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Full Discussion: Removing letters after a certain character within a range of columns
Top Forums UNIX for Beginners Questions & Answers Removing letters after a certain character within a range of columns Post 302988794 by daashti on Tuesday 3rd of January 2017 04:17:12 AM
Old 01-03-2017
Thanks for the quick reply,

I did
Code:
 sed 's/:.*//' file.txt > file1.txt

However, this replaced only one of the columns then the rest all were empty.

Another bad idea was to cut the first 3 letter from the file.txt > file1.txt and re-join desired columns from file.txt to make file3.txt

It can be done but very lousy solution from my end. I thought of using awk find ":" replace with "" on specific columns 10th-827th but didnt know how to do so?
 

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LEARN ABOUT CENTOS

atr_analysis

ATR_ANALYSIS(1p)                                                   User Commands                                                  ATR_ANALYSIS(1p)

NAME

       ATR_analysis - analyse a smart card ATR

SYNOPSIS

       ATR_analysis [ATRstring]

DESCRIPTION

       ATR_analysis is used to parse the ATR (Answer To Reset) sent by a smart card.

       The command also tries to find the card model using an ATR database stored in a text file smartcard_list.txt.

       The smartcard_list.txt file is searched in ./, /usr/local/pcsc/ and /usr/share/pcsc/ directories.

       Exemple:
        $ ATR_analysis '3B A7 00 40 18 80 65 A2 08 01 01 52'
        ATR: 3B A7 00 40 18 80 65 A2 08 01 01 52
        + TS = 3B --> Direct Convention
        + T0 = A7, Y(1): 1010, K: 7 (historical bytes)
          TB(1) = 00 --> Programming Param P: 0, I: 0
          TD(1) = 40 --> Y(i+1) = 0100, Protocol T = 0
        -----
          TC(2) = 18 --> Work waiting time: 960 x 24 x (Fi/F)
        + Historical bytes: 80 65 A2 08 01 01 52

        Possibly identified card:
        3B A7 00 40 18 80 65 A2 08 01 01 52
               Gemplus GPK8000

BUGS

       Maybe many bugs since I am not a ISO 7816 expert.

FILES

       smartcard_list.txt

SEE ALSO

       pcscd(8), pcsc_scan(1)

AUTHOR

       Ludovic Rousseau <ludovic.rousseau@free.fr>

Version: 1.3                                                       October 2005                                                   ATR_ANALYSIS(1p)
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