in reply to Re: portability / system / elegance
in thread portability / system / elegance

Would not the more "elegant" solution be to use a module that is designed for this purpose, File::Spec? From the documentation for the module, File::Spec requires an appropriate module (File::Spec::Cygwin, File::Spec::Unix, and File::Spec::Win32, among others), which alters such functions as catfile in an appropriate manner. Taking from ww's example (and setting the path value in a sub) using this code:

perl -MFile::Spec -le 'sub tshark_path { my @filename = qw( / usr bin +tshark ); if ( $^O eq q{MSWin32} ) { @filename = ( q{c:}, q{Program F +iles}, q{Wireshark}, q{tshark.exe} ); } return @filename; } my @file += tshark_path(); print File::Spec->catfile( @file );'

gives the following results when executed on Cygwin (under Win10), Win10, and linux:

# Result under Cygwin /usr/bin/tshark # Result under Win10 (Powershell) C:\Program Files\Wireshark\tshark.exe # Result from linux /usr/bin/tshark

Hope that helps.