bash script exiting when setting variable to curl output












1















Trying to create a function to check if there are issues with the SSL on a webpage.In the specific scenario we've setup the expected output for curl https://domain includes:



curl: (60) SSL certificate problem: self signed certificate


...we are using grep, as per the line below to to set the SSL_STATUS variable to that line which we will then pump through an if statement. Problem is that it sets the variable and then drops out of the script for no apparent reason:



+ https_status
++ curl https://steelrain.eu
++ grep 'SSL certificate problem'
+ SSL_STATUS='curl: (60) SSL certificate problem: self signed certificate'


Having tested this is not the result of the grep but curl, and I do not know why (it still occurred when using SSL_STATUS=$( curl https://${DOMAIN} ) which is the basis).



I might just not be understanding how something works here because I'm thick but any assistance would be appreciated.



SSL_STATUS=$( curl https://${DOMAIN} 2>&1 | grep "SSL certificate problem" )


probably should have mentioned before but setting the function to just run the curl command drops it out of the script too so it's not setting the output to a variable that's causing trouble.










share|improve this question

























  • Do you have a set -e somewhere in your script? It will stop your script if any command returns a non-zero exit code (like curl does when there is a certificate problem).

    – Marcus
    Jan 18 at 20:22











  • Thank you so much. A colleague suggested using set -euox pipefail to debug and that was making the whole thing fall over. So glad I spent hours rewriting the functions cause of that :) Thanks again dude

    – Snakelegs
    Jan 18 at 20:29
















1















Trying to create a function to check if there are issues with the SSL on a webpage.In the specific scenario we've setup the expected output for curl https://domain includes:



curl: (60) SSL certificate problem: self signed certificate


...we are using grep, as per the line below to to set the SSL_STATUS variable to that line which we will then pump through an if statement. Problem is that it sets the variable and then drops out of the script for no apparent reason:



+ https_status
++ curl https://steelrain.eu
++ grep 'SSL certificate problem'
+ SSL_STATUS='curl: (60) SSL certificate problem: self signed certificate'


Having tested this is not the result of the grep but curl, and I do not know why (it still occurred when using SSL_STATUS=$( curl https://${DOMAIN} ) which is the basis).



I might just not be understanding how something works here because I'm thick but any assistance would be appreciated.



SSL_STATUS=$( curl https://${DOMAIN} 2>&1 | grep "SSL certificate problem" )


probably should have mentioned before but setting the function to just run the curl command drops it out of the script too so it's not setting the output to a variable that's causing trouble.










share|improve this question

























  • Do you have a set -e somewhere in your script? It will stop your script if any command returns a non-zero exit code (like curl does when there is a certificate problem).

    – Marcus
    Jan 18 at 20:22











  • Thank you so much. A colleague suggested using set -euox pipefail to debug and that was making the whole thing fall over. So glad I spent hours rewriting the functions cause of that :) Thanks again dude

    – Snakelegs
    Jan 18 at 20:29














1












1








1








Trying to create a function to check if there are issues with the SSL on a webpage.In the specific scenario we've setup the expected output for curl https://domain includes:



curl: (60) SSL certificate problem: self signed certificate


...we are using grep, as per the line below to to set the SSL_STATUS variable to that line which we will then pump through an if statement. Problem is that it sets the variable and then drops out of the script for no apparent reason:



+ https_status
++ curl https://steelrain.eu
++ grep 'SSL certificate problem'
+ SSL_STATUS='curl: (60) SSL certificate problem: self signed certificate'


Having tested this is not the result of the grep but curl, and I do not know why (it still occurred when using SSL_STATUS=$( curl https://${DOMAIN} ) which is the basis).



I might just not be understanding how something works here because I'm thick but any assistance would be appreciated.



SSL_STATUS=$( curl https://${DOMAIN} 2>&1 | grep "SSL certificate problem" )


probably should have mentioned before but setting the function to just run the curl command drops it out of the script too so it's not setting the output to a variable that's causing trouble.










share|improve this question
















Trying to create a function to check if there are issues with the SSL on a webpage.In the specific scenario we've setup the expected output for curl https://domain includes:



curl: (60) SSL certificate problem: self signed certificate


...we are using grep, as per the line below to to set the SSL_STATUS variable to that line which we will then pump through an if statement. Problem is that it sets the variable and then drops out of the script for no apparent reason:



+ https_status
++ curl https://steelrain.eu
++ grep 'SSL certificate problem'
+ SSL_STATUS='curl: (60) SSL certificate problem: self signed certificate'


Having tested this is not the result of the grep but curl, and I do not know why (it still occurred when using SSL_STATUS=$( curl https://${DOMAIN} ) which is the basis).



I might just not be understanding how something works here because I'm thick but any assistance would be appreciated.



SSL_STATUS=$( curl https://${DOMAIN} 2>&1 | grep "SSL certificate problem" )


probably should have mentioned before but setting the function to just run the curl command drops it out of the script too so it's not setting the output to a variable that's causing trouble.







bash function variables curl






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 18 at 20:22









Jean-François Fabre

102k954111




102k954111










asked Jan 18 at 20:16









SnakelegsSnakelegs

61




61













  • Do you have a set -e somewhere in your script? It will stop your script if any command returns a non-zero exit code (like curl does when there is a certificate problem).

    – Marcus
    Jan 18 at 20:22











  • Thank you so much. A colleague suggested using set -euox pipefail to debug and that was making the whole thing fall over. So glad I spent hours rewriting the functions cause of that :) Thanks again dude

    – Snakelegs
    Jan 18 at 20:29



















  • Do you have a set -e somewhere in your script? It will stop your script if any command returns a non-zero exit code (like curl does when there is a certificate problem).

    – Marcus
    Jan 18 at 20:22











  • Thank you so much. A colleague suggested using set -euox pipefail to debug and that was making the whole thing fall over. So glad I spent hours rewriting the functions cause of that :) Thanks again dude

    – Snakelegs
    Jan 18 at 20:29

















Do you have a set -e somewhere in your script? It will stop your script if any command returns a non-zero exit code (like curl does when there is a certificate problem).

– Marcus
Jan 18 at 20:22





Do you have a set -e somewhere in your script? It will stop your script if any command returns a non-zero exit code (like curl does when there is a certificate problem).

– Marcus
Jan 18 at 20:22













Thank you so much. A colleague suggested using set -euox pipefail to debug and that was making the whole thing fall over. So glad I spent hours rewriting the functions cause of that :) Thanks again dude

– Snakelegs
Jan 18 at 20:29





Thank you so much. A colleague suggested using set -euox pipefail to debug and that was making the whole thing fall over. So glad I spent hours rewriting the functions cause of that :) Thanks again dude

– Snakelegs
Jan 18 at 20:29












1 Answer
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set -e was in the main script for debugging:



set -euox pipefail


Commented out and now it's sorted. Cheers!






share|improve this answer























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    set -e was in the main script for debugging:



    set -euox pipefail


    Commented out and now it's sorted. Cheers!






    share|improve this answer




























      0














      set -e was in the main script for debugging:



      set -euox pipefail


      Commented out and now it's sorted. Cheers!






      share|improve this answer


























        0












        0








        0







        set -e was in the main script for debugging:



        set -euox pipefail


        Commented out and now it's sorted. Cheers!






        share|improve this answer













        set -e was in the main script for debugging:



        set -euox pipefail


        Commented out and now it's sorted. Cheers!







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 18 at 20:53









        SnakelegsSnakelegs

        61




        61






























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