How do extract the string before the colon?2019 Community Moderator ElectionHow to validate an email address in JavaScript?How to validate an email address using a regular expression?Regular expression to match a line that doesn't contain a word?How do you access the matched groups in a JavaScript regular expression?How do you use a variable in a regular expression?How do I make the first letter of a string uppercase in JavaScript?How to replace all occurrences of a string in JavaScriptWhat regex will match every character except comma ',' or semi-colon ';'?Python: Extract numbers from a stringHow to extract a substring using regex

What is better: yes / no radio, or simple checkbox?

What is Tony Stark injecting into himself in Iron Man 3?

Should I take out a loan for a friend to invest on my behalf?

PTIJ: Why does only a Shor Tam ask at the Seder, and not a Shor Mu'ad?

Windows Server Datacenter Edition - Unlimited Virtual Machines

Is divide-by-zero a security vulnerability?

Is it safe to abruptly remove Arduino power?

Why aren't there more Gauls like Obelix?

Why do we say ‘pairwise disjoint’, rather than ‘disjoint’?

I can't die. Who am I?

What do you call someone who likes to pick fights?

Finitely many repeated replacements

What materials can be used to make a humanoid skin warm?

How many characters using PHB rules does it take to be able to have access to any PHB spell at the start of an adventuring day?

Proving a statement about real numbers

How do electrons receive energy when a body is heated?

Getting the || sign while using Kurier

What is the generally accepted pronunciation of “topoi”?

What ability score modifier does a javelin's damage use?

Are small insurances worth it?

In the late 1940’s to early 1950’s what technology was available that could melt a LOT of ice?

Doesn't allowing a user mode program to access kernel space memory and execute the IN and OUT instructions defeat the purpose of having CPU modes?

For which categories of spectra is there an explicit description of the fibrant objects via lifting properties?

Would an aboleth's Phantasmal Force lair action be affected by Counterspell, Dispel Magic, and/or Slow?



How do extract the string before the colon?



2019 Community Moderator ElectionHow to validate an email address in JavaScript?How to validate an email address using a regular expression?Regular expression to match a line that doesn't contain a word?How do you access the matched groups in a JavaScript regular expression?How do you use a variable in a regular expression?How do I make the first letter of a string uppercase in JavaScript?How to replace all occurrences of a string in JavaScriptWhat regex will match every character except comma ',' or semi-colon ';'?Python: Extract numbers from a stringHow to extract a substring using regex










-1















How do extract the string before the colon. I don't want the string after the colon.



Sample input:



asfmqwdbd/ilcp:dftqclk_repasfmq


Desired result:



asfmqwdbd/ilcp:dftqclk_rep


My code:



if (m/^(S+))
$inst_name = $1









share|improve this question









New contributor




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




















  • m/^([^s:]+)/ - if you meant before the first colon

    – Wiktor Stribiżew
    Mar 7 at 6:05












  • Can ypu please edit your question? Your example does not contain a semicolon ;. Did you mean colon :?

    – Stefan Becker
    Mar 7 at 6:06











  • Shouldn't the desired result be asfmqwdbd/ilcp?

    – ikegami
    Mar 7 at 7:04















-1















How do extract the string before the colon. I don't want the string after the colon.



Sample input:



asfmqwdbd/ilcp:dftqclk_repasfmq


Desired result:



asfmqwdbd/ilcp:dftqclk_rep


My code:



if (m/^(S+))
$inst_name = $1









share|improve this question









New contributor




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




















  • m/^([^s:]+)/ - if you meant before the first colon

    – Wiktor Stribiżew
    Mar 7 at 6:05












  • Can ypu please edit your question? Your example does not contain a semicolon ;. Did you mean colon :?

    – Stefan Becker
    Mar 7 at 6:06











  • Shouldn't the desired result be asfmqwdbd/ilcp?

    – ikegami
    Mar 7 at 7:04













-1












-1








-1








How do extract the string before the colon. I don't want the string after the colon.



Sample input:



asfmqwdbd/ilcp:dftqclk_repasfmq


Desired result:



asfmqwdbd/ilcp:dftqclk_rep


My code:



if (m/^(S+))
$inst_name = $1









share|improve this question









New contributor




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












How do extract the string before the colon. I don't want the string after the colon.



