On 03/22/2017 03:39 PM, Julian H. Stacey wrote: > > cd /usr/local/mailman/lists > config_list -o - bg | egrep -v '^[[:space:]]*#|^$' # OK, but not ideal > config_list -o - bg | egrep -v '^[[:space:]]*#|$' # Empty.
Because '^[[:space:]]*#|$' matches '^[[:space:]]*#' or '$' i.e. everything with an end of line > config_list -o - bg | egrep -v '^[[:space:]]*[#$]' # Blank lines remain. Because [#$] is a character class matching literally '3' or '$' not end of line. > config_list -o - bg | egrep -v '^[[:space:]]*[#$]|^$' # OK > config_list -o - bg | egrep -v '^[[:space:]]{0,}[#$]' # Blank lines remain. > As above. > Does some other Unix have a better worded or more verbose RE definition, You don't need to be concerned about leading whitespace because config_list -o doesn't write comments with lkeading whitespace. config_list -o - bg | egrep -v '^(#|$)' which matches and ignores any line that starts with # or is empty. This is similar to your '^[[:space:]]*#|^$' example without the unneeded [[:space:]]* except it says 'beginning of the line followed by either # or end of line' instead of 'beginning of line followed by # or begining of line followed by end of line' -- Mark Sapiro <m...@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org