   bash is a unix shell written by brian fox for the gnu project as a free software replacement for the bourne shell (sh).   released in 1989, {{cite newsgroup | title = bash is in beta release! | author = brian fox (forwarded by leonard h. tower jr.) | date = june 8, 1989 | newsgroup = gnu.announce | url = http://groups.google.com/group/gnu.
1989_software Cross-platform_free_software Free_software_programmed_in_C GNU_Project_software Scripting_languages Text-oriented_programming_languages Unix_shells