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udhcpc: tweak math shell style with the metric var

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Some shells (like dash) are lame and omit the POSIX increment/decrement
feature (because it is listed as optional).  Tweak the shell script to
work in all POSIX variants.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2013-02-27 01:05:34 -05:00
parent 39b8fb41c5
commit 9fed24c031
1 changed files with 2 additions and 1 deletions
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3
examples/udhcp/simple.script
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@ -29,7 +29,8 @@ case "$1" in
metric=0 metric=0
for i in $router ; do for i in $router ; do
echo "Adding router $i" echo "Adding router $i"
route add default gw $i dev $interface metric $((metric++)) route add default gw $i dev $interface metric $metric
: $(( metric += 1 ))
done done
fi fi