Livre : Expressions régulières, Syntaxe et mise en oeuvre :
ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)
Unix
Unix v6
echo(1)
echo echo arguments [ arg ... ] writes its arguments in
order as a line on the standard output file. It is mainly
useful for producing diagnostics in command files.