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Top Forums UNIX for Beginners Questions & Answers Compare two files, if the columns are same then replace next column with some value Post 303045714 by looty on Friday 10th of April 2020 09:29:49 AM
Old 04-10-2020
Compare two files, if the columns are same then replace next column with some value

Hi Team,

As i'm new to the shell scripting, i stuck in a place to replace a column valuein a file when compared with other file. Could you please help me to work on this?
I have 2 files test1.csv and test2.csv. I need to replace empdep column in test1.csv if it has the value as "sign*". I have second file test2.csv which have the value need to replace that" sign*".

Note : I'm using ksh and test1.csv have around 2,048,576 rows and test2.csv have 10000 rows

test1.csv
Code:
empname,place,empdep
aaaa ,city1,001
bbbb,city2,sign-1
dddd,city1,005
ffff,city5,sign-2
hhhh,city7,sign-1

test2.csv
Code:
empname ,new
aaaa ,001 
bbbb,002
cccc,003
dddd ,005
eeee,006
ffff,007
gggg,008
hhhh,009

Expected Result:
Code:
empname,place,empdep
aaaa ,city1,001
bbbb,city2,002
dddd,city1,005
ffff,city5,007
hhhh,city7,009

Moderator's Comments:
Mod Comment
Please use code tags when posting data and code samples!

Last edited by vgersh99; 04-10-2020 at 10:58 AM.. Reason: code tags, please!
 

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ECACCESS-FILE-MOVE(1p)					User Contributed Perl Documentation				    ECACCESS-FILE-MOVE(1p)

NAME
ecaccess-file-move - Move or Rename ECaccess Files SYNOPSIS
ecaccess-file-move -version|-help|-manual ecaccess-file-move [-debug] source-ecaccess-file target-ecaccess-file DESCRIPTION
Allow moving an ECaccess File. When the move occurs within the same ECaccess File System then it is a rename. When the move occurs across two different ECaccess File Systems then first a copy is done and then a delete of the original file is done (e.g. similar to ecaccess- file-copy ... -erase). The source-ecaccess-file and target-ecaccess-file are in the form [domain:][/user-id/]path. Please read the "Shell commands -> File Management" section of the "ecaccess" guide for more information on the ECaccess File System. ARGUMENTS
source-ecaccess-file The source ECaccess File name. target-ecaccess-file The target ECaccess File name. OPTIONS
-version Display version number and exits. -help Print a brief help message and exits. -manual Prints the manual page and exits. -debug Display the SOAP messages exchanged. EXAMPLES
ecaccess-file-move ec:test1.txt ec:test2.txt Rename the test1.txt file in the ECFS directory of the authenticated user in test2.txt. ecaccess-file-move ec:test1.txt home:test2.txt Copy the test1.txt file from the ECFS directory of the authenticated user to the test2.txt file in the $HOME directory of the authenticated user, then delete the test1.txt file from ECFS. SEE ALSO
ecaccess-file-delete, ecaccess-file-get, ecaccess-file-mget, ecaccess-file-modtime, ecaccess-file-mput, ecaccess-file-rmdir, ecaccess-file- copy, ecaccess-file-dir, ecaccess-file-mdelete, ecaccess-file-mkdir, ecaccess-file-chmod, ecaccess-file-put, ecaccess-file-size and ecaccess. perl v5.14.2 2012-04-16 ECACCESS-FILE-MOVE(1p)
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