Show only number and characters not Specific symbols [closed]











up vote
2
down vote

favorite
2












I want to show only the numbers and characters, not other specific symbols. I tried this:



grep [0-9,A-Z] ika


but working it is not working now, it shows specific symbols also.






linux grep







share|improve this question















closed as unclear what you're asking by Jeff Schaller, RalfFriedl, Romeo Ninov, G-Man, mosvy Nov 17 at 16:50


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.















  • the command you show will display lines with any of those characters in it; what's your desired output? Also, be sure to quote that pattern to protect it from the shell, in case you had a file named , or C in your current directory, you wouldn't get what you expect.
    – Jeff Schaller
    Nov 16 at 18:46










  • Do you mean numbers and letters? "Symbols" are characters.
    – jpmc26
    Nov 16 at 22:56

















up vote
2
down vote

favorite
2












I want to show only the numbers and characters, not other specific symbols. I tried this:



grep [0-9,A-Z] ika


but working it is not working now, it shows specific symbols also.






linux grep







share|improve this question















closed as unclear what you're asking by Jeff Schaller, RalfFriedl, Romeo Ninov, G-Man, mosvy Nov 17 at 16:50


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.















  • the command you show will display lines with any of those characters in it; what's your desired output? Also, be sure to quote that pattern to protect it from the shell, in case you had a file named , or C in your current directory, you wouldn't get what you expect.
    – Jeff Schaller
    Nov 16 at 18:46










  • Do you mean numbers and letters? "Symbols" are characters.
    – jpmc26
    Nov 16 at 22:56















up vote
2
down vote

favorite
2









up vote
2
down vote

favorite
2






2





I want to show only the numbers and characters, not other specific symbols. I tried this:



grep [0-9,A-Z] ika


but working it is not working now, it shows specific symbols also.






linux grep







share|improve this question















I want to show only the numbers and characters, not other specific symbols. I tried this:



grep [0-9,A-Z] ika


but working it is not working now, it shows specific symbols also.






linux grep




linux grep






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 16 at 18:55









Isaac

9,69211445




9,69211445










asked Nov 16 at 18:30









Irakli

183




183




closed as unclear what you're asking by Jeff Schaller, RalfFriedl, Romeo Ninov, G-Man, mosvy Nov 17 at 16:50


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.






closed as unclear what you're asking by Jeff Schaller, RalfFriedl, Romeo Ninov, G-Man, mosvy Nov 17 at 16:50


Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.














  • the command you show will display lines with any of those characters in it; what's your desired output? Also, be sure to quote that pattern to protect it from the shell, in case you had a file named , or C in your current directory, you wouldn't get what you expect.
    – Jeff Schaller
    Nov 16 at 18:46










  • Do you mean numbers and letters? "Symbols" are characters.
    – jpmc26
    Nov 16 at 22:56




















  • the command you show will display lines with any of those characters in it; what's your desired output? Also, be sure to quote that pattern to protect it from the shell, in case you had a file named , or C in your current directory, you wouldn't get what you expect.
    – Jeff Schaller
    Nov 16 at 18:46










  • Do you mean numbers and letters? "Symbols" are characters.
    – jpmc26
    Nov 16 at 22:56


















the command you show will display lines with any of those characters in it; what's your desired output? Also, be sure to quote that pattern to protect it from the shell, in case you had a file named , or C in your current directory, you wouldn't get what you expect.
– Jeff Schaller
Nov 16 at 18:46




the command you show will display lines with any of those characters in it; what's your desired output? Also, be sure to quote that pattern to protect it from the shell, in case you had a file named , or C in your current directory, you wouldn't get what you expect.
– Jeff Schaller
Nov 16 at 18:46












Do you mean numbers and letters? "Symbols" are characters.
– jpmc26
Nov 16 at 22:56






Do you mean numbers and letters? "Symbols" are characters.
– jpmc26
Nov 16 at 22:56












2 Answers
2






active

oldest

votes

















up vote
2
down vote



accepted










The following examples show how to get what you want:



These commands show the whole line containing the search string.



