Understanding sed

[drimades]

Can someone explain what the following does?

sed -i -e "s@^#include <linux/config.h>@/* & */@" \
`grep -lr linux/config.h *` &&
( make World 2>&1 | tee xorg-compile.log && exit $PIPESTATUS )

 

[ilovecocks]

Looks like somekind of script generator.
do a man sed and maybe there is a man page about it

 

[stanhubble]

for each file that has linux/config.h in it
substitute /* & */ for any string #include <linux/config.h> that is at the beginning of the line.

if that completed successfully run make World
and pipe the output to stdout and to a logfile

if that completed successfully exit with an error level of $PIPESTATUS