@Aqsaqal celebrating his latest PragProg release -
Seven Obscure Languages in Seven Weeks

Let seven older, obscure languages open your eyes to new ways of thinking about programming, and change the way you code today.

http://pragprog.com/titles/dzseven
#Forth #Occam #APL #Simula #SNOBOL #Starset #m4 #7in7

@pragprog @Aqsaqal #m4 is still the only way to *portably* script certain things in #Unix that the standard #POSIX shell can’t handle.

Temporary files, for example: it’s the only POSIX-compliant way to call the mkstemp() function without compiling your own C program.