CSCI 3294 (Unix Power Tools):
Sample Programs

Shell scripts

• hello: "Hello world" as a shell script.
• fcn-example: Simple example of defining and using a function.
• factorial-1 and factorial-2: Example of recursive function, two versions.
• powers-of-two: Example of loop and use of "bc".
• upmachines: Script to display names of all machines that are "up".
• lcname: Script to rename a file, changing all uppercase to lowercase.
• rename-files: Script to do mass rename of files, changing suffix.
• find-broken-links-1: find-broken-links-2: Script to find broken symbolic links, two versions.
• is-integer: Function to check string for integer using regular expression.
• factorial-1-with-check: Revised script for factorial using is-integer function.
• factorial-1-with-check-alt: Revised script for factorial checking for non-integer another way.
• procmail-log-summary: Script to summarize procmail log (sample input data).
• grep-deductions: Script to collect and add up deductions/additions for grade (sample input data).
• sumpoints: Script to collect and add up partial scores (sample input data).

Configuration files

vim configuration files

• "Main" configuration file (goes in $HOME/.vimrc).
• Configuration file for editing code (goes in $HOME/.vim/vimrc-for-code, start vim with vim -u $HOME/.vim/vimrc-for-code).
• Common options, sourced by both of the above (goes in $HOME/.vim/vimrc-base).

Other configuration files

• simple.screenrc Minimalist configuration file for screen.
• simple.procmailrc Sample configuration file for procmail.
• simple.spamassassin.user_prefs Sample configuration file for spamassassin.
• simple.muttrc Sample configuration file for mutt. Also may want mutt-macros this file of macro definitions.
• tmail.muttrc Sample configuration file for accessing TMail spam folder with mutt.

make examples

• Sample makefile Makefile for compiling C programs.
• Makefile example: Source code files and Makefile: directory.
• Makefile example revised, to generate prerequisites automatically: Source code files and Makefile: directory.
• Example of using Makefile for something other than compiling, namely generating various versions of PDF from LaTeX source: directory.

gnuplot examples

• Plots of data showing how accuracy of Monte-Carlo approximation of pi changes depending on function used to generate "random" sequences: directory, with README.txt describing contents.
• Plot illustrating using numerical integration to estimate pi: directory, with README.txt describing contents.

LaTeX

• "Sampler" example, demonstrating basic(?) features: directory, with README.txt describing contents.
• Example of various ways of creating diagrams and plots: directory, with README.txt describing contents.

CGI

• Source code for various simple CGI scripts (directory).
• Page using sample scripts here.

ncurses

• Simple self-contained examples: hello.c, center-lines.c, echo-key.c.
• Library functions for use with remaining programs, and more examples using them: mylib.h, attrib.c, colors.c.
• Text version of Conway's game of life: conway.c.
• Example of using menus: menu-example.c.
• Makefiles: Makefile, Makefile-base, Makefile-depend.

Other files

• (Not an example-for-class of a shell script, but potentially useful for turning in programming assignments.)

  Script to mail files for homework submission mail-files. To use this script, put a copy in your directory and use chmod u+x to make it executable. You can then use it to mail me one or more files containing source code, for example:

  	~/mail-files pgm1.c pgm2.c ....
  	

  It prompts for homework number and text to include as the body of the message, and sends a Cc of the message to your username at trinity.edu.