Search and replace in two different files


 
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# 1  
Old 04-26-2012
Search and replace in two different files

Hi there,

i got the following problem. i need a bash script to correct e-mail addresses in an csv. i got a huge csv like this

Code:
A                             B          C                D
heiner.holber.somewhere.ch    heiner    holber         heiner.holber@somewhere.ch

So A is the wrong Address and D ist the corrected Addressfield

No i want to correct this with a bash in the second csv file. So find A in the second file and correct it with D. The second file is not static.

Any idear? Thanks in Advance

Ralf

Moderator's Comments:
Mod Comment Please do not use actual email addresses in a post. link: How to use [code] tags

Last edited by Scrutinizer; 04-26-2012 at 11:22 AM.. Reason: code tags / email address
# 2  
Old 04-26-2012
Hi and welcome, what did you try and where are you stuck?
# 3  
Old 04-26-2012
i`m realy new in bash programming, so i stuck at the beginning Smilie

---------- Post updated at 04:05 PM ---------- Previous update was at 03:16 PM ----------

i found that to show the diff, but how can i read the columns?

Code:
diff <(sort file1) <(sort file2)

# 4  
Old 04-30-2012
i write now the two first columns in a new file. now i have the e-mail address in the first column and if anything to correct, the second column with the new address

Code:
awk -F ";" '{print $1, $2}' test_org.csv > test-awk.csv

looks like

Code:
A.................................................                                                                             B 
heiner.holber.somewhere.ch..........              heiner.holber@somewhere.ch
heinz.hack@somewhere.ch
rosi_rodel@somewhere.ch                 ...........rosi.rodel@somewhere.ch

now i want to search in a second .csv file for the fields in column A and correct it there with the Field of B.
Please Help

---------- Post updated at 04:01 PM ---------- Previous update was at 01:40 PM ----------

Code:
awk -F ";" '{print $1, $2}' test_org.csv > test-awk.csv

is it possible to print out only this line, who have an entry on the second column?

nobody an idear??

Moderator's Comments:
Mod Comment Please click this link: How to use [code][/code] tags

Last edited by Scrutinizer; 05-01-2012 at 02:35 AM..
# 5  
Old 05-01-2012
Hi, it is not clear to me what you mean. What exactly doe the two csv files look like? With what character are they separated? Please give samples of all three.
# 6  
Old 05-02-2012
hi Scrutinizer,

some backround information. we send a newsletter from our company. so many mails are running back, while the person changed the company, or the email was not correct. we have a receivers.csv where those people are listed right or wrong with subscribed or unsubscribed. the receivers.csv is a copy of the life receivers.csv on the webserver, so if we correct the things in the copy, the live csv would be filled up or changed.
now on the first column is the email address right or wrong, on the second column i want to write the right email address if its wrong. so when all the email addresses are corrected, i want to change with that script the life receivers.csv.
if there is an entry on the second column with an correted address so write it on the live .csv on the first column. the filds are separeted with this ; , i don`t know the name of it.

molker

Last edited by Scrutinizer; 05-02-2012 at 04:20 AM.. Reason: icode highlight of semicolon
# 7  
Old 05-02-2012
Hi molker, so semicolon separated? In that case try this:
Code:
awk -F";" '$2{print $1,$2}' infile

Remember, a good example says more than 161 words..
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