$ <<< 'asdf$@12' grep as

asdf$@12

$ <<< 'asdf$@12' grep '[0-9A-Z]'

asdf$@12


You can high-light the search string in the line



$ <<< 'asdf$@12' grep --color '[0-9A-Z]'

asdf$@12


You can print only the search string (in this case one-character digits and upper case letters)



$ <<< 'asdf$@12' grep --color -o '[0-9A-Z]'

1

2


If you want all letters, you should search for lower case letters too



$ <<< 'asdf$@12' grep --color -o '[0-9A-Za-z]'

a

s

d

f

1

2





share|improve this answer























  • Thanks for single quotes, @JeffSchaller :-)
    – sudodus
    Nov 16 at 19:03










  • Do you want commas displayed in the result? If no, remove from the pattern resp. regex.
    – RudiC
    Nov 16 at 19:05










  • touch C for a quick reason why :)
    – Jeff Schaller
    Nov 16 at 19:06










  • Thanks for suggesting to remove the commas, @RudiC :-)
    – sudodus
    Nov 16 at 19:12


















up vote
4
down vote













Try also



<<< 'asdf$@12' tr -cd 'a-zA-Z0-9'

asdf12


or use a character class, like



tr -cd '[:alnum:]'





share|improve this answer






























    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    2
    down vote



    accepted










    The following examples show how to get what you want:



    These commands show the whole line containing the search string.



    $ <<< 'asdf$@12' grep as
    
asdf$@12
    
$ <<< 'asdf$@12' grep '[0-9A-Z]'
    
asdf$@12


    You can high-light the search string in the line



    $ <<< 'asdf$@12' grep --color '[0-9A-Z]'
    
asdf$@12


    You can print only the search string (in this case one-character digits and upper case letters)



    $ <<< 'asdf$@12' grep --color -o '[0-9A-Z]'
    
1
    
2


    If you want all letters, you should search for lower case letters too



    $ <<< 'asdf$@12' grep --color -o '[0-9A-Za-z]'
    
a
    
s
    
d
    
f
    
1
    
2





    share|improve this answer























    • Thanks for single quotes, @JeffSchaller :-)
      – sudodus
      Nov 16 at 19:03










    • Do you want commas displayed in the result? If no, remove from the pattern resp. regex.
      – RudiC
      Nov 16 at 19:05










    • touch C for a quick reason why :)
      – Jeff Schaller
      Nov 16 at 19:06










    • Thanks for suggesting to remove the commas, @RudiC :-)
      – sudodus
      Nov 16 at 19:12















    up vote
    2
    down vote



    accepted










    The following examples show how to get what you want:



    These commands show the whole line containing the search string.



    $ <<< 'asdf$@12' grep as
    
asdf$@12
    
$ <<< 'asdf$@12' grep '[0-9A-Z]'
    
asdf$@12


    You can high-light the search string in the line



    $ <<< 'asdf$@12' grep --color '[0-9A-Z]'
    
asdf$@12


    You can print only the search string (in this case one-character digits and upper case letters)



    $ <<< 'asdf$@12' grep --color -o '[0-9A-Z]'
    
1
    
2


    If you want all letters, you should search for lower case letters too



    $ <<< 'asdf$@12' grep --color -o '[0-9A-Za-z]'
    
a
    
s
    
d
    
f
    
1
    
2





    share|improve this answer























    • Thanks for single quotes, @JeffSchaller :-)
      – sudodus
      Nov 16 at 19:03










    • Do you want commas displayed in the result? If no, remove from the pattern resp. regex.
      – RudiC
      Nov 16 at 19:05










    • touch C for a quick reason why :)
      – Jeff Schaller
      Nov 16 at 19:06










    • Thanks for suggesting to remove the commas, @RudiC :-)
      – sudodus
      Nov 16 at 19:12













    up vote
    2
    down vote



    accepted







    up vote
    2
    down vote



    accepted






    The following examples show how to get what you want:



    These commands show the whole line containing the search string.



