Hi,
I have two questions, wish to get advice,
Question 1:
For a series of files:
cat a_*.o* | grep "WARNING"
some file like a_1.o12 has WARNING, but others does not have WARNING
How can I let grep returns the filename?
Question 2:
ls . | xargs -i -t cp ./{} {}.bak
How does xargs work,
I checked google, :
-i : replace the string
-t print
but still lack well understanding,
how those xargs organise things,
and
$ ls .
a.txt b.txt
above will give a.txt.bak b.txt.bak
ls | xargs -i cp ./{} {basename {}.bak}
definitely not work,
Sorry I send it to debian list, I asked on another bash list, for two
days the second question, no one replied. I have much more faith in this
list.
WIth all the best regards,
--
To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
Archive: http://lists.debian.org/4ef9c0d3....@gmail.com
