The contents of the file will get updated regularly with different `t' values (first column) and `r' values (third column). After each update of the file, I want to be always able to print the line which contains: The highest value of `r' (third column) for the first-repeating value of `t' (first column).
So, in the above version of the file I want to print the 4th line:
Hi Guys...
I am newbie to awk and would like a solution to probably one of the simple practical questions.
I have a test file that goes as:
1,2,3,4,5,6
7,2,3,8,7,6
9,3,5,6,7,3
8,3,1,1,1,1
4,4,2,2,2,2
I would like to know how AWK can get me the distinct values say for eg: on col2... (22 Replies)
Hello,
I have a 1.6 GB file that I would like to modify by matching some ids in col1 with the ids in col 1 of file2.txt and save the results into a 3rd file.
For example:
File 1 has 1411 rows, I ignore how many columns it has (thousands)
File 2 has 311 rows, 1 column
Would like to... (7 Replies)
Hello Friends,
I am in situation where I have to note down few SQL queries from specific hexdump format. Here is an example (the query text starts at 65th character on each line)
----------------------
0x000007FEB0E701C0 : 7365 6C65 6374 2063 7573 746E 6F2C 2020 select custno, ... (9 Replies)
Hello,
I have some tab delimited data and I need to move the last col. I could hard code it,
awk '{ print $1,$NF,$2,$3,$4,etc }' infile > outfile
but it would be nice to know the syntax to print a range cols.
I know in cut you can do,
cut -f 1,4-8,11-
to print fields 1,... (8 Replies)
Hi Friends,
This is the only solution to my task. So, any help is highly appreciated.
I have a file
cat input1.bed
chr1 100 200 abc
chr1 120 300 def
chr1 145 226 ghi
chr2 567 600 unix
Now, I have another file by name
input2.bed (This file is a binary file not readable by the... (7 Replies)
Hi,
Please help with this.
I have several excel files (with and .xlsx format) with 10-15 columns each.
They all have the same type of data but the columns are not ordered in the same way.
Here is a 3 column example. What I want to do add the alphabet
from column 2 to column 3, provided... (9 Replies)
I want to expand on a question that I just asked here:
I want to extract only those values in Column 2 that are shared by at least 2 unique values in Column 2.
Using the same input (in this case 3- tab-separated columns):
waterline-n below-sheath-v 14.8097
dock-n below-sheath-v ... (2 Replies)
Hi everyone,
I have the following file, which is a 3 column tab-delineated.
cat big 24
cat small 13
cat red 63
dog big 34
chicken plays 39
fish red 294
I would like to print only those lines, in which the value in Col2 is repeated. Thus, given the above input file, the desired... (7 Replies)
Hi Gurus,
I have requirement to identify the records based on one column value.
the sample file as below:
ID AMT, AMT1
100,10, 2
100,20, 3
200,30, 0
200, 40, 0
300, 20, 2
300, 50, 2
400, 20, 1
400, 60, 0
for each ID, there 2 records, if any one record amt1 is 0, the in 4th col add... (5 Replies)
Hello Friends,
Hope all are doing fine.
Here is a tricky issue.
my input file is like this
07 10 14 20 21
03 15 27 30 32
01 10 11 19 30
02 06 14 15 17
01 06 20 25 29
Logic:
1. Please print another column as "0-0-0-0-0" for the first and second rows.
2. Read the first column... (4 Replies)
Discussion started by: jacobs.smith
4 Replies
LEARN ABOUT OPENDARWIN
col
COL(1) BSD General Commands Manual COL(1)NAME
col -- filter reverse line feeds from input
SYNOPSIS
col [-bfhpx] [-l num]
DESCRIPTION
The col utility filters out reverse (and half reverse) line feeds so that the output is in the correct order with only forward and half for-
ward line feeds, and replaces white-space characters with tabs where possible. This can be useful in processing the output of nroff(1) and
tbl(1).
The col utility reads from the standard input and writes to the standard output.
The options are as follows:
-b Do not output any backspaces, printing only the last character written to each column position.
-f Forward half line feeds are permitted (``fine'' mode). Normally characters printed on a half line boundary are printed on the fol-
lowing line.
-h Don't output multiple spaces instead of tabs (default).
-l num Buffer at least num lines in memory. By default, 128 lines are buffered.
-p Force unknown control sequences to be passed through unchanged. Normally, col will filter out any control sequences from the input
other than those recognized and interpreted by itself, which are listed below.
-x Output multiple spaces instead of tabs.
The control sequences for carriage motion that col understands and their decimal values are listed in the following table:
ESC-7 reverse line feed (escape then 7)
ESC-8 half reverse line feed (escape then 8)
ESC-9 half forward line feed (escape then 9)
backspace moves back one column (8); ignored in the first column
carriage return (13)
newline forward line feed (10); also does carriage return
shift in shift to normal character set (15)
shift out shift to alternate character set (14)
space moves forward one column (32)
tab moves forward to next tab stop (9)
vertical tab reverse line feed (11)
All unrecognized control characters and escape sequences are discarded.
The col utility keeps track of the character set as characters are read and makes sure the character set is correct when they are output.
If the input attempts to back up to the last flushed line, col will display a warning message.
SEE ALSO expand(1), nroff(1), tbl(1)STANDARDS
The col utility conforms to Version 2 of the Single UNIX Specification (``SUSv2'').
HISTORY
A col command appeared in Version 6 AT&T UNIX.
BSD June 29, 1993 BSD
07-23-2011
Print line based on highest value of col (B) and repetion of values in col (A)
