source: projects/initscripts/tags/initscripts-8.91.0/sysconfig/network-scripts/ifdown-routes @ 1108

#! /bin/bash
#
# Drops static routes which go through device $1
if [ -z "$1" ]; then
    echo $"usage: ifup-routes <net-device> [<nickname>]"
    exit 1
fi

# The routes are actually dropped just by setting the link down, so nothing
# needs to be done

MATCH='^[[:space:]]*(\#.*)?$'

# Routing rules
FILES="/etc/sysconfig/network-scripts/rule-$1"
if [ -n "$2" -a "$2" != "$1" ]; then
    FILES="$FILES /etc/sysconfig/network-scripts/rule-$2"
fi

for file in $FILES; do
   if [ -f "$file" ]; then
       { cat "$file" ; echo ; } | while read line; do
           if [[ ! "$line" =~ $MATCH ]]; then
               /sbin/ip rule del $line
           fi
       done
   fi
done