Mdthbs

Why don't electrons take the shorter path in coils?

What to say to a student who has failed?

Can pay be witheld for hours cleaning up after closing time?

How do I request a longer than normal leave of absence period for my wedding?

Does travel insurance for short flight delays exist?

Did the British navy fail to take into account the ballistics correction due to Coriolis force during WW1 Falkland Islands battle?

Sun setting in East!

Why can't an Airbus A330 dump fuel in an emergency?

See details of old sessions

How to use "Du hast/ Du hattest'?

Is a player able to change alignment midway through an adventure?

Why is Boris Johnson visiting only Paris & Berlin if every member of the EU needs to agree on a withdrawal deal?

Why does The Ancient One think differently about Doctor Strange in Endgame than the film Doctor Strange?

What is the history of the university asylum law?

Why were movies shot on film shot at 24 frames per second?

Does norwegian.no airline overbook flights?

How should I face my manager if I make a mistake because a senior coworker explained something incorrectly to me?

Are there account age or level requirements for obtaining special research?

In an emergency, how do I find and share my position?

Singleton Design Pattern implementation in a not traditional way

Is there any practical application for performing a double Fourier transform? ...or an inverse Fourier transform on a time-domain input?

Start from ones

What is the hex versus octal timeline?

Why is my Earth simulation slower than the reality?

Bash - run one script when previous is sucessful else run another script?

Bash - how to run a command after the previous finished?Run a script after some command were executedCron automated bash script to run run 1 bash script then another, plus integrity checkDouble click Linux Bash Script and debug with pause commandsBash script to extract message id and force sendBash trap in function, but executed when entire script exits?

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

1

I think my question is similar to this one but with one extrat step - say I have 3 scripts:

1. main_script.sh


2. report_success.sh


3. report_failure.sh

How can I do something like this pseudo-code does:

if (main_script.sh finished without error):

run report_success.sh

else:

run report_failure.sh

?

Thanks!

bash shell-script control-flow

share|improve this question

edited 2 days ago

user3768495

asked 2 days ago

user3768495user3768495

16466 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I guess you are aware tht the syntax you show is not bash. It looks like python.
  
  – guillermo chamorro
  2 days ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for your comment. I just edited my question.
  
  – user3768495
  2 days ago
  

  
  
  
  

add a comment | 

1

I think my question is similar to this one but with one extrat step - say I have 3 scripts:

1. main_script.sh


2. report_success.sh


3. report_failure.sh

How can I do something like this pseudo-code does:

if (main_script.sh finished without error):

run report_success.sh

else:

run report_failure.sh

?

Thanks!

bash shell-script control-flow

share|improve this question

edited 2 days ago

user3768495

asked 2 days ago

user3768495user3768495

16466 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I guess you are aware tht the syntax you show is not bash. It looks like python.
  
  – guillermo chamorro
  2 days ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for your comment. I just edited my question.
  
  – user3768495
  2 days ago
  

  
  
  
  

add a comment | 

I think my question is similar to this one but with one extrat step - say I have 3 scripts:

1. main_script.sh


2. report_success.sh


3. report_failure.sh

How can I do something like this pseudo-code does:

if (main_script.sh finished without error):

run report_success.sh

else:

run report_failure.sh

?

Thanks!

bash shell-script control-flow

share|improve this question

edited 2 days ago

user3768495

asked 2 days ago

user3768495user3768495

16466 bronze badges

if (main_script.sh finished without error):

run report_success.sh

else:

run report_failure.sh

share|improve this question

edited 2 days ago

user3768495

asked 2 days ago

user3768495user3768495

16466 bronze badges

share|improve this question

edited 2 days ago

user3768495

asked 2 days ago

user3768495user3768495

16466 bronze badges

asked 2 days ago

user3768495user3768495

16466 bronze badges

asked 2 days ago

user3768495user3768495

16466 bronze badges

3 Answers
3

active

oldest

votes

2

Assuming your main_script.sh is fairly standard and passes a 0 for a successful run and 1 for an unsuccessful run, you can probe the status via $? like so:

./main_script.sh

if [ $? -eq 0 ]; then

    ./report_success.sh

else

    ./report_failure.sh

fi

share|improve this answer

answered 2 days ago

Jason K LaiJason K Lai

27977 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  There is almost never a reason to compare or even use $? directly, unless you need to save it for later (which you don't need to here).
  
