Hi Brandon, Thanks ... using the cat and pipe looks "cleaner" ... I will try that one ... thanks
On Fri, Jul 23, 2010 at 4:53 AM, Brandon McCaig <bamcc...@gmail.com> wrote: > On Wed, Jul 21, 2010 at 1:17 PM, newbie01 perl <newbie01.p...@gmail.com> > wrote: > > Does $_ contains the following values on each iteration? > > > > mail_smtp.pl > > -r > > ${MAILFROM} > > -s > > "$subject_line TEST EMAIL" > > supportm...@test.com > > < > > /tmp/test_email.txt > > Just to clarify the end of the command line: > > mail_smtp.pl -r ${MAILFROM} \ > -s "$subject_line TEST EMAIL" \ > supportm...@test.com < /tmp/test_email.txt > > The '< /tmp/test_email.txt' part is not extra arguments passed to the > script. That is a file redirection operator in the shell[1], used to > write the file to the script's standard input stream. The script > accepts an option -f to specify the file to retrieve the message data > from, but if none is specified then it defaults to - which is > basically an alias for STDIN.[2] > > The same thing can be accomplished with a pipe: > > cat /tmp/test_email.txt | mail_smtp.pl -r ${MAILFROM} \ > -s "$subject_line TEST EMAIL" supportm...@test.com > > So the script wouldn't see arguments equal to '<' or > '/tmp/test_email.txt'. The shell will handle those for it automatically. > > > [1] http://en.wikipedia.org/wiki/Redirection_(computing) > [2] perldoc -f open > > -- > Brandon McCaig <bamcc...@gmail.com> > V zrna gur orfg jvgu jung V fnl. Vg qbrfa'g nyjnlf fbhaq gung jnl. > Castopulence Software <http://www.castopulence.org/> < > bamcc...@castopulence.org> >