citadel/migrate_aliases.sh

   1 #!/bin/bash
   2 if test -z "$1"; then
   3     echo "Usage: $0 mail.aliases"
   4     exit
   5 fi
   6
   7 CITALIAS=$1
   8 if test -f /etc/aliases; then
   9 # don't work with temp fils, so they can't get hijacked.
  10 # sorry users with megabytes of aliases.
  11     NLINES=`cat /etc/aliases | \
  12         sed -e "s; *;;g" \
  13             -e "s;\t*;;g" | \
  14         grep -v ^root: | \
  15         grep -v ^# | \
  16         sed -e "s;:root;,room_aide;" \
  17             -e "s;:;,;" |wc -l`
  18
  19     for ((i=1; i <= $NLINES; i++)); do
  20         ALIAS=`    cat /etc/aliases | \
  21         sed -e "s; *;;g" \
  22             -e "s;\t*;;g" | \
  23         grep -v ^root: | \
  24         grep -v ^# | \
  25         sed -e "s;:root;,room_aide;" \
  26             -e "s;:;,;" |head -n $i |tail -n 1`
  27         ORG=`echo $ALIAS|sed "s;,.*;;"`
  28         if grep "$ORG" "$CITALIAS"; then
  29             echo "Ignoring Alias $ORG as its already there"
  30         else
  31             echo "$ALIAS" >>$CITALIAS
  32         fi
  33     done
  34 else
  35     echo "no /etc/aliases found."
  36 fi