On Thu, May 30, 2019 at 5:40 AM Tim Rühsen <tim.rueh...@gmx.de> wrote: > > The shebang line here reads > > #!/usr/bin/env -S perl -I . > > /usr/bin/env is part of coreutils ans should know '-S', even on Debian > stretch. > > $ /usr/bin/env --version > env (GNU coreutils) 8.30 > > @Jeff, what does '/usr/bin/env --help' show ? Or 'man env' ?
$ /usr/bin/env --version env (GNU coreutils) 8.26 Copyright (C) 2016 Free Software Foundation, Inc. ... $ /usr/bin/env --help Usage: /usr/bin/env [OPTION]... [-] [NAME=VALUE]... [COMMAND [ARG]...] Set each NAME to VALUE in the environment and run COMMAND. Mandatory arguments to long options are mandatory for short options too. -i, --ignore-environment start with an empty environment -0, --null end each output line with NUL, not newline -u, --unset=NAME remove variable from the environment --help display this help and exit --version output version information and exit A mere - implies -i. If no COMMAND, print the resulting environment. GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Full documentation at: <http://www.gnu.org/software/coreutils/env> or available locally via: info '(coreutils) env invocation' jwalton@tinkerboard:~/cryptopp$