Question: add a CC list to `mail` command
in [Shell]
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From: lihao on 15 Mar 2010 10:29 Hi, folks: I want to send an email to a bunch of people with the mail CC list, the list is not small and is expecting frequently change in the future. so I hope to maintain this list in a text file with one email per line.i.e.: bash~ cat emails.lst user1(a)example.com user2(a)example.com user3(a)example.com ....... user100(a)email.com --- Is there a better `bash` way to put this list in the CC line, currently I am using something like: LIST="$(tr '\n' ',' <emails.lst)" mail -s "A test mail" -c "${LIST%,}" admin(a)example.com <<END_EMAIL blabla... END_EMAIL BTW. is there any limit on the length of the CC list? many thanks, lihao
From: Thomas 'PointedEars' Lahn on 15 Mar 2010 19:12 lihao wrote: > Hi, folks: I want to send an email to a bunch of people with the mail > CC list, the list is not small and is expecting frequently change in > the future. so I hope to maintain this list in a text file with one > email per line.i.e.: > > bash~ cat emails.lst > user1(a)example.com > user2(a)example.com > user3(a)example.com > ...... > user100(a)email.com > --- > > Is there a better `bash` way to put this list in the CC line, > currently I am using something like: > > LIST="$(tr '\n' ',' <emails.lst)" > mail -s "A test mail" -c "${LIST%,}" admin(a)example.com <<END_EMAIL > > blabla... > > END_EMAIL LIST=$(cat emails.lst) LIST=${LIST//' ',} mail -s 'A test mail' -c "${LIST%,}" admin(a)example.com <<END_EMAIL blabla... END_EMAIL ${x//foo/bar} replaces all occurences of `foo' in $x with `bar'. See `man ${_SHELL:-sh} | less -p '^[[:space:]]*Parameter[[:space:]]'. It is a bit more the `bash' way, but whether that is better depends. Both `tr' and `cat' are part of the GNU coreutils, and ${...//.../} probably requires a newer GNU bash. > BTW. is there any limit on the length of the CC list? Yes, the command line length. I would be using Bcc (-b) or use a real mailing list or another sendmail wrapper like PHP's mail() instead. PointedEars
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