Go to line of file where number of lines minus “n” [duplicate]

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  • Display only the penultimate (second last) row of a text [duplicate]

    5 answers



Say I want to go to the 80th last line of my file celery.log, but I don't know how many lines it has.



The equivalent of the tail command but go to the 80th line from the end instead of the default.



How would I do this?




command-line terminal




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marked as duplicate by Kusalananda, αғsнιη, Jeff Schaller, Satō Katsura, Kiwy May 9 at 7:42


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.










  • 2




    What do you mean by "go to"?
    – Kusalananda
    May 8 at 7:26










  • The equivilant of tail command but go to the 80th last line instead of the default.
    – Zorgan
    May 8 at 7:27






  • 4




    like tail -n80 celery.log ?
    – Charles
    May 8 at 7:29











  • @Charles yes that's perfect. thanks!
    – Zorgan
    May 8 at 8:26














up vote
0
down vote

favorite













This question already has an answer here:



  • Display only the penultimate (second last) row of a text [duplicate]

    5 answers



Say I want to go to the 80th last line of my file celery.log, but I don't know how many lines it has.



The equivalent of the tail command but go to the 80th line from the end instead of the default.



How would I do this?




command-line terminal




share|improve this question













marked as duplicate by Kusalananda, αғsнιη, Jeff Schaller, Satō Katsura, Kiwy May 9 at 7:42


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.










  • 2




    What do you mean by "go to"?
    – Kusalananda
    May 8 at 7:26










  • The equivilant of tail command but go to the 80th last line instead of the default.
    – Zorgan
    May 8 at 7:27






  • 4




    like tail -n80 celery.log ?
    – Charles
    May 8 at 7:29











  • @Charles yes that's perfect. thanks!
    – Zorgan
    May 8 at 8:26












up vote
0
down vote

favorite









up vote
0
down vote

favorite












This question already has an answer here:



  • Display only the penultimate (second last) row of a text [duplicate]

    5 answers



Say I want to go to the 80th last line of my file celery.log, but I don't know how many lines it has.



The equivalent of the tail command but go to the 80th line from the end instead of the default.



How would I do this?




command-line terminal




share|improve this question














This question already has an answer here:



  • Display only the penultimate (second last) row of a text [duplicate]

    5 answers



Say I want to go to the 80th last line of my file celery.log, but I don't know how many lines it has.



The equivalent of the tail command but go to the 80th line from the end instead of the default.



How would I do this?





This question already has an answer here:



  • Display only the penultimate (second last) row of a text [duplicate]

    5 answers





command-line terminal





share|improve this question












share|improve this question




share|improve this question








edited May 8 at 7:43









roaima

39.4k544105




39.4k544105









asked May 8 at 7:20









Zorgan

1104




1104




marked as duplicate by Kusalananda, αғsнιη, Jeff Schaller, Satō Katsura, Kiwy May 9 at 7:42


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.






marked as duplicate by Kusalananda, αғsнιη, Jeff Schaller, Satō Katsura, Kiwy May 9 at 7:42


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.









  • 2




    What do you mean by "go to"?
    – Kusalananda
    May 8 at 7:26










  • The equivilant of tail command but go to the 80th last line instead of the default.
    – Zorgan
    May 8 at 7:27






  • 4




    like tail -n80 celery.log ?
    – Charles
    May 8 at 7:29











  • @Charles yes that's perfect. thanks!
    – Zorgan
    May 8 at 8:26












  • 2




    What do you mean by "go to"?
    – Kusalananda
    May 8 at 7:26










  • The equivilant of tail command but go to the 80th last line instead of the default.
    – Zorgan
    May 8 at 7:27






  • 4




    like tail -n80 celery.log ?
    – Charles
    May 8 at 7:29











  • @Charles yes that's perfect. thanks!
    – Zorgan
    May 8 at 8:26







2




2




What do you mean by "go to"?
– Kusalananda
May 8 at 7:26




What do you mean by "go to"?
– Kusalananda
May 8 at 7:26












The equivilant of tail command but go to the 80th last line instead of the default.
– Zorgan
May 8 at 7:27




The equivilant of tail command but go to the 80th last line instead of the default.
– Zorgan
May 8 at 7:27




4




4




like tail -n80 celery.log ?
– Charles
May 8 at 7:29





like tail -n80 celery.log ?
– Charles
May 8 at 7:29













@Charles yes that's perfect. thanks!
– Zorgan
May 8 at 8:26




@Charles yes that's perfect. thanks!
– Zorgan
May 8 at 8:26










3 Answers
3






active

oldest

votes

















up vote
3
down vote













echo '$-79p' | ed -s celery.log


This would run the ed script $-79p on the file called celery.log, which would display the line that is 79 lines up from the last line of the file.



