Le 31/01/2016 03:12, Steve Litt a écrit :
#!/bin/sh
if test "$#" == "0"; then
lineno="1"
else
lineno=$1
fi
ip link | \
cut -d ' ' -f2 | \
grep ^w | \
sed -e "s/:\s*$//" | \
head -n $lineno | \
tail -n 1
Doesn't work out of the box.
If /usr/bin/test was invoqued you should write '-eq' instead of
'=='. But shell languages have non-standard built-ins. If /bin/sh points
to dash, like in Debian, then the built-in test would accept '='. I
guess '==' is a bashism (actually the adoption of a Cism by a shell
language). Replacing '==' by '=' just works.
Thanks for the script nevertheless :-)
Didier
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