Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Csv file parsing and validating

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Csv file parsing and validating
# 22  
Old 04-21-2014
Verified this code and it provided the expected output for the given input
Code:
awk -F "," 'NR == FNR{split($2, a, "\)|\("); d[NR] = a[1]; l[NR] = a[2]; n[NR] = ($3 == "NOT NULL") ? 1 : 0; next}
  {for(i = 1; i <= NF; i++)
    {if(((d[i] == "Numeric" && (($i + 0) == $i || $i == "")) || d[i] == "String") && (length($i) <= l[i]) && (length($i) >= n[i]))
	  {f = 1} else {f = 0};
	if(f == 0) {print $0 > "badrec"; next}} print $0 > "goodrec"}' cf.txt df.txt

# 23  
Old 04-22-2014
Hi,
The code below throwing me an error and m not not able get the output
Code:
awk -F "," 'NR == FNR { split($2, a, "\)|\("); d[NR] = a[1]; l[NR] = a[2]; n[NR] = ($3 == "NOT NULL") ? 1 : 0; next}
 {for(i = 1; i <= NF; i++)
  {if(((d[i] == "Numeric" && (($i + 0) == $i || $i == "")) || d[i] == "String") && (length($i) <= l[i]) && (length($i) >= n[i]))
      {f = 1} else {f = 0};
    if(f == 0) {print $0 > "badrec"; next}} print $0 > "goodrec"}' cf.txt df.txt

The error thrown :
Quote:
awk: warning: escape sequence `\)' treated as plain `)'
awk: warning: escape sequence `\(' treated as plain `('
awk: (FILENAME=cf.txt FNR=1) fatal: Unmatched ( or \(: /)|(/
# 24  
Old 04-22-2014
Code:
awk -F "," 'NR == FNR {gsub("[)(]", "-", $2); split($2, a, "-"); d[NR] = a[1]; l[NR] = a[2]; n[NR] = ($3 == "NOT NULL") ? 1 : 0; next}
 {for(i = 1; i <= NF; i++)
  {if(((d[i] == "Numeric" && (($i + 0) == $i || $i == "")) || d[i] == "String") && (length($i) <= l[i]) && (length($i) >= n[i]))
      {f = 1} else {f = 0};
    if(f == 0) {print $0 > "badrec"; next}} print $0 > "goodrec"}' cf.txt df.txt

# 25  
Old 04-22-2014
Hi, Still facing an issue. Not generating badrec and goodrec files.
Throwing an error:
Quote:
awk: (FILENAME=df.txt FNR=1) fatal: attempt to use array `d' in a scalar context
# 26  
Old 04-22-2014
I ran the same code and below is the output
Code:
$ cat conf
id,Numeric(2),NOT NULL
name,String(20)
state,String(10),NOT NULL
street_No,Numeric(4)
$ cat data
abc,john,MI,201
22,Lilly,CA,405
33,Richard,CA,21Q
444,Reet5,NY,258
55,Taylor,GI,3333
66,Merry,,3333
77,,FL,22
$ awk -F "," 'NR == FNR {gsub("[)(]", "-", $2); split($2, a, "-"); d[NR] = a[1]; l[NR] = a[2]; n[NR] = ($3 == "NOT NULL") ? 1 : 0; next}
 {for(i = 1; i <= NF; i++)
  {if(((d[i] == "Numeric" && (($i + 0) == $i || $i == "")) || d[i] == "String") && (length($i) <= l[i]) && (length($i) >= n[i]))
      {f = 1} else {f = 0};
    if(f == 0) {print $0 > "badrec"; next}} print $0 > "goodrec"}' conf data
$ cat goodrec
22,Lilly,CA,405
55,Taylor,GI,3333
77,,FL,22
$ cat badrec
abc,john,MI,201
33,Richard,CA,21Q
444,Reet5,NY,258
66,Merry,,3333
$

# 27  
Old 04-22-2014
Hi,
Thank you so much.Its working now and able to get the proper output now.
I have one more thing to ask. in the below code we are using split function:
Code:
split($2, a, "-")

But why we are giving "-" as a delimiter ? Can u please explain the code.