  – Kusalananda♦
  2 days ago
  

  
  
  
  

add a comment | 

4

if main_script.sh; then

    report_success.sh

else

    report_failure.sh

fi

This uses the exit status of main_script.sh to determine whether it was successful (exit status 0) or not (exit status non-zero) and then runs the appropriate report script.

share|improve this answer

edited 2 days ago

Kusalananda♦

160k1818 gold badges318318 silver badges504504 bronze badges

answered 2 days ago

dhanlindhanlin

4144 bronze badges

New contributor

dhanlin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

1

It's as simple as this:

true && echo ok || echo fail

false && echo ok || echo fail

A typical command may return null (as true does) or may return not null (as false does) depending on whether the operation succeeded or failed.

./main_script.sh && ./report_success.sh || ./report_failure.sh

If you had to run several commands for the ok or fail case, use braces. No need for several scripts:

./main_script.sh && { echo ok ; echo ok2 } || { echo fail ; echo fail2 ; }

share|improve this answer

answered 2 days ago

JankaJanka

30655 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note that your commands with && and || would run ./report_failure.sh if either of ./main_script.sh or ./report_success.sh failed. This is not the same thing as an explicit if-then-else.
  
  – Kusalananda♦
  2 days ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Well, yes. But failure of the success report is a failure, too.
  
  – Janka
  2 days ago
  

  
  
  
  

add a comment | 

Your Answer

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "106"
};
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: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
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/3.0/"u003ecc by-sa 3.0 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%2funix.stackexchange.com%2fquestions%2f536539%2fbash-run-one-script-when-previous-is-sucessful-else-run-another-script%23new-answer', 'question_page');
}
);

Post as a guest

Name

Email

Required, but never shown

2

Assuming your main_script.sh is fairly standard and passes a 0 for a successful run and 1 for an unsuccessful run, you can probe the status via $? like so:

./main_script.sh

if [ $? -eq 0 ]; then

    ./report_success.sh

else

    ./report_failure.sh

fi

share|improve this answer

answered 2 days ago

Jason K LaiJason K Lai

27977 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  There is almost never a reason to compare or even use $? directly, unless you need to save it for later (which you don't need to here).
  
  – Kusalananda♦
  2 days ago
  

  
  
  
  

add a comment | 

2

Assuming your main_script.sh is fairly standard and passes a 0 for a successful run and 1 for an unsuccessful run, you can probe the status via $? like so:

./main_script.sh

if [ $? -eq 0 ]; then

    ./report_success.sh

else

    ./report_failure.sh

fi

share|improve this answer

answered 2 days ago

Jason K LaiJason K Lai

27977 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  There is almost never a reason to compare or even use $? directly, unless you need to save it for later (which you don't need to here).
  
  – Kusalananda♦
  2 days ago
  

  
  
  
  

add a comment | 

Assuming your main_script.sh is fairly standard and passes a 0 for a successful run and 1 for an unsuccessful run, you can probe the status via $? like so:

./main_script.sh

if [ $? -eq 0 ]; then

    ./report_success.sh

else

    ./report_failure.sh

fi

share|improve this answer

answered 2 days ago

Jason K LaiJason K Lai

27977 bronze badges

./main_script.sh

if [ $? -eq 0 ]; then

    ./report_success.sh

else

    ./report_failure.sh

fi

share|improve this answer

answered 2 days ago

Jason K LaiJason K Lai

27977 bronze badges

answered 2 days ago

Jason K LaiJason K Lai

27977 bronze badges

answered 2 days ago

Jason K LaiJason K Lai

27977 bronze badges

4

if main_script.sh; then

    report_success.sh

else

    report_failure.sh

fi

This uses the exit status of main_script.sh to determine whether it was successful (exit status 0) or not (exit status non-zero) and then runs the appropriate report script.

