write sed commands to multiple lines

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I am taking efforts to learn sed and encounter such a situation



$ echo "abcd" | sed -n "/b/p"
abcd


it works properly,



$ echo "abcd" | sed -n "
→ /b/p"
abcd


good again, but



$ echo "Abcd" | sed -n "/b
/p"
sed: -e expression #1, char 2: unterminated address regex


What's the problem with the error report?






bash sed






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    up vote
    0
    down vote

    favorite












    I am taking efforts to learn sed and encounter such a situation



    $ echo "abcd" | sed -n "/b/p"
    abcd


    it works properly,



    $ echo "abcd" | sed -n "
    → /b/p"
    abcd


    good again, but



    $ echo "Abcd" | sed -n "/b
    /p"
    sed: -e expression #1, char 2: unterminated address regex


    What's the problem with the error report?






    bash sed






    share







    New contributor




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





















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I am taking efforts to learn sed and encounter such a situation



      $ echo "abcd" | sed -n "/b/p"
      abcd


      it works properly,



      $ echo "abcd" | sed -n "
      → /b/p"
      abcd


      good again, but



      $ echo "Abcd" | sed -n "/b
      /p"
      sed: -e expression #1, char 2: unterminated address regex


      What's the problem with the error report?






      bash sed






      share







      New contributor




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











      I am taking efforts to learn sed and encounter such a situation



      $ echo "abcd" | sed -n "/b/p"
      abcd


      it works properly,



      $ echo "abcd" | sed -n "
      → /b/p"
      abcd


      good again, but



      $ echo "Abcd" | sed -n "/b
      /p"
      sed: -e expression #1, char 2: unterminated address regex


      What's the problem with the error report?






      bash sed




      bash sed





      share







      New contributor




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










      share







      New contributor




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








      share



      share






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






      Sawajiri 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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