Sample input:



asfmqwdbd/ilcp:dftqclk_repasfmq


Desired result:



asfmqwdbd/ilcp:dftqclk_rep


My code:



if (m/^(S+))
$inst_name = $1






regex perl






share|improve this question









New contributor




Thibhika Ravichandran 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




Thibhika Ravichandran 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 Mar 7 at 7:04









ikegami

266k11178401




266k11178401






New contributor




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









asked Mar 7 at 5:07









Thibhika RavichandranThibhika Ravichandran

1




1




New contributor




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





New contributor





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






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












  • m/^([^s:]+)/ - if you meant before the first colon

    – Wiktor Stribiżew
    Mar 7 at 6:05












  • Can ypu please edit your question? Your example does not contain a semicolon ;. Did you mean colon :?

    – Stefan Becker
    Mar 7 at 6:06











  • Shouldn't the desired result be asfmqwdbd/ilcp?

    – ikegami
    Mar 7 at 7:04

















  • m/^([^s:]+)/ - if you meant before the first colon

    – Wiktor Stribiżew
    Mar 7 at 6:05












  • Can ypu please edit your question? Your example does not contain a semicolon ;. Did you mean colon :?

    – Stefan Becker
    Mar 7 at 6:06











  • Shouldn't the desired result be asfmqwdbd/ilcp?

    – ikegami
    Mar 7 at 7:04
















m/^([^s:]+)/ - if you meant before the first colon

– Wiktor Stribiżew
Mar 7 at 6:05






m/^([^s:]+)/ - if you meant before the first colon

– Wiktor Stribiżew
Mar 7 at 6:05














Can ypu please edit your question? Your example does not contain a semicolon ;. Did you mean colon :?

– Stefan Becker
Mar 7 at 6:06





Can ypu please edit your question? Your example does not contain a semicolon ;. Did you mean colon :?

– Stefan Becker
Mar 7 at 6:06













Shouldn't the desired result be asfmqwdbd/ilcp?

– ikegami
Mar 7 at 7:04





Shouldn't the desired result be asfmqwdbd/ilcp?

– ikegami
Mar 7 at 7:04












3 Answers
3






active

oldest

votes


















1














Assuming that semicolon (;) was a typo in the question and you actually meant colon (:) this would be the correct regex:



  • anchor at beginning of line (^)

  • capture one-or-more non-colon characters (([^:]+))

  • match must end on a colon (:)

#!/usr/bin/perl
use warnings;
use strict;

while (<DATA>)
print "$1n" if /^([^:]+):/;


exit 0;

__DATA__
asfmqwdbd/ilcp
asfmqwdbd/ilcp:dftqclk_repasfmq
asfmqwdbd/ilcp;dftqclk_repasfmq


Test run:



$ perl dummy.pl
asfmqwdbd/ilcp





share|improve this answer






























    0














    Assuming from your question you want the output like this
    "asfmqwdbd/ilcp"
    for this you can use "^([S]+):" and then use $1.






    share|improve this answer






























      0














      I think you are looking for



      $ echo "asfmqwdbd/ilcp:dftqclk_repasfmq" | perl -pe 's/(S+):.*/$1/ '
      asfmqwdbd/ilcp


      or



      $ perl -le ' $x="asfmqwdbd/ilcp:dftqclk_repasfmq"; $x=~s/(S+):.*/$1/; print $x '
      asfmqwdbd/ilcp

      $





      share|improve this answer






















        Your Answer






        StackExchange.ifUsing("editor", function ()
        StackExchange.using("externalEditor", function ()
        StackExchange.using("snippets", function ()
        StackExchange.snippets.init();
        );
        );
        , "code-snippets");

        StackExchange.ready(function()
        var channelOptions =
        tags: "".split(" "),
        id: "1"
        ;
        initTagRenderer("".split(" "), "".split(" "), channelOptions);

        StackExchange.using("externalEditor", function()
        // Have to fire editor after snippets, if snippets enabled
        if (StackExchange.settings.snippets.snippetsEnabled)
        StackExchange.using("snippets", function()
        createEditor();
        );

        else
        createEditor();

        );

        function createEditor()
        StackExchange.prepareEditor(
        heartbeatType: 'answer',
        autoActivateHeartbeat: false,
        convertImagesToLinks: true,
        noModals: true,
        showLowRepImageUploadWarning: true,
        reputationToPostImages: 10,
        bindNavPrevention: true,
        postfix: "",
        imageUploader:
        brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
        contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
        allowUrls: true
        ,
        onDemand: true,
        discardSelector: ".discard-answer"
        ,immediatelyShowMarkdownHelp:true
        );



        );






        Thibhika Ravichandran is a new contributor. Be nice, and check out our Code of Conduct.









