These are my links for 8 ago 2013 through 12 ago 2013:

• Shuttle | A simple SSH shortcut menu for OS X – A simple SSH shortcut menu for OS X
• Unix FAQ/shell Index –
• Portable Shell – Autoconf – When writing your own checks, there are some shell-script programming techniques you should avoid in order to make your code portable. The Bourne shell and upward-compatible shells like the Korn shell and Bash have evolved over the years, and many features added to the original System7 shell are now supported on all interesting porting targets.