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https://github.com/notwa/rc
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24 lines
656 B
Perl
24 lines
656 B
Perl
#!/usr/bin/env perl
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### @ shelly
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### (perl 5) invoke the first shell found from a list of shells
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### as an interactive, non-login shell. arguments are ignored.
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use strict;
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use Env qw(@PATH);
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use File::Spec;
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# arbitrary ordering, feel free to change:
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my @shells = <zsh osh fish ion bash ash busybox ksh tcsh csh rc dash>;
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for my $s (@shells) {
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for my $p (@PATH) {
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my $fp = File::Spec->join($p, $s);
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my @argv = $s eq "busybox" ? ("sh", "-i") : ($s, "-i");
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exec {$fp} @argv if -f $fp and -e "$fp";
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#print STDERR "fail: $fp\n";
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}
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}
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print STDERR "$0: gave up; invoking `sh` without arguments...\n";
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exec {"sh"} "sh";
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