[clue-talk] Bash scripting question

[G. Richard Raab]

On Wednesday 30 November 2005 09:13, Sean LeBlanc wrote:
> ssmtp -f me at me.com me at me.com me2 at me.com < msg
>
> Here's where I run into the problem: Can any bash/sh gurus tell me how I
> can I construct the message without writing to external file? The stream of
> msg needs to look like this:
>
> Subject: $1
> $1

Next to google, you will find the man pages the most important things going.

<MAN>
Here Documents
       This  type  of  redirection instructs the shell to read input from the 
current source until a line containing only word (with no trailing blanks) is 
seen.  All of the lines read up to
       that point are then used as the standard input for a command.

       The format of here-documents is:

              <<[-]word
                      here-document
              delimiter

       No parameter expansion, command substitution, arithmetic expansion, or 
pathname expansion is performed on word.  If any characters in word are 
quoted, the delimiter is the  result  of
       quote  removal on word, and the lines in the here-document are not 
expanded.  If word is unquoted, all lines of the here-document are subjected 
to parameter expansion, command substi‐
       tution, and arithmetic expansion.  In the latter case, the character 
sequence \<newline> is ignored, and \ must be used to quote the characters \, 
$, and `.

       If the redirection operator is <<-, then all leading tab characters are 
stripped from input lines and the line containing delimiter.  This allows 
here-documents within  shell  scripts
       to be indented in a natural fashion.
</MAN>



-- 
cheers
g.r.r.