how to echo find command












0














For a raspberry backup bash-script I want to log which and how many older backups are deleted.



I use 



find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -delete


to clean.



How do I count and display and log to a file which files are deleted?






bash find







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    0














    For a raspberry backup bash-script I want to log which and how many older backups are deleted.



    I use 



    find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -delete


    to clean.



    How do I count and display and log to a file which files are deleted?






    bash find







    share|improve this question









    New contributor




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























      0












      0








      0







      For a raspberry backup bash-script I want to log which and how many older backups are deleted.



      I use 



      find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -delete


      to clean.



      How do I count and display and log to a file which files are deleted?






      bash find







      share|improve this question









      New contributor




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











      For a raspberry backup bash-script I want to log which and how many older backups are deleted.



      I use 



      find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -delete


      to clean.



      How do I count and display and log to a file which files are deleted?






      bash find




      bash find






      share|improve this question









      New contributor




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











      share|improve this question









      New contributor




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









      share|improve this question




      share|improve this question








      edited 1 hour ago









      Thomas

      3,70061225




      3,70061225






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      asked 1 hour ago









      Thuurke

      1




      1




      New contributor




      Thuurke is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      New contributor





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






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          2 Answers
          2






          active

          oldest

          votes


















          2














          find has an fprint action that can write the results of the find command to a file. You can then extend your command as:



          find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -fprint /path/to/log.txt -delete


          You can then retrieve the file count from the log file, by using wc: 



          cat /path/to/log.txt | wc -l


          If special characters can appear in the results of find, you can use the the fprint0 option as an alternative. This will write the results to the specified file as null-delimited strings.



          To count the items in the resulting file, you can look the options discussed under this question: Count null delimited items in file.






          share|improve this answer



















          • 1




            Not all implementations of find support fprint, GNU find does but busybox for example does not. It's also not mandated by POSIX: pubs.opengroup.org/onlinepubs/9699919799/utilities/find.html. And you don't need cat to count number of lines with wc: wc -l <FILE> is enough.
            – Arkadiusz Drabczyk
            1 hour ago










          • @ArkadiuszDrabczyk Thanks for the information on POSIX find. Regarding the usage of cat, I used it so that the output is only a number. wc shows the filename beside the count with the wc -l file syntax.
            – Haxiel
            54 mins ago



















          1














          You can use the -print option of find, to output the files that are deleted, then pipe things to tee to write results into a logfile. And finally count the lines of the deleted files and append it in the logfile. 



          find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -delete -print | tee ${LOGFILE} | wc -l | xargs echo "Files deleted:" >> ${LOGFILE}


          If you want to append new results to the same ${LOGFILE} you would have to use tee -a.






          share|improve this answer





















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            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            2














            find has an fprint action that can write the results of the find command to a file. You can then extend your command as:



            find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -fprint /path/to/log.txt -delete


            You can then retrieve the file count from the log file, by using wc: 



            cat /path/to/log.txt | wc -l


            If special characters can appear in the results of find, you can use the the fprint0 option as an alternative. This will write the results to the specified file as null-delimited strings.



            To count the items in the resulting file, you can look the options discussed under this question: Count null delimited items in file.






            share|improve this answer



















            • 1




              Not all implementations of find support fprint, GNU find does but busybox for example does not. It's also not mandated by POSIX: pubs.opengroup.org/onlinepubs/9699919799/utilities/find.html. And you don't need cat to count number of lines with wc: wc -l <FILE> is enough.
              – Arkadiusz Drabczyk
              1 hour ago










            • @ArkadiuszDrabczyk Thanks for the information on POSIX find. Regarding the usage of cat, I used it so that the output is only a number. wc shows the filename beside the count with the wc -l file syntax.
              – Haxiel
              54 mins ago
















            2














            find has an fprint action that can write the results of the find command to a file. You can then extend your command as:



            find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -fprint /path/to/log.txt -delete


            You can then retrieve the file count from the log file, by using wc: 



            cat /path/to/log.txt | wc -l


            If special characters can appear in the results of find, you can use the the fprint0 option as an alternative. This will write the results to the specified file as null-delimited strings.



            To count the items in the resulting file, you can look the options discussed under this question: Count null delimited items in file.






            share|improve this answer



















            • 1




              Not all implementations of find support fprint, GNU find does but busybox for example does not. It's also not mandated by POSIX: pubs.opengroup.org/onlinepubs/9699919799/utilities/find.html. And you don't need cat to count number of lines with wc: wc -l <FILE> is enough.
              – Arkadiusz Drabczyk
              1 hour ago










            • @ArkadiuszDrabczyk Thanks for the information on POSIX find. Regarding the usage of cat, I used it so that the output is only a number. wc shows the filename beside the count with the wc -l file syntax.
              – Haxiel
              54 mins ago














            2












            2








            2






            find has an fprint action that can write the results of the find command to a file. You can then extend your command as:



            find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -fprint /path/to/log.txt -delete


            You can then retrieve the file count from the log file, by using wc: 



            cat /path/to/log.txt | wc -l


            If special characters can appear in the results of find, you can use the the fprint0 option as an alternative. This will write the results to the specified file as null-delimited strings.



