I have a question on how i can get the column number in a file and used it in awk.
i have a file which it has these records inside it.
and there are other files that have the same header name but with different positions. what i wanted to achieve is to get the column number for the header field that starts with SUB_ACC_NO.
The awk command awk -F: '{print $1}' test1 gives the first columns of all the lines in file ,is there some command to get a particular column from particular line .
Any help is appreciated.
thanks arif (4 Replies)
Is there anyway to use awk to add a first column to my data that automatically goes from 1 to n , where n is the numbers of my rows?:confused: (4 Replies)
Hi All,
I have the following input which i want to process using AWK.
Rows,NC,amount
1,1202,0.192387
2,1201,0.111111
3,1201,0.123456
i want the following output
count of rows = 3 ,sum of amount = 0.426954
Many thanks (2 Replies)
Hi !
input:
A|B|C|D
A|F|C|E
A|B|I|C
A|T|I|B
As the title of the thread says, I would need to get:
1|3|2|4
I tried different variants of this command, but I don't manage to obtain what I need:
gawk 'BEGIN{FS=OFS="|"}{for(i=1; i<=NF; i++) a++} END {for (b in a) print b}' input
... (2 Replies)
Hi everyone,
I have a data file in which the data is stored in event blocks. What I would like to get is that the same file with every data row starting with the number of event block. So here is two event blocks from my file:
<event>
-2 -1 0 0 0 501 0.00000000000E+00
... (2 Replies)
I have the following awk script that I am using to find the max value in the file and print results.
awk 'BEGIN {MAX=-1E100} {for (x=2; x<=NF; x++) if ($x>MAX) {MAX = $x; C1 = $1}} END {print substr(C1,1,11), substr(C1,13,4), substr(C1,18,2), MAX}' ABC*
Input (ABC*)
... (6 Replies)
I have the following script that will print column 4 ("25") when column 1 contains "123". However, I need to ignore the alpha characters that are contained in the input file. If I were to ignore the characters my output would be column 3.
What is the best way to print my column of interest... (3 Replies)
I want to split this with every 5 or 50 depend on how much data the file will have. And remove the comma on the end
Source file will have
001,0002,0003,004,005,0006,0007,007A,007B,007C,007E,007F,008A,008C
Need Output from every 5 tab and remove the comma from end of each row
... (4 Replies)
Discussion started by: ranjancom2000
4 Replies
LEARN ABOUT FREEBSD
colrm
COLRM(1) BSD General Commands Manual COLRM(1)NAME
colrm -- remove columns from a file
SYNOPSIS
colrm [start [stop]]
DESCRIPTION
The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read
from the standard input. Output is written to the standard output.
If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are spec-
ified, columns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not
zero.
Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one.
ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).
EXIT STATUS
The colrm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO awk(1), column(1), cut(1), paste(1)HISTORY
The colrm command appeared in 3.0BSD.
BSD August 4, 2004 BSD