Is this what you were trying to do? You don't have to use nawk.
if its a very large file as OP mentioned, running each line through a while loop and echoing part of each through sed might not be that efficient. it might be better to eliminate the while loop and let sed iterate the file instead since sed is internally "looping" over files anyway.
Also, awk is specifically designed to process structured data so it understands fields. using awk might be more "appropriate" in OP's case.
Hi Guys,
I'm tying to split a line similar to this:YO6-2000-30.htm: (3 properties found).......into separate columns, so effectively I need to check for a -, ., :, a tab and a space in the statement.
Any help would be appreciated
Thanks! (7 Replies)
I saw a couple of posts here referencing how to handle more than one input field separator in awk. I figured I would share how I (just!) figured out how to turn this line in a logfile:
90000000000000000000010001 name... (4 Replies)
I need to print the second field of a file, taking spaces, tab and = as field separators.
; for 16-bit app support
MAPI=1
CMC=1
CMCDLLNAME32=mapi32.dll
CMCDLLNAME=mapi.dll
MAPIX=1
MAPIXVER=1.0.0.1
OLEMessaging=1
asf=MPEGVideo
asx=MPEGVideo
ivf=MPEGVideo
m3u=MPEGVideo (2 Replies)
Hi Guys,
I have small dilemma which I could do with a little help solving . I currently have text HDD S.M.A.R.T report which I have pasted below:
smartctl 5.39 2008-10-24 22:33 (openSUSE RPM)
Copyright (C) 2002-8 by Bruce Allen, http://smartmontools.sourceforge.net
Device: COMPAQ... (2 Replies)
I have files such as
n02-z30-dsr65-terr0.25-dc0.008-16x12drw-run1.cmd
I am wondering if it is possible to define two field separators "-" and "."
for these strings so that $7 is run1. (5 Replies)
I am trying to figure out a way in nawk to 1) get a count of the number of times a value appears in field 1 and 2) count each time the same value appears in field 2 for each value of field 1. So for example, if I have a text file with the following:
grapes, purple
apples, green
squash, yellow... (2 Replies)
How do I use multiple field separators in awk?
I know that if I use awk -F"", both a and b will be field separators. But what if I need two field separators that both are longer than one letter?
If I want the field separators to be "ab" and "cd", I will not be able to use awk -F"". The ... (2 Replies)
I have a file with two ID columns followed by five columns of counts in fraction form. I'd like to print lines that have a count of at least 4 (so at least 4 in the numerator, e.g. 4/17) in at least one of the five columns.
Input file:
comp51820_c1_seq1 693 0/29 0/50 0/69 0/36 0/31... (6 Replies)
Can you please help me with this ....
Input File
share "FTPTransfer" "/v31_fs01/root/FTP-Transfer" umask=022 maxusr=4294967295 netbios=NJ09FIL530
share "Test" "/v31_fs01/root/Test" umask=022 maxusr=4294967295 netbios=NJ09FIL530
share "ENR California" "/v31_fs01/root/ENR California"... (14 Replies)
I have a large file that I need to print certain sections out of.
file.txt
/alpha/beta/delta/gamma/425/590/USC00015420.blah.lt.0.01.str:USC00015420Y2017M10BLALT.01 12 13 14 -9 1 -9 -9 -9 -9 -9 1 2 3 4 5 -9 -9
I need to print the "USC00015420" and... (5 Replies)
Discussion started by: ncwxpanther
5 Replies
LEARN ABOUT MINIX
join
JOIN(1) General Commands Manual JOIN(1)NAME
join - relational database operator
SYNOPSIS
join [-an] [-e s] [-o list] [-tc] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If file1 is `-', the standard
input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Fields are normally separated by blank, tab or newline. In this case, multiple separators count as one, and leading separators are dis-
carded.
These options are recognized:
-an In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-e s Replace empty output fields by string s.
-o list
Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a
field number.
-tc Use character c as a separator (tab character). Every appearance of c in a line is significant.
SEE ALSO sort(1), comm(1), awk(1).
BUGS
With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort.
The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous.
7th Edition April 29, 1985 JOIN(1)