            To count the items in the resulting file, you can look the options discussed under this question: Count null delimited items in file.






            share|improve this answer














            find has an fprint action that can write the results of the find command to a file. You can then extend your command as:



            find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -fprint /path/to/log.txt -delete


            You can then retrieve the file count from the log file, by using wc: 



            cat /path/to/log.txt | wc -l


            If special characters can appear in the results of find, you can use the the fprint0 option as an alternative. This will write the results to the specified file as null-delimited strings.



            To count the items in the resulting file, you can look the options discussed under this question: Count null delimited items in file.







            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited 58 mins ago

























            answered 1 hour ago









            Haxiel

            1,099310




            1,099310








            • 1




              Not all implementations of find support fprint, GNU find does but busybox for example does not. It's also not mandated by POSIX: pubs.opengroup.org/onlinepubs/9699919799/utilities/find.html. And you don't need cat to count number of lines with wc: wc -l <FILE> is enough.
              – Arkadiusz Drabczyk
              1 hour ago










            • @ArkadiuszDrabczyk Thanks for the information on POSIX find. Regarding the usage of cat, I used it so that the output is only a number. wc shows the filename beside the count with the wc -l file syntax.
              – Haxiel
              54 mins ago














            • 1




              Not all implementations of find support fprint, GNU find does but busybox for example does not. It's also not mandated by POSIX: pubs.opengroup.org/onlinepubs/9699919799/utilities/find.html. And you don't need cat to count number of lines with wc: wc -l <FILE> is enough.
              – Arkadiusz Drabczyk
              1 hour ago










            • @ArkadiuszDrabczyk Thanks for the information on POSIX find. Regarding the usage of cat, I used it so that the output is only a number. wc shows the filename beside the count with the wc -l file syntax.
              – Haxiel
              54 mins ago








            1




            1




            Not all implementations of find support fprint, GNU find does but busybox for example does not. It's also not mandated by POSIX: pubs.opengroup.org/onlinepubs/9699919799/utilities/find.html. And you don't need cat to count number of lines with wc: wc -l <FILE> is enough.
            – Arkadiusz Drabczyk
            1 hour ago




            Not all implementations of find support fprint, GNU find does but busybox for example does not. It's also not mandated by POSIX: pubs.opengroup.org/onlinepubs/9699919799/utilities/find.html. And you don't need cat to count number of lines with wc: wc -l <FILE> is enough.
            – Arkadiusz Drabczyk
            1 hour ago












            @ArkadiuszDrabczyk Thanks for the information on POSIX find. Regarding the usage of cat, I used it so that the output is only a number. wc shows the filename beside the count with the wc -l file syntax.
            – Haxiel
            54 mins ago




            @ArkadiuszDrabczyk Thanks for the information on POSIX find. Regarding the usage of cat, I used it so that the output is only a number. wc shows the filename beside the count with the wc -l file syntax.
            – Haxiel
            54 mins ago













            1














            You can use the -print option of find, to output the files that are deleted, then pipe things to tee to write results into a logfile. And finally count the lines of the deleted files and append it in the logfile. 



            find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -delete -print | tee ${LOGFILE} | wc -l | xargs echo "Files deleted:" >> ${LOGFILE}


            If you want to append new results to the same ${LOGFILE} you would have to use tee -a.






            share|improve this answer


























              1














              You can use the -print option of find, to output the files that are deleted, then pipe things to tee to write results into a logfile. And finally count the lines of the deleted files and append it in the logfile. 



              find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -delete -print | tee ${LOGFILE} | wc -l | xargs echo "Files deleted:" >> ${LOGFILE}


              If you want to append new results to the same ${LOGFILE} you would have to use tee -a.






              share|improve this answer
























                1












                1








                1






                You can use the -print option of find, to output the files that are deleted, then pipe things to tee to write results into a logfile. And finally count the lines of the deleted files and append it in the logfile. 



                find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -delete -print | tee ${LOGFILE} | wc -l | xargs echo "Files deleted:" >> ${LOGFILE}


                If you want to append new results to the same ${LOGFILE} you would have to use tee -a.






                share|improve this answer












                You can use the -print option of find, to output the files that are deleted, then pipe things to tee to write results into a logfile. And finally count the lines of the deleted files and append it in the logfile. 



                find $backup_path/$HOSTNAME.*.img -mtime +$retention_days -type f -delete -print | tee ${LOGFILE} | wc -l | xargs echo "Files deleted:" >> ${LOGFILE}


                If you want to append new results to the same ${LOGFILE} you would have to use tee -a.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 44 mins ago









                Thomas

                3,70061225




                3,70061225






















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