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Postings from January 2012
On Mon, Jan 16, 2012 at 8:14 AM, Rafael Garcia-Suarez <rgs@consttype.org>wrote: > I know that perlrun states this : > > If the C<#!> line does not contain the word "perl", the program named after > the C<#!> is executed instead of the Perl interpreter. This is slightly > bizarre, but it helps people on machines that don't do C<#!>, because they > can tell a program that their SHELL is F</usr/bin/perl>, and Perl will then > dispatch the program to the correct interpreter for them. > > That feature can be questioned, esp. for Unix-like platforms, but it's > not my point there; if I look at the code that execs the program > specified on the #! line, I see that it also looks for the characters > "indir" there. And indeed, that disables the exec : > > ~§ cat sb.pl > #!/bin/cat > print "version $]\n"; > > ~§ perl sb.pl > #!/bin/cat > print "version $]\n"; > > ~§ cat sb2.pl > #!/bin/cat indir > print "version $]\n"; > > ~§ perl sb2.pl > version 5.014001 > > According to git-blame, this has been this way forever After perl 5.0 alpha 6 8990e3071044a96302560bbdb5706f3e74cf1bef But no later than perl 5.0 alpha 8 2304df62caa7d9be70e8b8bcdb454e139c9c103d > and it's not documented. And it wasn't back then either. (OMG! the Perl docs consisted of one file!) - EricThread Previous | Thread Next