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Top Forums Shell Programming and Scripting Read csv file, convert the data and make one text file in UNIX shell scripting Post 302984835 by RJG on Tuesday 1st of November 2016 09:16:13 AM
Old 11-01-2016
Read csv file, convert the data and make one text file in UNIX shell scripting

I have input data looks like this which is a part of a csv file
Code:
7,1265,76548,"0102:04"
8,1266,76545,"0112:04"

I need to make the output data should look like this and the output data will be part of text file:

Code:
7|1265000  |7654899   |A|
8|12660000   |76545999    |B|

The logic behind the output data

1st output field= 1st input field

2nd output field= 2nd input field+(1st input field-length(2nd input field))zeros+(1st input field-length(3rd input field))spaces

3rd output field= 3rd input field+(1st input field-length(3rd input field))nines+(1st input field-length(2nd input field))spaces

4th Output field=
If the 3rd field of the quoted string is 0, 4th output will be A
If the 3rd field of the quoted string is 1, 4th output will be B


How can I do it using UNIX shell scripting?



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

Last edited by RudiC; 11-01-2016 at 10:27 AM.. Reason: Added CODE tags.
 

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fwtmp(1M)																 fwtmp(1M)

NAME
fwtmp, wtmpfix - manipulate connect accounting records SYNOPSIS
[files] DESCRIPTION
fwtmp reads from the standard input and writes to the standard output, converting binary records of the type found in to formatted ASCII records. The ASCII version is useful to enable editing, via ed(1), bad records or for general purpose maintenance of the file. The argument is used to denote that input is in ASCII form, and output is to be written in binary form. The arguments and are independent, respectively specifying ASCII input and binary output. Therefor, is an ASCII to ASCII copy and is a binary to binary copy. should be used for reading If is not used, structure is read. wtmpfix examines the standard input or named files in format, corrects the time/date stamps to make the entries consistent, and writes to the stan- dard output. A can be used in place of files to indicate the standard input. If time/date corrections are not performed, will fault when it encounters certain date-change records. Each time the date is set, a pair of date change records is written to The first record is the old date denoted by the string old time placed in the line field and the flag placed in the type field of the structure. The second record specifies the new date, and is denoted by the string placed in the line field and the flag placed in the type field. uses these records to synchronize all time stamps in the file. nullifies date change records when writing to the standard output by setting the time field of the structure in the old date change record equal to the time field in the new date change record. This prevents and from factoring in a date change record pair more than once. In addition to correcting time/date stamps, wtmpfix checks the validity of the name field to ensure that it consists solely of alphanumeric characters or spaces. If it encounters a name that is considered invalid, it changes the login name to and writes a diagnostic to the standard error. This minimizes the risk that will fail when processing connect accounting records. DIAGNOSTICS
wtmpfix generates the following diagnostics messages: WARNINGS
generates no errors, even on garbage input. FILES
SEE ALSO
ed(1), acct(1M), acctcms(1M), acctcom(1M), acctcon(1M), acctmerg(1M), acctprc(1M), acctsh(1M), runacct(1M), acct(2), acct(4), utmp(4), wtmps(4). STANDARDS CONFORMANCE
fwtmp(1M)
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