So I have a file containing data of a marathon. Here's an example what it looks like including the given key:
Code:
# key: sex, time, athlete, athlete's nationality, date, city, country
M, 2:30:57.6, Harry Payne, GBR, 1929-07-05, Stamford Bridge, England
M, 2:5:42, Khalid Khannouchi, MAR, 1999-10-24, Chicago, USA
M, 2:5:37.8, Khalid Khannouchi, USA, 2002-04-14, London, USA
My task is to extract all lines that feature a runner's last name starting with a C.
What I did was; I sorted the file according to key 4 and redirected the output to a new file, which gave me the list sorted in alphabetical order according to their last name. I used this command to do this;
Code:
sort -k 4 marathon > t21a
.
Does anyone know if there is a command that allows me to grep all entries which have the last name starting with C from the key position these terms are in?
Any help would be much appreciated.
I have tried to grep from a key position but the option I used(from sort) does not exist for grep;
Code:
grep -k 4 '^[C,c]' t21b > t21c
Thank you
Last edited by Scrutinizer; 05-21-2018 at 08:59 AM..
Reason: code tags
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LEARN ABOUT X11R4
zgrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code:
(-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the
standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep.
If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.
EXIT CODE
2 - An option that is not supported was specified.
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)ZGREP(1)
05-21-2018
Grep a pattern in a key position a file