share|improve this answer

edited 2 days ago

Kusalananda♦

160k1818 gold badges318318 silver badges504504 bronze badges

answered 2 days ago

dhanlindhanlin

4144 bronze badges

New contributor

dhanlin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

4

if main_script.sh; then

    report_success.sh

else

    report_failure.sh

fi

This uses the exit status of main_script.sh to determine whether it was successful (exit status 0) or not (exit status non-zero) and then runs the appropriate report script.

share|improve this answer

edited 2 days ago

Kusalananda♦

160k1818 gold badges318318 silver badges504504 bronze badges

answered 2 days ago

dhanlindhanlin

4144 bronze badges

New contributor

dhanlin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

if main_script.sh; then

    report_success.sh

else

    report_failure.sh

fi

This uses the exit status of main_script.sh to determine whether it was successful (exit status 0) or not (exit status non-zero) and then runs the appropriate report script.

share|improve this answer

edited 2 days ago

Kusalananda♦

160k1818 gold badges318318 silver badges504504 bronze badges

answered 2 days ago

dhanlindhanlin

4144 bronze badges

New contributor

dhanlin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

if main_script.sh; then

    report_success.sh

else

    report_failure.sh

fi

share|improve this answer

edited 2 days ago

Kusalananda♦

160k1818 gold badges318318 silver badges504504 bronze badges

answered 2 days ago

dhanlindhanlin

4144 bronze badges

New contributor

dhanlin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 2 days ago

Kusalananda♦

160k1818 gold badges318318 silver badges504504 bronze badges

edited 2 days ago

Kusalananda♦

160k1818 gold badges318318 silver badges504504 bronze badges

answered 2 days ago

dhanlindhanlin

4144 bronze badges

New contributor

dhanlin is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 2 days ago

dhanlindhanlin

4144 bronze badges

1

It's as simple as this:

true && echo ok || echo fail

false && echo ok || echo fail

A typical command may return null (as true does) or may return not null (as false does) depending on whether the operation succeeded or failed.

./main_script.sh && ./report_success.sh || ./report_failure.sh

If you had to run several commands for the ok or fail case, use braces. No need for several scripts:

./main_script.sh && { echo ok ; echo ok2 } || { echo fail ; echo fail2 ; }

share|improve this answer

answered 2 days ago

JankaJanka

30655 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note that your commands with && and || would run ./report_failure.sh if either of ./main_script.sh or ./report_success.sh failed. This is not the same thing as an explicit if-then-else.
  
  – Kusalananda♦
  2 days ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Well, yes. But failure of the success report is a failure, too.
  
  – Janka
  2 days ago
  

  
  
  
  

add a comment | 

1

It's as simple as this:

true && echo ok || echo fail

false && echo ok || echo fail

A typical command may return null (as true does) or may return not null (as false does) depending on whether the operation succeeded or failed.

./main_script.sh && ./report_success.sh || ./report_failure.sh

If you had to run several commands for the ok or fail case, use braces. No need for several scripts:

./main_script.sh && { echo ok ; echo ok2 } || { echo fail ; echo fail2 ; }

share|improve this answer

answered 2 days ago

JankaJanka

30655 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note that your commands with && and || would run ./report_failure.sh if either of ./main_script.sh or ./report_success.sh failed. This is not the same thing as an explicit if-then-else.
  
  – Kusalananda♦
  2 days ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Well, yes. But failure of the success report is a failure, too.
  
  – Janka
  2 days ago
  

  
  
  
  

add a comment | 

It's as simple as this:

true && echo ok || echo fail

false && echo ok || echo fail

A typical command may return null (as true does) or may return not null (as false does) depending on whether the operation succeeded or failed.

./main_script.sh && ./report_success.sh || ./report_failure.sh

If you had to run several commands for the ok or fail case, use braces. No need for several scripts:

./main_script.sh && { echo ok ; echo ok2 } || { echo fail ; echo fail2 ; }

share|improve this answer

answered 2 days ago

JankaJanka

30655 bronze badges

share|improve this answer

answered 2 days ago

JankaJanka

30655 bronze badges

answered 2 days ago

JankaJanka

30655 bronze badges

answered 2 days ago

JankaJanka

30655 bronze badges