To pack:
tar cvf - FILE-LIST | gzip -c > FILE.tar.gz

To unpack:
gunzip < FILE.tar.gz | tar xvf -

Creating .gitignore

The following command collects all of the untracked files within a git directory and moves them to .gitignore.

git status --porcelain | grep '^??' | cut -c4- >> .gitignore