In time-critical applications, it is worthwhile to avoid splitting into more fields than necessary. Thus, when assigning to a list, if LIMIT is omitted (or zero), then LIMIT is treated as though it were one larger than the number of variables in the list; for the following, LIMIT is implicitly 3:
($login, $passwd) = split(/:/);
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and by using the a2p converter,
$ a2p <<< '{ SUM+=$5 } END {printf "%d\n", SUM}'
#!/usr/bin/perl
eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
if $running_under_some_shell;
# this emulates #! processing on NIH machines.
# (remove #! line above if indigestible)
eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_0-9]+=)(.*)/ && shift;
# process any FOO=bar switches
http://perldoc.perl.org/functions/split.html
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In time-critical applications, it is worthwhile to avoid splitting into more fields than necessary. Thus, when assigning to a list, if LIMIT is omitted (or zero), then LIMIT is treated as though it were one larger than the number of variables in the list; for the following, LIMIT is implicitly 3:
($login, $passwd) = split(/:/);
=====
and by using the a2p converter,
$ a2p <<< '{ SUM+=$5 } END {printf "%d\n", SUM}'
#!/usr/bin/perl eval 'exec /usr/bin/perl -S $0 ${1+"$@"}' if $running_under_some_shell; # this emulates #! processing on NIH machines. # (remove #! line above if indigestible)
eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_0-9]+=)(.*)/ && shift; # process any FOO=bar switches
while (<>) { ($Fld1,$Fld2,$Fld3,$Fld4,$Fld5) = split(' ', $_, -1); $SUM += $Fld5; }
printf "%d\n", $SUM;
So this behavior is confirmed.