    $ <<< 'asdf$@12' grep as
    
asdf$@12
    
$ <<< 'asdf$@12' grep '[0-9A-Z]'
    
asdf$@12


    You can high-light the search string in the line



    $ <<< 'asdf$@12' grep --color '[0-9A-Z]'
    
asdf$@12


    You can print only the search string (in this case one-character digits and upper case letters)



    $ <<< 'asdf$@12' grep --color -o '[0-9A-Z]'
    
1
    
2


    If you want all letters, you should search for lower case letters too



    $ <<< 'asdf$@12' grep --color -o '[0-9A-Za-z]'
    
a
    
s
    
d
    
f
    
1
    
2





    share|improve this answer














    The following examples show how to get what you want:



    These commands show the whole line containing the search string.



    $ <<< 'asdf$@12' grep as
    
asdf$@12
    
$ <<< 'asdf$@12' grep '[0-9A-Z]'
    
asdf$@12


    You can high-light the search string in the line



    $ <<< 'asdf$@12' grep --color '[0-9A-Z]'
    
asdf$@12


    You can print only the search string (in this case one-character digits and upper case letters)



    $ <<< 'asdf$@12' grep --color -o '[0-9A-Z]'
    
1
    
2


    If you want all letters, you should search for lower case letters too



    $ <<< 'asdf$@12' grep --color -o '[0-9A-Za-z]'
    
a
    
s
    
d
    
f
    
1
    
2






    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited Nov 16 at 19:11

























    answered Nov 16 at 18:57









    sudodus

    54615




    54615












    • Thanks for single quotes, @JeffSchaller :-)
      – sudodus
      Nov 16 at 19:03










    • Do you want commas displayed in the result? If no, remove from the pattern resp. regex.
      – RudiC
      Nov 16 at 19:05










    • touch C for a quick reason why :)
      – Jeff Schaller
      Nov 16 at 19:06










    • Thanks for suggesting to remove the commas, @RudiC :-)
      – sudodus
      Nov 16 at 19:12


















    • Thanks for single quotes, @JeffSchaller :-)
      – sudodus
      Nov 16 at 19:03










    • Do you want commas displayed in the result? If no, remove from the pattern resp. regex.
      – RudiC
      Nov 16 at 19:05










    • touch C for a quick reason why :)
      – Jeff Schaller
      Nov 16 at 19:06










    • Thanks for suggesting to remove the commas, @RudiC :-)
      – sudodus
      Nov 16 at 19:12
















    Thanks for single quotes, @JeffSchaller :-)
    – sudodus
    Nov 16 at 19:03




    Thanks for single quotes, @JeffSchaller :-)
    – sudodus
    Nov 16 at 19:03












    Do you want commas displayed in the result? If no, remove from the pattern resp. regex.
    – RudiC
    Nov 16 at 19:05




    Do you want commas displayed in the result? If no, remove from the pattern resp. regex.
    – RudiC
    Nov 16 at 19:05












    touch C for a quick reason why :)
    – Jeff Schaller
    Nov 16 at 19:06




    touch C for a quick reason why :)
    – Jeff Schaller
    Nov 16 at 19:06












    Thanks for suggesting to remove the commas, @RudiC :-)
    – sudodus
    Nov 16 at 19:12




    Thanks for suggesting to remove the commas, @RudiC :-)
    – sudodus
    Nov 16 at 19:12












    up vote
    4
    down vote













    Try also



    <<< 'asdf$@12' tr -cd 'a-zA-Z0-9'
    
asdf12


    or use a character class, like



    tr -cd '[:alnum:]'





    share|improve this answer



























      up vote
      4
      down vote













      Try also



      <<< 'asdf$@12' tr -cd 'a-zA-Z0-9'
      
asdf12


      or use a character class, like



      tr -cd '[:alnum:]'





      share|improve this answer

























        up vote
        4
        down vote










        up vote
        4
        down vote









        Try also



        <<< 'asdf$@12' tr -cd 'a-zA-Z0-9'
        
asdf12


        or use a character class, like



        tr -cd '[:alnum:]'





        share|improve this answer














        Try also



        <<< 'asdf$@12' tr -cd 'a-zA-Z0-9'
        
asdf12


        or use a character class, like



        tr -cd '[:alnum:]'






        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Nov 16 at 19:24

























        answered Nov 16 at 19:03









        RudiC

        3,1311211




        3,1311211















            -

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