Sponsored Content
Top Forums Shell Programming and Scripting How to print column based on row number Post 302484398 by Surabhi_so_mh on Thursday 30th of December 2010 11:59:45 PM
Old 12-31-2010
How to print column based on row number

Hi,
I want to print column value based on row number say multiple of 8.

Input file:
Code:
line 1 67  34
line 2 45  57
. . .
. . . 
line 8 12  46
. . .
. . .
line 16 24  90
. . .
. . .
line 24 49  67

Output
Code:
46
90
67

I tried
Code:
"for ((i = 1; i<=3; i++)) 
do
b=$(echo "scale=2;($i*8)"| bc)
awk "NR==$b {print $2}" input file>> output file
done"

But it prints both the columns. I want to print only 2nd column.
Please help



Moderator's Comments:
Mod Comment Please use code tags when posting data and code samples, thank you.

Last edited by Franklin52; 12-31-2010 at 07:21 AM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

deleting a row if a certain column is below a certain number

How can you delete a row if a certain column is bigger than a certain number? I have the following input: 20080709 20081222 95750 1 0 0.02 94.88 20080709 20081222 95750 2 0 0.89 94.88 20080709 20081222 9575 1 0 0 94.88 20080709 20081222 9575 2 0 0 94.88 20080709 20081222 9587.5 1 0 0... (1 Reply)
Discussion started by: Pep Puigvert
1 Replies

2. UNIX for Dummies Questions & Answers

deleting a row if a certain column is below a certain number

How can you delete a row if a certain column is bigger than a certain number? I have the following input: 20080709 20081222 95750 1 0 0.02 94.88 20080709 20081222 95750 2 0 0.89 94.88 20080709 20081222 9575 1 0 0 94.88 20080709 20081222 9575 2 0 0 94.88 20080709 20081222 9587.5 1 0 0... (6 Replies)
Discussion started by: Pep Puigvert
6 Replies

3. Shell Programming and Scripting

Count the number or row with same value in a column

This is the source file, we called it errorlist.out 196 server_a server_unix_2 CD 196 server_b server_win_1 CD 196 server_c server_win_2 CD 196 server_bd server_unix_2 CD 196 server_d server_unix_2 CD 196 server_es server_win_1 CD 196 ... (14 Replies)
Discussion started by: sQew
14 Replies

4. UNIX for Dummies Questions & Answers

awk to print first row with forth column and last row with fifth column in each file

file with this content awk 'NR==1 {print $4} && NR==2 {print $5}' file The error is shown with syntax error; what can be done (4 Replies)
Discussion started by: cdfd123
4 Replies

5. Shell Programming and Scripting

Print every 5 4th column values as separate row with different first column

Hi, I have the following file, chr1 100 200 20 chr1 201 300 22 chr1 220 345 23 chr1 230 456 33.5 chr1 243 567 90 chr1 345 600 20 chr1 430 619 21.78 chr1 870 910 112.3 chr1 914 920 12 chr1 930 999 13 My output would be peak1 20 22 23 33.5 90 peak2 20 21.78 112.3 12 13 Here the... (3 Replies)
Discussion started by: jacobs.smith
3 Replies

6. Shell Programming and Scripting

Get row number from file1 and print that row of file2

Hi. How can we print those rows of file2 which are mentioned in file1. first character of file1 is a row number.. for eg file1 1:abc 3:ghi 6:pqr file2 a abc b def c ghi d jkl e mno f pqr ... (6 Replies)
Discussion started by: Abhiraj Singh
6 Replies

7. Shell Programming and Scripting

Print row on 4th column to all row

Dear All, I have input : SEG901 5173 9005 5740 SEG902 5227 5284 SEG903 5284 5346 SEG904 5346 9010 SEG905 5400 5456 SEG906 5456 5511 SEG907 5511 9011 SEG908 5572 9015 SEG909 5622 9020 SEG910 5678 5739 SEG911 5739 5796 SEG912 5796 9025 ... (3 Replies)
Discussion started by: attila
3 Replies

8. Shell Programming and Scripting

Print first row of column a, last row of column b if column a has the same value

I have a table with this structure: cola colb colc 1 19 lemon 20 31 lemon 32 100 lemon 159 205 cherries 210 500 cherries and need to parse it into this format: cola colb colc 1 100 lemon 159 500 cherries So I need the first row of cola and the last row of colb if colc has the... (3 Replies)
Discussion started by: coppuca
3 Replies

9. UNIX for Beginners Questions & Answers

Select and copy .csv files based on row and column number

Dear UNIX experts, I'm a command line novice working on a Macintosh computer (Bash shell) and have neither found advice that is pertinent to my problem on the internet nor in this forum. I have hundreds of .csv files in a directory. Now I would like to copy the subset of files that contains... (8 Replies)
Discussion started by: rcsapo
8 Replies

10. UNIX for Beginners Questions & Answers

Print a row with the max number in a column

Hello, I have this table: chr1_16857_17742 - chr1 17369 17436 "ENST00000619216.1"; "MIR6859-1"; - 67 chr1_16857_17742 - chr1 14404 29570 "ENST00000488147.1"; "WASH7P"; - 885 chr1_16857_18061 - chr1 ... (5 Replies)
Discussion started by: coppuca
5 Replies
PSC(1)							      General Commands Manual							    PSC(1)

NAME
psc - prepare sc files SYNOPSIS
psc [-fLkrSPv] [-s cell] [-R n] [-C n] [-n n] [-d c] DESCRIPTION
Psc is used to prepare data for input to the spreadsheet calculator sc(1). It accepts normal ascii data on standard input. Standard out- put is a sc file. With no options, psc starts the spreadsheet in cell A0. Strings are right justified. All data on a line is entered on the same row; new input lines cause the output row number to increment by one. The default delimiters are tab and space. The column for- mats are set to one larger than the number of columns required to hold the largest value in the column. OPTIONS
-f Omit column width calculations. This option is for preparing data to be merged with an existing spreadsheet. If the option is not specified, the column widths calculated for the data read by psc will override those already set in the existing spreadsheet. -L Left justify strings. -k Keep all delimiters. This option causes the output cell to change on each new delimiter encountered in the input stream. The default action is to condense multiple delimiters to one, so that the cell only changes once per input data item. -r Output the data by row first then column. For input consisting of a single column, this option will result in output of one row with multiple columns instead of a single column spreadsheet. -s cell Start the top left corner of the spreadsheet in cell. For example, -s B33 will arrange the output data so that the spreadsheet starts in column B, row 33. -R n Increment by n on each new output row. -C n Increment by n on each new output column. -n n Output n rows before advancing to the next column. This option is used when the input is arranged in a single column and the spreadsheet is to have multiple columns, each of which is to be length n. -d c Use the single character c as the delimiter between input fields. -P Plain numbers only. A field is a number only when there is no imbedded [-+eE]. -S All numbers are strings. -v Print the version of psc SEE ALSO
sc(1) AUTHOR
Robert Bond PSC 7.16 19 September 2002 PSC(1)
All times are GMT -4. The time now is 08:12 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy