Unpack a war file to a destination folder without verbose output
Solution 1:
You can unzip quietly, just use the -qq option (see man unzip)
-q perform operations quietly (-qq = even quieter). Ordinarily
unzip prints the names of the files it's extracting or testing,
the extraction methods, any file or zipfile comments that may be
stored in the archive, and possibly a summary when finished with
each archive. The -q[q] options suppress the printing of some
or all of these messages.
Your command becomes:
unzip -qq myFile.war -d /home/app/