On 2005-08-24 11:41, antenneX <[EMAIL PROTECTED]> wrote:
>Giorgos Keramidas <[EMAIL PROTECTED]> wrote:
>> sed -e 's/)[[:space:]]*$//' -e 's/^.*@//'
>>
>> or you can use as complex regular expressions as necessary to cut
>> specific parts of the line:
>>
>> sed -e 's/[EMAIL PROTECTED]([^)]*\))[[:space:]]*$/\1/'
>
> In fact, my very next script line uses sed(1) to add the TAB and the
> RHS to the sendmail access file:
> sed 's/$/ REJECT/g' tmpfile >> /etc/mail/access
>
> I'll bet my line could be incorporated with yours.
Sure. It's probably also a good idea to use mv(1) with a temporary file
residing under /etc/mail too, to make sure the update to the access map
is as close to being an ``atomic operation'' as possible:
% accesstmp=`mktemp /etc/mail/access.tmp.XXXXXX`
% if [ -z "${accesstmp}" ]; then
% exit 1
% fi
%
% ( cat /etc/mail/access ;
% awk '{whatever else here}' tmpfile | \
% sed -e 's/[EMAIL PROTECTED]([^)]*\))[[:space:]]*$/\1 REJECT/' ) >
"${accesstmp}"
% if [ $? -ne 0 ]; then
% exit 1
% fi
% mv "${accesstmp}" /etc/mail/access
% cd /etc/mail && make access.db
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