Add n characters at end of line depending on character count for line
 

Hello,

I have a flat file where I expect to have 5 values delimited by 4 commas ",' :
agf,sdya,geg,fgd,gdfgr

but sometimes I have the following:
agf,sdya,geg,fgd
agf,sdya,geg
agf,sdya
agf

For those lines, I wanna append commas at the end of the lines in order to always have a total of 4 commas:
agf,sdya,geg,fgd,
agf,sdya,geg,,
agf,sdya,,,
agf,,,,

The following awk command already gives me the count number of "," for each line:
awk -F\, '{print NF-1}' "MyFile"

But I am not sure where to go from there.
Basically I want to do the following;
If CommaCount For CurrentLine != 4 Then Append(4 - "number of commas found')CommasToLine
Else CheckNextLine.

Thanks for your help ! :)

How about:

wow, gotta learn awk !
It looks so simple =)
Thank you !

Let's hope there's never more than 5 fields on input ... :tisk:

Well I was only going to the requirements set :)