Styjun

Do wheelchair-accessible aircraft exist?

Hangman Game (YAHG)

Medic abilities

Is the mass of paint relevant in rocket design?

Averting Bathos

My Project Manager does not accept carry-over in Scrum, Is that normal?

Does the Way of Shadow monk's Shadow Step feature count as a magical ability?

What did Jesse Pinkman mix into Walt's coffee?

What secular civic space would pioneers build for small frontier towns?

Lost Update Understanding

How can this Stack Exchange site have an animated favicon?

Why does this image of Jupiter look so strange?

Could Apollo astronauts see city lights from the moon?

Which lens has the same capability of lens mounted in Nikon P1000?

Is it impolite to ask for an in-flight catalogue with no intention of buying?

Difference between types of yeast

May I know how to stop these death waves?

Golf (6-card) Golf!

Why, even after his imprisonment, people keep calling Hannibal Lecter "Doctor"?

Does "as soon as" imply simultaneity?

A famous scholar sent me an unpublished draft of hers. Then she died. I think her work should be published. What should I do?

Clear text passwords in Unix

If a spaceship ran out of fuel somewhere in space between Earth and Mars, does it slowly drift off to Sun?

How can I indicate the first and the last reference number written in a page of the bibliography in the header of the page?

Unix File updating using shell scripting

Check if a directory exists in a shell scriptUnix shell script find out which directory the script file resides?What's a concise way to check that environment variables are set in a Unix shell script?How can I pretty-print JSON in a shell script?Why should text files end with a newline?How to run a shell script on a Unix console or Mac terminal?In the shell, what does “ 2>&1 ” mean?How to do a logical OR operation in shell scriptingUnix shell scripting - multiple file concatenateFinding differences between 2 csv files using unix command or shell scripting

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

0

I am having a requirement of updating a file with the latest variables or numbers considering a text file

file1

dan-2222
priya-23
rahul-288
rohit-233

file2

priya-22
rahul-288
rohit-230

I need the file2 to be updated with the values of file1 without any change in order using Unix.

I have used diff command and it is giving the different variables in both the files

unix

share|improve this question

edited Mar 28 at 22:05

Shakespear

1,07233 gold badges1414 silver badges2121 bronze badges

asked Mar 28 at 17:44

Surendra GopiSurendra Gopi

1

add a comment
 | 

0

I am having a requirement of updating a file with the latest variables or numbers considering a text file

file1

dan-2222
priya-23
rahul-288
rohit-233

file2

priya-22
rahul-288
rohit-230

I need the file2 to be updated with the values of file1 without any change in order using Unix.

I have used diff command and it is giving the different variables in both the files

unix

share|improve this question

edited Mar 28 at 22:05

Shakespear

1,07233 gold badges1414 silver badges2121 bronze badges

asked Mar 28 at 17:44

Surendra GopiSurendra Gopi

1

add a comment
 | 

I am having a requirement of updating a file with the latest variables or numbers considering a text file

file1

dan-2222
priya-23
rahul-288
rohit-233

file2

priya-22
rahul-288
rohit-230

I need the file2 to be updated with the values of file1 without any change in order using Unix.

I have used diff command and it is giving the different variables in both the files

unix

share|improve this question

edited Mar 28 at 22:05

Shakespear

1,07233 gold badges1414 silver badges2121 bronze badges

asked Mar 28 at 17:44

Surendra GopiSurendra Gopi

1

dan-2222
priya-23
rahul-288
rohit-233

priya-22
rahul-288
rohit-230

share|improve this question

edited Mar 28 at 22:05

Shakespear

1,07233 gold badges1414 silver badges2121 bronze badges

asked Mar 28 at 17:44

Surendra GopiSurendra Gopi

1

share|improve this question

edited Mar 28 at 22:05

Shakespear

1,07233 gold badges1414 silver badges2121 bronze badges

asked Mar 28 at 17:44

Surendra GopiSurendra Gopi

1

edited Mar 28 at 22:05

Shakespear

1,07233 gold badges1414 silver badges2121 bronze badges

edited Mar 28 at 22:05

Shakespear

1,07233 gold badges1414 silver badges2121 bronze badges

asked Mar 28 at 17:44

Surendra GopiSurendra Gopi

1

asked Mar 28 at 17:44

Surendra GopiSurendra Gopi

1

1 Answer
1

active

oldest

votes

0

Does this help you?

for line in $(cat file1); do
 echo $line | IFS=- read var val
 sed -n "/$var/ s/.*/$var-$val/p" < file2; 
done > file2.new

file2.new should contain what you need.

share|improve this answer

answered Mar 28 at 22:35

geckosgeckos

1,90511 gold badge1414 silver badges2727 bronze badges

add a comment
 | 

Your Answer

StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/4.0/"u003ecc by-sa 4.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f55403902%2funix-file-updating-using-shell-scripting%23new-answer', 'question_page');

);

Post as a guest

Name

Email

Required, but never shown

0

Does this help you?

for line in $(cat file1); do
 echo $line | IFS=- read var val
 sed -n "/$var/ s/.*/$var-$val/p" < file2; 
done > file2.new

file2.new should contain what you need.

share|improve this answer

answered Mar 28 at 22:35

geckosgeckos

1,90511 gold badge1414 silver badges2727 bronze badges

add a comment
 | 

0

Does this help you?

for line in $(cat file1); do
 echo $line | IFS=- read var val
 sed -n "/$var/ s/.*/$var-$val/p" < file2; 
done > file2.new

file2.new should contain what you need.

share|improve this answer

answered Mar 28 at 22:35

geckosgeckos

1,90511 gold badge1414 silver badges2727 bronze badges

add a comment
 | 

Does this help you?

for line in $(cat file1); do
 echo $line | IFS=- read var val
 sed -n "/$var/ s/.*/$var-$val/p" < file2; 
done > file2.new

file2.new should contain what you need.

share|improve this answer

answered Mar 28 at 22:35

geckosgeckos

1,90511 gold badge1414 silver badges2727 bronze badges

for line in $(cat file1); do
 echo $line | IFS=- read var val
 sed -n "/$var/ s/.*/$var-$val/p" < file2; 
done > file2.new

share|improve this answer

answered Mar 28 at 22:35

geckosgeckos

1,90511 gold badge1414 silver badges2727 bronze badges

answered Mar 28 at 22:35

geckosgeckos

1,90511 gold badge1414 silver badges2727 bronze badges

answered Mar 28 at 22:35

geckosgeckos

1,90511 gold badge1414 silver badges2727 bronze badges