--- /dev/null
+#!/bin/sh
+# -copyright-
+#-# Copyright © 2021 Eric Bina, Dave Black, TJ Phan,
+#-# Vincent Renardias, Willem Vermin
+#-#
+#-# Permission is hereby granted, free of charge, to any person
+#-# obtaining a copy of this software and associated documentation
+#-# files (the “Software”), to deal in the Software without
+#-# restriction, including without limitation the rights to use,
+#-# copy, modify, merge, publish, distribute, sublicense, and/or
+#-# sell copies of the Software, and to permit persons to whom
+#-# the Software is furnished to do so, subject to the following
+#-# conditions:
+#-#
+#-# The above copyright notice and this permission notice shall
+#-# be included in all copies or substantial portions of the Software.
+#-#
+#-# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND,
+#-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+#-# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+#-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+#-# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+#-# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+#-# OTHER DEALINGS IN THE SOFTWARE.
+#-#
+crfile=`mktemp`
+cat << eof | sed 's/^/#-# /' > "$crfile"
+Copyright © 2021 Eric Bina, Dave Black, TJ Phan,
+ Vincent Renardias, Willem Vermin
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the “Software”), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom
+the Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall
+be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+eof
+n=0
+while [ "$1" ] ; do
+ f="$1"
+ shift
+ txt="-""copyright-"
+ if file --mime "$f" | grep -q binary ; then
+ echo "$f: binary"
+ continue
+ fi
+ if ! grep -q -- "$txt" "$f" ; then
+ echo "$f: no $txt"
+ continue
+ fi
+ # following 2 sed commands take care that only the first '-copyright-'
+ # will be followed by the copyright text
+ # Notice that sed requires a newline after the filename of the 'r' command
+ sed -i "/^\s*#-#/d" "$f"
+ sed -i "/$txt/{r $crfile
+ :a;n;ba;}" "$f"
+ n=`expr $n + 1`
+done
+echo "$n files copyrighted"