Extract the subject of the signing certificate of a .mobileprovision file

dev-cert.sh

#!/bin/sh

# Extract the subject of the signing certificate of a .mobileprovision file

if [ -z "$1" ]
then
	echo "Usage: $0 [mobileprovision-file]"
	exit 1
fi

end=`grep -n --binary-files=text '</plist>' "$1"|cut -d: -f-1`

sed -n "2,${end}p" "$1"|xpath '//data' 2>/dev/null|sed -e '1d' -e '$d'|base64 -D| \
	openssl x509 -subject -inform der|head -n 1

You can extract the plist cleanly using openssl nowadays:

openssl smime -inform der -verify -noverify -in file.mobileprovision

https://stackoverflow.com/a/14379814/252627

Can be useful if you are trying to work with the file and data on Windows for example where all the others things are a lot harder to use or don't exist.