>>>>> "a" == anne001 <anne@wjh.harvard.edu> writes:
a> what does #!/usr/bin/ruby -w do?
it make ruby more verbose
moulon% ruby -e 'p (1)'
1
moulon%
moulon% ruby -we 'p (1)'
-e:1: warning: (...) interpreted as grouped expression
1
moulon%
a> is #!/usr/bin/ruby -T1 the same as -T with $SAFE=1?
'#!/usr/bin/ruby -T' is the same than '#!/usr/bin/ruby -T1'
#!/usr/bin/ruby -T1
set $SAFE = 1 when ruby process the argument
a> Why not always use -T with a safety level of at least 1?
Except with -T0, if you use -T you have fatally a safety level of at
least 1
--
Guy Decoux