Best way to capture output from system command to a text file?
Same as MVS's answer, but modern and safe.
use strict;use warnings;open (my $file, '>', 'output.txt') or die "Could not open file: $!";my $output = `example.exe`; die "$!" if $?; print $file $output;easier
use strict;use warnings;use autodie;open (my $file, '>', 'output.txt');print $file `example.exe`;if you need both STDOUT and STDERR
use strict;use warnings;use autodie;use Capture::Tiny 'capture_merged';open (my $file, '>', 'output.txt');print $file capture_merged { system('example.exe') };
When you want recirect output permanently, you can do:
#redirect STDOUT before calling other functionsopen STDOUT,'>','outputfile.txt' or die "can't open output";system('ls;df -h;echo something'); #all will be redirected.