Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Replace a field in a comma separated file
Top Forums UNIX for Beginners Questions & Answers Replace a field in a comma separated file Post 303044849 by vgersh99 on Thursday 5th of March 2020 09:49:05 AM
Old 03-05-2020
a bit verbose and can be simplified - just following your description.

Code:
 awk -v fld='5,8' -f hsquared.awk myFile.csv

where hsquared.awk is:
Code:
BEGIN {
  FS=OFS=","
  fld=(!fld)?"5":fld
  fldN=split(fld, fldA,FS)
}
function convF(str ) {
 return (substr(str,1,4) "-" substr(str,5,2) "-" substr(str,7))
}
{
   for(i=1;i<=fldN;i++) {
     if ($(fldA[i]-1)==0 && $(fldA[i])!=0)
       $(fldA[i])=convF("19" $(fldA[i]))

     if ($(fldA[i]-1)==0 && $(fldA[i])==0)
       $(fldA[i])=convF("00010101")

     if ($(fldA[i]-1)==1) {
        if (length($(fldA[i])) == 5)
           $(fldA[i])=convF("200" $(fldA[i]))
        else
           $(fldA[i])=convF("20" $(fldA[i]))
     }

   }
}
1

results in:
Code:
29,A Store,A Street,1,2011-12-13,aaaa,0,1989-12-13
30,B Store,B Street,0,1999-12-13,aaaa,1,2006-12-13
31,C Store,C Street,1,2005-12-13,aaaaa,1,2008-12-13
32,D Store,D Street,0,0001-01-01,aaaa,1,2015-03-23
33,E Store,E Street,1,2012-12-12,bbbb,0,0001-01-01
34,F Store,F Street,1,2010-12-12,cccc,0,1997-12-12

awk -f hsquared.awk myFile.csv will do only field 5 by default
This User Gave Thanks to vgersh99 For This Post:
H squared
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Its PERL + Comma separated seventh field

Hi Friends, I'm working on a perl script, which seems to be simpler. But I'm very new to PERL scripting. I have a comma separated data file, from which I need to extract only the seventh field data out of available twenty fields to an array using perl. Any help would be much appreciated. ... (17 Replies)
Discussion started by: ganapati
17 Replies

2. Shell Programming and Scripting

Replace comma by space for specified field in record

Hi, i want to replace comma by space for specified field in record, i mean i want to replace the commas in the 4th field by space. and rest all is same throught the record. the record is 16458,99,001,"RIMOUSKI, QC",418,"N",7,EST,EDT,902 16458,99,002,"CHANDLER,... (5 Replies)
Discussion started by: raghavendra.cse
5 Replies

3. Shell Programming and Scripting

How to format file into comma separated field

Guys, Need you help, i have a a file content that look like this. Nokia 3330 <spaces><spaces><more spaces>+76451883874 Nokia 3610 +87467361615 so on and so forth, - there are so many spaces in between. - e.g.... (5 Replies)
Discussion started by: shtobias
5 Replies

4. Shell Programming and Scripting

Inserting string in between field in comma separated file

Hello Mates, I have one txt file having commo seperated values. I have to insert string "FALSE" in 2nd field from the end. E.G SE18 6RN,,,,5439070,1786840,,1000002148671600,123434 Out put should be: SE18 6RN,,,,5439070,1786840,FALSE,1000002148671600,123434 Can some one help me to... (8 Replies)
Discussion started by: krsnadasa
8 Replies

5. Shell Programming and Scripting

Comma separated file

Hi all, I have the following files types: FileA: 100, 23, 33, FileB: 22, 45, 78, and i want to make File C: 100,22 23,45 33,78 any nice suggestions for making it easy. (3 Replies)
Discussion started by: hen1610
3 Replies

6. Shell Programming and Scripting

Need Help - comma inside double quote in comma separated csv,

Hello there, I have a comma separated csv , and all the text field is wrapped by double quote. Issue is some text field contain comma as well inside double quote. so it is difficult to process. Input in the csv file is , 1,234,"abc,12,gh","GH234TY",34 I need output like below,... (8 Replies)
Discussion started by: Uttam Maji
8 Replies

7. Shell Programming and Scripting

How to split the comma separated file?

Hi, I have a filein unix like ABC,CDE BCD,KHL and the output i need is like column1 column2 ABC,CDE ABC ABC,CDE CDE BCD,KHL BCD BCD,KHL KHL. Can some body help me out? Hi, The code is working fine. But in my file each row does not have always 1 comma. It may... (6 Replies)
Discussion started by: jagdishrout
6 Replies

8. UNIX for Dummies Questions & Answers

[solved] Comma separated values to space separated

Hi, I have a large number of files which are written as csv (comma-separated values). Does anyone know of simple sed/awk command do achieve this? Thanks! ---------- Post updated at 10:59 AM ---------- Previous update was at 10:54 AM ---------- Guess I asked this too soon. Found the... (0 Replies)
Discussion started by: lost.identity
0 Replies

9. Shell Programming and Scripting

Comma separated to rows based on field

Hi to all, I have a file like: chr1 a1 a2 a3 a4 a5 a6,a7,a8,a9 chr1 b1 b2 b3 b4 b5 b6,b7 chr2 c1 c2 c3 c4 c5 c6,c7,c8,c9,c10 ... I would like an output like this: chr1 a6 chr1 a7 chr1 a8 chr1 a9 chr1 b6 chr1 b7 chr2 c6 chr2 c7 chr2 c8 (6 Replies)
Discussion started by: aec
6 Replies

