diary of a window system hacker 26 Mar 2004 http://www.fooishbar.org/blog can't think of a clever byline en keith packard is insane http://www.fooishbar.org/blog/tech/x/keithpEdScript-2004-03-26-13-39.html Keith Packard, please seek professional help. 
#!/bin/sh
for i in "$@"; do
        if grep -q '<config.h>' $i; then
                echo $i already has config.h
        else
                chmod +w $i
                ed $i << EOF
/^#/
i
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
.
w
q
EOF
        fi
done
]]>