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added a safety check

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Culsu
2020-11-29 22:20:46 +01:00
parent 61ae2100c3
commit f59920e119
1 changed files with 1 additions and 1 deletions
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jaildk
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@@ -782,7 +782,7 @@ jaildk_create() {
jaildk_clone -s $src -d $jail -o $srcversion -n $newversion
# some perl magic to extract the hostname (if any) from /etc/jail.conf - and write it into the jails rc.conf
jailhostname=$(cat /etc/jail.conf | tr -d '\t\r\n ' | perl -ne '$_ =~ /.*'"$newjail"'(\{(?:\{.*\}|[^{])*\})|\w+/; print $1;' | grep -oE 'hostname=[^;]+' | cut -d= -f2)
sed -iE 's/^hostname.*$/hostname="'"$jailhostname"'"/' $j/etc/$newjail/local-etc-$newversion/rc.conf
[ -n "$jailhostname" ] && sed -iE 's/^hostname.*$/hostname="'"$jailhostname"'"/' $j/etc/$newjail/local-etc-$newversion/rc.conf
}