On Wed, Sep 18, 2019 at 6:43 PM Clemens Ladisch <clem...@ladisch.de> wrote:
> Peng Yu wrote: > > Is there a better way to just return an exit status of 0 for > > a sqlite3 DB file and 1 otherwise? > > Extract the magic header string from a known DB file: > > dd bs=16 count=1 < some.db > sqlite3-signature > > Then you can compare it against the beginning of the file: > > cmp --bytes=16 sqlite3-signature /tmp/tmp.erZ5aS6PUX.sqa > /dev/null > [ $? = 0 ] && echo SQLite DB I'm actually surprised sqlite3[.exe] itself doesn't have a more to do that. I tried using it to open a non-DB file, and it opens in interactive mode, with no error or warning, wether I use -bail or not. I was expecting a hard error. You'd think sqlite3[.exe] is the best suited to figure out if a file is a valie SQLite database or not, and exit with a non-zero status if it's not (possibly using a given CLI arg for that behavior). That would be a useful addition, if it's not already possible in a way I can't find. Parsing the 100 bytes header would do and be super fast. --DD _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