Thanks,
Shree
# 28  
Old 04-22-2014
You had issues splitting the data type field in schema file using the delimited '(' or ')' (issue depends on unix flavor).
Hence, I have converted the braces to '-'
now, your schema file datatype firld becomes as below
Code:
state,String-10-,NOT NULL

and I am splitting that with '-' so that I can seperate type and length
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help with Parsing a CSV File

Hello All, I have an input CSV file like below, where first row data can be in different position after every run of the tool, i.e. pzTest in below example is in column 1, but it can be also in 3 column and same for all the headers in the first row. pzTest, pzExtract, pxUpdate, pzInfo... (1 Reply)
Discussion started by: asirohi
1 Replies

2. Shell Programming and Scripting

Parsing csv file and pass to a variable

Hi, Newbie here and I need some help to parse a csv file that contains fields separated by ",". What I need to achieve here is, read the 1 line file and extract 240 fields and pass to a variable and then read the next 240 fields and pass to a variable, over and over. If anyone can assist that... (4 Replies)
Discussion started by: tmslixx
4 Replies

3. Shell Programming and Scripting

Help required in parsing a csv file

Hi Members, I am stuck with the following problem. Request your kind help I have an csv file which contains, 1 header record, data records and 1 footer record. Sample is as below Contents of cm_update_file_101010.csv -------------------------------------------------- ... (6 Replies)
Discussion started by: ramakanth_burra
6 Replies

4. Shell Programming and Scripting

Parsing a CSV file and deleting all rows on condition

Hello list, I am working on a csv file which contains two fields per record which contain IP addresses. What I am trying to do is find records which have identical fields(IP addresses) which occur 4(four) times, and if they do, delete all records with that specific identical field(ip address). ... (4 Replies)
Discussion started by: landossa
4 Replies

5. Shell Programming and Scripting

Parsing complicated CSV file with sed

Yes, there is a great doc out there that discusses parsing csv files with sed, and this topic has been covered before but not enough to answer my question (unix.com forums). I'm trying to parse a CSV file that has optional quotes like the following: "Apple","Apples, are fun",3.60,4.4,"I... (3 Replies)
Discussion started by: analog999
3 Replies

6. Shell Programming and Scripting

Parsing a CSV File

Hey guys, I'm in the process of learning PHP and BASH scripting. I'm getting there, slowly ;) I would like some help with parsing a CSV file. This file contains a list of hostnames, dates, and either Valid, Expired, or Expired Soon in the last column. Basically, I want to parse the file,... (12 Replies)
Discussion started by: dzl
12 Replies

7. Shell Programming and Scripting

2 problems: Mailing CSV file / parsing CSV for display

I have been trying to find a good solution for this seemingly simple task for 2 days, and I'm giving up and posting a thread. I hope someone can help me out! I'm on HPUX, using sqlplus, mailx, awk, have some other tools available, but can't install stuff that isn't already in place (without a... (6 Replies)
Discussion started by: soldstatic
6 Replies

8. Shell Programming and Scripting

CSV file parsing and validation

I have a CSV file that needs to through two seperate processes (in the end there will be 2 files (Dload.unl and Tload.unl and we'll say the input file name is mass.csv). I have a processfile() function that will call the process Dload funtion. In Dload I want to read mass.csv into Dload and then... (1 Reply)
Discussion started by: dolo21taf
1 Replies

9. Shell Programming and Scripting

Parsing a csv file

I am trying to parse a csv file in the below 'name-value pair' format and then use the values corresponding to the name. Type:G,Instance:instance1,FunctionalID:funcid,Env:dev,AppName:appname... (6 Replies)
Discussion started by: chiru_h
6 Replies

10. Shell Programming and Scripting

Help in parsing a CSV file with Shell script

I have a CSV file which contains number series as one of the fields. Some of the records of the field look like : 079661/3 I have to convert the above series as 079661 079662 079663 and store it as 3 different records. Looking for help on how to achieve this. Am a newbie at Shell... (10 Replies)
Discussion started by: mihirk
10 Replies
Login or Register to Ask a Question