"Using awk to change a specific column and in a specific row"

Post #303036416 by juggernautjoee on Tuesday 25th of June 2019 09:12:12 AM

Thanks for the replies guys!

Don, I'll try a few of those and get back to you. The end goal is a cron job that runs daily that will edit this file to replace that 2nd row 6th field with 2400 no matter what the number was before.

I had to compile a newer version of awk to get the inplace command to work, but I think I've got it.

/usr/local/bin/awk -i inplace -F, '/^02,193631306,000300032,1,/{$6 = 2400}1' OFS=, /testdir/BALTRN3.*

This will edit that line on all files in the directory. So I can run this every day to update any new files that get dumped in here by my lftp process.

I also needed to edit that 3rd line, 2nd field to something else, so I just tweaked the above command to fit my liking:

/usr/local/bin/awk -i inplace -F, '/^03,08082000001018001/{$2 = 1018001}1' OFS=, /testdir/BALTRN3.*

Guys, I can't thank you enough for pointing me in the right direction!
Moderator's Comments:
Mod Comment Please use CODE tags when displaying sample input, output, and code segments.

Last edited by Don Cragun; 06-25-2019 at 10:44 PM..
Test Your Knowledge in Computers #71
Difficulty: Easy
Linux, macOS, Android, iOS, Chrome OS, Orbis OS used on the PlayStation 4, whatever firmware is running on your router, all of these operating systems are generally referred to as a Unix-like operating system.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Insert a text from a specific row into a specific column using SED or AWK

Hi, I am having trouble converting a text file. I have been working for this whole day now, still i couldn't make it. Here is how the text file looks: _______________________________________________________ DEVICE STATUS INFORMATION FOR LOCATION 1: OPER STATES: Disabled E:Enabled ... (5 Replies)
Discussion started by: Issemael
5 Replies

2. UNIX for Dummies Questions & Answers

return a specific row using awk

Hello, I am using awk to process a file, and need to return a row that meets specific criteria. awk 'BEGIN{sets variables} {processes file, updates variables} END{need to print a row that meets the criteria in one of the variables} I have tried code in the END block like {print NR==var}... (1 Reply)
Discussion started by: badPuppy
1 Replies

3. Shell Programming and Scripting

Assigning a specific format to a specific column in a text file using awk and printf

Hi, I have the following text file: 8 T1mapping_flip02 ok 128 108 30 1 665000-000008-000001.dcm 9 T1mapping_flip05 ok 128 108 30 1 665000-000009-000001.dcm 10 T1mapping_flip10 ok 128 108 30 1 665000-000010-000001.dcm 11 T1mapping_flip15 ok 128 108 30... (2 Replies)
Discussion started by: goodbenito
2 Replies

4. Shell Programming and Scripting

change character(s) in specific column

Hi all! I need to change the final e every time when it is present in any word in column 1 to a; moreover, to change the final i again to a in any word in column 1, but just if word in column 2 begins with ha or si. Here below you can see a sample of my data: achwa ungeliachwa ungeli 1... (3 Replies)
Discussion started by: mjomba
3 Replies

5. Shell Programming and Scripting

delete a row with a specific value at a certain column

Hi, I want to delete rows that have 0 at column 4. The file looks like this: chr01 13 61 2 chr01 65 153 0 chr01 157 309 1 chr01 313 309 0 chr01 317 469 1 chr01 473 557 0 I want to delete all rows with a 0 at column 4 chr01 13 61 2 chr01 157 309 1 chr01 ... (3 Replies)
Discussion started by: kylle345
3 Replies

6. UNIX for Dummies Questions & Answers

awk: convert column to row in a specific way

Hi all! I have this kind of output: a1|b1|c1|d1|e1 a2|b2|c2 a3|b3|c3|d3 I would like to transpose columns d and e (when they exist) in column c, and under the row where they come from. Then copying the beginning of the row. In order to obtain: a1|b1|c1 a1|b1|d1 a1|b1|e1 a2|b2|c2... (1 Reply)
Discussion started by: lucasvs
1 Replies

7. Shell Programming and Scripting

how to remove tab space only in the column of a specific row

Hi, I need help to remove tab delimited space in the $2 of a specific row. My file is like this:- file1.txt No_1 4 139 156 No_1 5 161 205 No_4 91 227 212 No_19 254 243 263 No_19 645 249 258 No_19 101 2492 2635 No_90 8 277 288... (5 Replies)
Discussion started by: redse171
5 Replies

8. Shell Programming and Scripting

Print unique names in each row of a specific column using awk

Is it possible to remove redundant names in the 4th column? input cqWE 100 200 singapore;singapore AZO 300 400 brazil;america;germany;ireland;germany .... .... output cqWE 100 200 singapore AZO 300 400 brazil;america;germany;ireland (4 Replies)
Discussion started by: quincyjones
4 Replies

9. Shell Programming and Scripting

Overwrite specific column in xml file with the specific column from adjacent line

I have an xml file dumped from rrd file, that I want to "patch" so the xml file doesn't contain any blank hole in the resulting graph of the rrd file. Here is the file. <!-- 2015-10-12 14:00:00 WIB / 1444633200 --> <row><v> 4.0419731265e+07 </v><v> 4.5045912770e+06... (2 Replies)
Discussion started by: rk4k
2 Replies

10. Shell Programming and Scripting

Change some string in specific column with space

Hello All of Master Script , i need help to solve my problem before : mount /dev/rdsk/c1t69d0s6 /dev/rdsk/c1t69d0s6 /vol/cl123/PURGE1 ufs mount /dev/rdsk/c1t70d0s6 /dev/rdsk/c1t70d0s6 /vol/cl123/PURGE2 ufs expected : mount /dev/dsk/c1t69d0s6 /dev/rdsk/c1t69d0s6 /PURGE1 ufs mount ... (3 Replies)
Discussion started by: k0p0nkkk
3 Replies
IGAWK(1)							 Utility Commands							  IGAWK(1)

igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)

Featured Tech Videos

All times are GMT -4. The time now is 01:44 PM.
Unix & Linux Forums Content Copyright 1993-2019. All Rights Reserved.
Privacy Policy