In a shell that understands here-strings:



ed -s celery.log <<<'$-79p'


If the file has less than 80 lines, ed will return an error (the character ? on its standard error stream) and produce no output on the standard output stream.






share|improve this answer






























    up vote
    2
    down vote













    tail -n 80 celery.log | head -n 1


    This will show the first of the last 80 lines (if the file has fewer than 80 lines, it will show the first line of the file).






    share|improve this answer






























      up vote
      1
      down vote













      Yo can do this: 



      tac celery.log | sed -n '80p'





      share|improve this answer




























        3 Answers
        3






        active

        oldest

        votes








        3 Answers
        3






        active

        oldest

        votes









        active

        oldest

        votes






        active

        oldest

        votes








        up vote
        3
        down vote













        echo '$-79p' | ed -s celery.log


        This would run the ed script $-79p on the file called celery.log, which would display the line that is 79 lines up from the last line of the file.



        In a shell that understands here-strings:



        ed -s celery.log <<<'$-79p'


        If the file has less than 80 lines, ed will return an error (the character ? on its standard error stream) and produce no output on the standard output stream.






        share|improve this answer



























          up vote
          3
          down vote













          echo '$-79p' | ed -s celery.log


          This would run the ed script $-79p on the file called celery.log, which would display the line that is 79 lines up from the last line of the file.



          In a shell that understands here-strings:



          ed -s celery.log <<<'$-79p'


          If the file has less than 80 lines, ed will return an error (the character ? on its standard error stream) and produce no output on the standard output stream.






          share|improve this answer

























            up vote
            3
            down vote










            up vote
            3
            down vote









            echo '$-79p' | ed -s celery.log


            This would run the ed script $-79p on the file called celery.log, which would display the line that is 79 lines up from the last line of the file.



            In a shell that understands here-strings:



            ed -s celery.log <<<'$-79p'


            If the file has less than 80 lines, ed will return an error (the character ? on its standard error stream) and produce no output on the standard output stream.






            share|improve this answer















            echo '$-79p' | ed -s celery.log


            This would run the ed script $-79p on the file called celery.log, which would display the line that is 79 lines up from the last line of the file.



            In a shell that understands here-strings:



            ed -s celery.log <<<'$-79p'


            If the file has less than 80 lines, ed will return an error (the character ? on its standard error stream) and produce no output on the standard output stream.







            share|improve this answer















            share|improve this answer



            share|improve this answer








            edited May 8 at 8:40


























            answered May 8 at 7:42









            Kusalananda

            102k13199315




            102k13199315






















                up vote
                2
                down vote













                tail -n 80 celery.log | head -n 1


                This will show the first of the last 80 lines (if the file has fewer than 80 lines, it will show the first line of the file).






                share|improve this answer



























                  up vote
                  2
                  down vote













                  tail -n 80 celery.log | head -n 1


                  This will show the first of the last 80 lines (if the file has fewer than 80 lines, it will show the first line of the file).






                  share|improve this answer

























                    up vote
                    2
                    down vote










                    up vote
                    2
                    down vote









                    tail -n 80 celery.log | head -n 1


                    This will show the first of the last 80 lines (if the file has fewer than 80 lines, it will show the first line of the file).






                    share|improve this answer















                    tail -n 80 celery.log | head -n 1


                    This will show the first of the last 80 lines (if the file has fewer than 80 lines, it will show the first line of the file).







                    share|improve this answer















                    share|improve this answer



                    share|improve this answer








                    edited May 8 at 8:20









                    Stéphane Chazelas

                    279k53514845




                    279k53514845











                    answered May 8 at 7:35









                    Kyrie001

                    434




                    434




















                        up vote
                        1
                        down vote













                        Yo can do this: 



                        tac celery.log | sed -n '80p'





                        share|improve this answer

























                          up vote
                          1
                          down vote













                          Yo can do this: 



                          tac celery.log | sed -n '80p'





                          share|improve this answer























                            up vote
                            1
                            down vote










                            up vote
                            1
                            down vote









                            Yo can do this: 



                            tac celery.log | sed -n '80p'





                            share|improve this answer













                            Yo can do this: 



                            tac celery.log | sed -n '80p'






                            share|improve this answer













                            share|improve this answer



                            share|improve this answer











                            answered May 8 at 7:38









                            matsib.dev

                            14613




                            14613












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