Visit The New, Modern Unix Linux Community


Replace one column from fixed width file with another column from another file


 
Thread Tools Search this Thread
Top Forums UNIX for Beginners Questions & Answers Replace one column from fixed width file with another column from another file
# 8  
The OP specified
Quote:
match (col pos#134, 12 bytes) ... if ... not found in File 2, it should replaced with blank spaces.
, that's what the formatted sprintf is for. As the sample data are just 10 byte long, not 12, we need to wait until resolved by the OP, we can just guess. Try this simplified but more flexible version
Code:
awk -vPOS=134 -vLEN=12 '
NR==FNR    {pat[$1] = $2
            next
           }

           {print substr ($0, 1, POS-1) sprintf ("%*s", LEN, pat[substr ($0, POS, LEN)]) substr ($0, POS+LEN)
           }
' FS='|' File2.txt  File1.txt

These 2 Users Gave Thanks to RudiC For This Post:
# 9  
Hi, @RudiC
Code:
awk '
NR==FNR {pat[$1] = $2
         next
        }
        {print substr($0, 134, 12)
        }
' FS='|' File2.txt File1.txt | cat -vet

606951-000  $
606951-000  $
607650-000  $
607650-000  $
162010-000  $

Code:
awk '
NR==FNR {pat[$1] = $2
         next
        }
        {print pat[substr($0, 134, 12)]
        }
' FS='|' File2.txt File1.txt | cat -vet
$
...
$

Code:
awk '
NR==FNR {pat[$1] = $2
         next
        }
        {print pat[substr($0, 134, 10)]
        }
' FS='|' File2.txt File1.txt | cat -vet
7543$
7543$
9654$
9654$
$

Then it means so?
Code:
pat[$1"  "] = $2

This User Gave Thanks to nezabudka For This Post:
# 10  
Thank you to Nezabudka and Rudi C for your inputs.

After doing some additional testing, here's the final code after some tweaking:

Code:
awk '
NR==FNR    {pat[$1] = $2
            next
           }
           {$0 = substr ($0, 1, 133) sprintf ("%-12s", pat[substr ($0, 134, 12)]) substr($0, 146)
           }
1 ' FS='|' File2.txt  File1.txt


Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #119
Difficulty: Easy
The Single UNIX Specification (SUS) is a standard for Unix systems to qualify and have permission to use the UNIX certification mark.
True or False?

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

UNIX command -Filter rows in fixed width file based on column values

Hi All, I am trying to select the rows in a fixed width file based on values in the columns. I want to select only the rows if column position 3-4 has the value AB I am using cut command to get the column values. Is it possible to check if cut -c3-4 = AB is true then select only that... (2 Replies)
Discussion started by: ashok.k
2 Replies

2. Shell Programming and Scripting

Print column details from fixed width file using awk command

hi, i have a fixed width file with multiple columns and need to print data using awk command. i use: awk -F "|" '($5 == BH) {print $1,$2,$3}' <non_AIM target>.txt for a delimiter file. but now i have a fixed width file like below: 7518 8269511BH 20141224951050N8262 11148 8269511BH... (5 Replies)
Discussion started by: kcdg859
5 Replies

3. Shell Programming and Scripting

To replace the value of the column in a fixed width file

I have a fixed with file with header & trailer length having the same length of the detail record file. The details record length of this file is 24, for Header and Trailer the records will be padded with spaces to match the record length of the file Currently I am adding 3 spaces in header... (14 Replies)
Discussion started by: ginrkf
14 Replies

4. Shell Programming and Scripting

How to split a fixed width text file into several ones based on a column value?

Hi, I have a fixed width text file without any header row. One of the columns contains a date in YYYYMMDD format. If the original file contains 3 dates, I want my shell script to split the file into 3 small files with data for each date. I am a newbie and need help doing this. (14 Replies)
Discussion started by: bhanja_trinanja
14 Replies

5. UNIX for Dummies Questions & Answers

Remove duplicates based on a column in fixed width file

Hi, How to output the duplicate record to another file. We say the record is duplicate based on a column whose position is from 2 and its length is 11 characters. The file is a fixed width file. ex of Record: DTYU12333567opert tjhi kkklTRG9012 The data in bold is the key on which... (1 Reply)
Discussion started by: Qwerty123
1 Replies

6. Shell Programming and Scripting

row to column and position data in to fixed column width

Dear friends, Below is my program and current output. I wish to have 3 or 4 column output in order to accomodate in single page. i do have subsequent command to process after user enter the number. Program COUNT=1 for MYDIR in `ls /` do VOBS=${MYDIR} echo "${COUNT}. ${MYDIR}" ... (4 Replies)
Discussion started by: baluchen
4 Replies

7. Shell Programming and Scripting

Changing one column of delimited file column to fixed width column

Hi, Iam new to unix. I have one input file . Input file : ID1~Name1~Place1 ID2~Name2~Place2 ID3~Name3~Place3 I need output such that only first column should change to fixed width column of 15 characters of length. Output File: ID1<<12 spaces>>Name1~Place1 ID2<<12... (5 Replies)
Discussion started by: manneni prakash
5 Replies

8. Shell Programming and Scripting

edit entire column from a fixed-width file using awk or sed

Col1 Col2 Col3 Col4 12 Completed 08 0830 12 In Progress 09 0829 11 For F U 07 0828 Considering the file above, how could i replace the third column the most efficient way? The actual file size is almost 1G. I am... (10 Replies)
Discussion started by: tamahomekarasu
10 Replies

9. Shell Programming and Scripting

Comparing column of variable length anf fixed width file

Hi, I have two input files. File1: ID Name Place 1-234~name1~Newyork 1-34~name2~Boston 1-2345~name3~Hungary File1 is a variable length file where each column is seperated by delimitter "~". File2: ID Country 1-34<<11 SPACES>>USA<<7 spaces>> 1-234<<10 SPACES>>UK<<8... (5 Replies)
Discussion started by: manneni prakash
5 Replies

Featured Tech Videos