Stephen Harris lists@spuddy.org wrote:
Bash was bigger than ksh in the non-commercial Unix world because of ksh88 licensing problems. Back in 1998 I wanted to teach a ksh scripting course to my local LUG, but AT&T (David Korn himsef!) told me I couldn't give people copies of the shell to take home.
AFAIR, ksh was OSS (but not using an OSI approved license) since 1997. Since 2001, ksh is under a OSI approved license.
Jörg