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September Morn Update

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Ingy döt Net 2019-09-12 10:33:56 -07:00
parent 4e2d22a71d
commit aac6731f2c
6856 changed files with 141342 additions and 21127 deletions
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16
Task/Execute-a-system-command/Perl/execute-a-system-command.pl
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@ -1,13 +1,9 @@
my @results = qx(ls);
# runs command and returns its STDOUT as a string
my @results = `ls`;
# ditto, alternative syntax
my @results = qx(ls); # run command and return STDOUT as a string
system "ls";
# runs command and returns its exit status; its STDOUT gets output to our STDOUT
my @results = `ls`; # same, alternative syntax
print `ls`;
#The same, but with back quotes
system "ls"; # run command and return exit status; STDOUT of command goes program STDOUT
exec "ls";
# replace current process with another
print `ls`; # same, but with back quotes
exec "ls"; # replace current process with another