Grep show file name once

UNIX for Advanced & Expert Users
1

I am using grep as follows

grep --include \*.org -ir "sunspot" -C 3 ./astron_aphys/solarsy/sun/helioseism/localhs/fhankel/

This gives me the filename for each matched line. How can I change the command to print the file name only once rather than having the same file name repeated at every line

2

kristinu,
Please show your output. To obtain unique output, you can pipe the results from grep to

sort | uniq

or better yet

sort -u

commands.

3

Pipe your grep to this post processor

awk '$0=="--" {print; next} {fname=line=$0; sub(/[:-].*/,"",fname); sub(/.*[:-]/,"",line)} fname!=oldfname {print "File="fname; oldfname=fname} {print line}'