Useful Scripts

This is just a grab-bag of a bunch of scripts of I wrote over time for various purposes. In some cases, the term "useful" is probably an exaggeration.

• functions.bash

  A set of bash functions for various things. Notable ones include

  • bldpath: adds a directory to a path-type variable (PATH, MANPATH, LD_LIBRARY_PATH, etc.) only if that directory is not already present.

    Various functions build on bldpath to provide useful operations for common path variables.

  • every: executes a command every X seconds

  • with: execute a command in a different directory, restore current directory after

  • which: extends the which command to find and print functions, aliases

  • sum_size: print just the sum of the sizes of the files given

  • comp: do completion expansion for a command, as though hitting tab on the command line -- useful for scripts

• file_dupes.py

  Searches a file directory tree for files that are duplicates (contents are identical). Checks file sizes first, if it finds two or more files with the same size it runs md5sum to get a checksum and checks whether the results are identical.

• dopercent.bash

  dopercent.bash NN command...

  Randomly executes a command, with probability NN percent. Useful for spot checks, simulations, etc.

• report_class_hier.py

  Handy script to scan one or more Python source files and report classes that are defined in them, with the parent-child relationships displayed with indenting.