SNOBOL (abbreviation for StriNg Oriented symBOlic Language ) is a programming language based on the processing of strings. It was defined between 1960 and 1962 in the Bell Laboratories . It remained confidential until its version 4 (SNOBOL4), which knew the celebrity thanks to its algorithm of filtering by very powerful motif ; On the other hand its syntax was very related to the technology of the punched cards , and a program in SNOBOL was illegible once written.
He strongly influenced UNIX at his birth, and his descendants are sed , awk and so Perl .
SPITBOL (abbreviation for SPeedy ImplemenTation of snoBOL ) is the compilable version of SNOBOL that appeared in 1971 for DEC machines .