Top Forums UNIX for Dummies Questions & Answers awk : dynamic output flatfile filename Post 302974666 by Tipiak on Thursday 2nd of June 2016 03:46:19 AM
awk : dynamic output flatfile filename


I'm using the awk command to insert empty columns on a tab delimited flatfile - which works fine -
=> But I'm not able to manage dynamicaly the filename of the awk output based on the source flatfile filename

I have 3 source flatfile:

And I would like to output the result of the awk command to

Below the awk command which is working for inserting empty columns but I'm not able to manage dynamically the target flatfile filename

awk -F"\t" '$6="\t" $6' OFS="\t" *flatfile* > flatfile_Jan-2016.dat


Moderator's Comments:
Mod Comment Please use code tags as required by forum rules!

Last edited by RudiC; 06-02-2016 at 01:04 PM.. Reason: Added code tags.
Test Your Knowledge in Computers #157
Difficulty: Easy
The US Department of Defense declared TCP/IP as the standard for all military computer networking in March 1982,
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Dynamic filename in awk

Hi The following code seems to work, but why am i getting an error message? cscyabl@comet:(develop)> awk 'BEGIN {FS="|"}{print $2 >> $1}' test.sum awk: A print or getline function must have a file name. The input line number is 8. The file is test.sum. The source line number is 1. ... (2 Replies)
Discussion started by: Indalecio
2 Replies

2. Shell Programming and Scripting

gzcat into awk and then change FILENAME and process new FILENAME

I am trying to write a script that prompts users for date and time, then process the gzip file into awk. During the ksh part of the script another file is created and needs to be processed with a different set of pattern matches then I need to combine the two in the end. I'm stuck at the part... (6 Replies)
Discussion started by: timj123
6 Replies

3. Shell Programming and Scripting

how to include field in the output filename of awk

Im using awk and I want the output filename to contain the first field of the input file. Ex. 1 dddd wwwww 1 eeeee wwww 1 wwww eerrrr 2 eeee eeeeee I want the output files to be xxx1 and xxx2 Thank you (4 Replies)
Discussion started by: yahyaaa
4 Replies

4. Shell Programming and Scripting

How to use a dynamic filename with sed?

I have a line that works for static filename cat /directorypath/filename | sed '//d;//d' > filename This approach when used in a script works well. Then i need a list of filenames to give this line. I can get the list into a file by filelist1='ls -m' then use filelist2=${filelist1##ls... (4 Replies)
Discussion started by: ericonanson
4 Replies

5. Shell Programming and Scripting

dynamic output

Hi Guys, i have a input file as below SEL elapsedtime ,StartTime,QueryText FROM dbc.qry WHERE StartTime >= '2010-03-24 20:10:08' AND username ='xxx_yyy_aaa_01' ORDER BY LastRespTime DESC The output needed is just "=" which exist before 'xxx_yyy_aaa_01' ... (12 Replies)
Discussion started by: nitinrp1
12 Replies

6. Shell Programming and Scripting

Dynamic output file generation using a input text file with predefined output format

Hi, I have two files , one file with data file with attributes that need to be sent to another file to generate a predefined format. Example: File.txt AP|{SSHA}VEEg42CNCghUnGhCVg== APVG3|{SSHA}XK|"password" AP3|{SSHA}XK|"This is test" .... etc --------- has... (1 Reply)
Discussion started by: hudson03051nh
1 Replies

7. Shell Programming and Scripting

sending output to flatfile

Hi, I am writing one unix script to get row count of few tables into one sequential file my script is like this $ORACLE_HOME/bin/sqlplus -s <<EOF >output.txt userid/password@databasename set verify off set heading off set feedback off select count(*) count from tablel where ; select... (4 Replies)
Discussion started by: spmsarada
4 Replies

8. Shell Programming and Scripting

AWK specific output filename

Hi All, I'd like to create a specific output filename for AWK. The file I am processing with AWK looks like: output_081012.csv* 27*TEXT*1.0*2.0*3.0 where * is my delimeter and the first line of the file is the output filename i'd like to create is there a way to assign an awk... (10 Replies)
Discussion started by: LMSteed
10 Replies

9. Shell Programming and Scripting

Assign output to dynamic variable

Hi Folks, I am trying to assign a value from the command to a dynamic variable. But I am not getting the desired output.. I am sure something is wrong so i need experts advise. There will be multiple files like /var/tmp/server_1, /var/tmp/server_2, /var/tmp/server_3, having different server... (6 Replies)
Discussion started by: ganga.dharan
6 Replies

10. UNIX for Advanced & Expert Users

Problem piping find output to awk, 1st line filename is truncated, other lines are fine.

Today I needed to take a look through a load of large backup files, so I wrote the following line to find them, order them by size, and print the file sizes in GB along with the filename. What happened was odd, the output was all as expected except for the first output line which had the filename... (4 Replies)
Discussion started by: gencon
4 Replies
JOIN(1) 						      General Commands Manual							   JOIN(1)

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)

Featured Tech Videos

All times are GMT -4. The time now is 09:08 PM.
Unix & Linux Forums Content Copyright 1993-2020. All Rights Reserved.
Privacy Policy