10. Shell Programming and Scripting

awk to parse comma separated field and removing comma in between number and double quotes

Hi Experts, Please support I have below data in file in comma seperated, but 4th column is containing comma in between numbers, bcz of which when i tried to parse the file the column 6th value(5049641141) is being removed from the file and value(222.82) in column 5 becoming value of column6. ... (3 Replies)
Discussion started by: as7951
3 Replies

LEARN ABOUT FREEBSD

dwarf_get_cfa_name

DWARF_GET_AT_NAME(3)					   BSD Library Functions Manual 				      DWARF_GET_AT_NAME(3)

NAME

     dwarf_get_ACCESS_name, dwarf_get_AT_name, dwarf_get_ATE_name, dwarf_get_CC_name, dwarf_get_CFA_name, dwarf_get_CHILDREN_name,
     dwarf_get_DS_name, dwarf_get_DSC_name, dwarf_get_EH_name, dwarf_get_END_name, dwarf_get_FORM_name, dwarf_get_ID_name, dwarf_get_INL_name,
     dwarf_get_LANG_name, dwarf_get_LNE_name, dwarf_get_LNS_name, dwarf_get_MACINFO_name, dwarf_get_OP_name, dwarf_get_ORD_name,
     dwarf_get_TAG_name, dwarf_get_VIRTUALITY_name, dwarf_get_VIS_name -- retrieve the symbolic names of DWARF constants

LIBRARY

     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS

     #include <libdwarf.h>

     int
     dwarf_get_ACCESS_name(unsigned val, char **str);

     int
     dwarf_get_AT_name(unsigned val, char **str);

     int
     dwarf_get_ATE_name(unsigned val, char **str);

     int
     dwarf_get_CC_name(unsigned val, char **str);

     int
     dwarf_get_CFA_name(unsigned val, char **str);

     int
     dwarf_get_CHILDREN_name(unsigned val, char **str);

     int
     dwarf_get_DS_name(unsigned val, char **str);

     int
     dwarf_get_DSC_name(unsigned val, char **str);

     int
     dwarf_get_EH_name(unsigned val, char **str);

     int
     dwarf_get_END_name(unsigned val, char **str);

     int
     dwarf_get_FORM_name(unsigned val, char **str);

     int
     dwarf_get_ID_name(unsigned val, char **str);

     int
     dwarf_get_INL_name(unsigned val, char **str);

     int
     dwarf_get_LANG_name(unsigned val, char **str);

     int
     dwarf_get_LNE_name(unsigned val, char **str);

     int
     dwarf_get_LNS_name(unsigned val, char **str);

     int
     dwarf_get_MACINFO_name(unsigned val, char **str);

     int
     dwarf_get_OP_name(unsigned val, char **str);

     int
     dwarf_get_ORD_name(unsigned val, char **str);

     int
     dwarf_get_TAG_name(unsigned val, char **str);

     int
     dwarf_get_VIRTUALITY_name(unsigned val, char **str);

     int
     dwarf_get_VIS_name(unsigned val, char **str);

DESCRIPTION

     These functions return the symbolic name of a numeric DWARF constant.

     Argument val specifies the numeric value whose symbolic name is desired.

     Argument str should point to a location which will hold the returned NUL-terminated string containing the symbolic name of the specified
     value.

     The list of functions and the DWARF constants that they accept are:

     dwarf_get_ACCESS_name()	  DW_ACCESS_* constants.
     dwarf_get_AT_name()	  DW_AT_* constants.
     dwarf_get_ATE_name()	  DW_ATE_* constants.
     dwarf_get_CC_name()	  DW_CC_* constants.
     dwarf_get_CFA_name()	  DW_CFA_* constants.
     dwarf_get_CHILDREN_name()	  DW_CHILDREN_* constants.
     dwarf_get_DS_name()	  DW_DS_* constants.
     dwarf_get_DSC_name()	  DW_DSC_* constants.
     dwarf_get_EH_name()	  DW_EH_PE_* constants.
     dwarf_get_END_name()	  DW_END_* constants.
     dwarf_get_FORM_name()	  DW_FORM_* constants.
     dwarf_get_ID_name()	  DW_ID_* constants.
     dwarf_get_INL_name()	  DW_INL_* constants.
     dwarf_get_LANG_name()	  DW_LANG_* constants.
     dwarf_get_LNE_name()	  DW_LNE_* constants.
     dwarf_get_LNS_name()	  DW_LNS_* constants.
     dwarf_get_MACINFO_name()	  DW_MACINFO_* constants.
     dwarf_get_OP_name()	  DW_OP_* constants.
     dwarf_get_ORD_name()	  DW_ORD_* constants.
     dwarf_get_TAG_name()	  DW_TAG_* constants.
     dwarf_get_VIRTUALITY_name()  DW_VIRTUALITY_* constants.
     dwarf_get_VIS_name()	  DW_VIS_* constants.

RETURN VALUES

     These functions return DW_DLV_OK on success. If the DWARF constant denoted by argument val is not recognized, these function return
     DW_DLV_NO_ENTRY.

SEE ALSO

     dwarf(3)

BSD
								  April 22, 2011							       BSD
All times are GMT -4. The time now is 10:37 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy