Bourne shell

Overview

The Bourne shell is the traditional Unix shell originally written by Stephen Bourne.

v7 il the first official releae on UNIX systems and is the reference for SUS 03 spécifications

NOTICE Shell on SUS 03 and above is not strictly Bourne Shell v7 but an improved version

; & ( ) | < > newline space tab newline

; & && || newline

for name [in word …] do list done
case word in [pattern [ | pattern ] … ) list ;;] … esac
if list then list [elif list then list] … [else list] fi
while list [do list] done
( list )
{ list }

${parameter} sequence of letters, digits or under- scores (a name), a digit, or any of the characters * @ # ? - **$** !
${parameter-word}
${parameter=word}
${parameter?word}
${parameter+word}