        draft saved

        draft discarded


















        StackExchange.ready(
        function ()
        StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f55036459%2fhow-do-extract-the-string-before-the-colon%23new-answer', 'question_page');

        );

        Post as a guest















        Required, but never shown

























        3 Answers
        3






        active

        oldest

        votes








        3 Answers
        3






        active

        oldest

        votes









        active

        oldest

        votes






        active

        oldest

        votes









        1














        Assuming that semicolon (;) was a typo in the question and you actually meant colon (:) this would be the correct regex:



        • anchor at beginning of line (^)

        • capture one-or-more non-colon characters (([^:]+))

        • match must end on a colon (:)

        #!/usr/bin/perl
        use warnings;
        use strict;

        while (<DATA>)
        print "$1n" if /^([^:]+):/;


        exit 0;

        __DATA__
        asfmqwdbd/ilcp
        asfmqwdbd/ilcp:dftqclk_repasfmq
        asfmqwdbd/ilcp;dftqclk_repasfmq


        Test run:



        $ perl dummy.pl
        asfmqwdbd/ilcp





        share|improve this answer



























          1














          Assuming that semicolon (;) was a typo in the question and you actually meant colon (:) this would be the correct regex:



          • anchor at beginning of line (^)

          • capture one-or-more non-colon characters (([^:]+))

          • match must end on a colon (:)

          #!/usr/bin/perl
          use warnings;
          use strict;

          while (<DATA>)
          print "$1n" if /^([^:]+):/;


          exit 0;

          __DATA__
          asfmqwdbd/ilcp
          asfmqwdbd/ilcp:dftqclk_repasfmq
          asfmqwdbd/ilcp;dftqclk_repasfmq


          Test run:



          $ perl dummy.pl
          asfmqwdbd/ilcp





          share|improve this answer

























            1












            1








            1







            Assuming that semicolon (;) was a typo in the question and you actually meant colon (:) this would be the correct regex:



            • anchor at beginning of line (^)

            • capture one-or-more non-colon characters (([^:]+))

            • match must end on a colon (:)

            #!/usr/bin/perl
            use warnings;
            use strict;

            while (<DATA>)
            print "$1n" if /^([^:]+):/;


            exit 0;

            __DATA__
            asfmqwdbd/ilcp
            asfmqwdbd/ilcp:dftqclk_repasfmq
            asfmqwdbd/ilcp;dftqclk_repasfmq


            Test run:



            $ perl dummy.pl
            asfmqwdbd/ilcp





            share|improve this answer













            Assuming that semicolon (;) was a typo in the question and you actually meant colon (:) this would be the correct regex:



            • anchor at beginning of line (^)

            • capture one-or-more non-colon characters (([^:]+))

            • match must end on a colon (:)

            #!/usr/bin/perl
            use warnings;
            use strict;

            while (<DATA>)
            print "$1n" if /^([^:]+):/;


            exit 0;

            __DATA__
            asfmqwdbd/ilcp
            asfmqwdbd/ilcp:dftqclk_repasfmq
            asfmqwdbd/ilcp;dftqclk_repasfmq


            Test run:



            $ perl dummy.pl
            asfmqwdbd/ilcp






            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Mar 7 at 6:11









            Stefan BeckerStefan Becker

            3,76211125




            3,76211125























                0














                Assuming from your question you want the output like this
                "asfmqwdbd/ilcp"
                for this you can use "^([S]+):" and then use $1.






                share|improve this answer



























                  0














                  Assuming from your question you want the output like this
                  "asfmqwdbd/ilcp"
                  for this you can use "^([S]+):" and then use $1.






                  share|improve this answer

























                    0












                    0








                    0







                    Assuming from your question you want the output like this
                    "asfmqwdbd/ilcp"
                    for this you can use "^([S]+):" and then use $1.






                    share|improve this answer













                    Assuming from your question you want the output like this
                    "asfmqwdbd/ilcp"
                    for this you can use "^([S]+):" and then use $1.







                    share|improve this answer












                    share|improve this answer



                    share|improve this answer










                    answered Mar 7 at 10:28









                    Huban AhmedHuban Ahmed

                    41




                    41





















                        0














                        I think you are looking for



                        $ echo "asfmqwdbd/ilcp:dftqclk_repasfmq" | perl -pe 's/(S+):.*/$1/ '
                        asfmqwdbd/ilcp


                        or



                        $ perl -le ' $x="asfmqwdbd/ilcp:dftqclk_repasfmq"; $x=~s/(S+):.*/$1/; print $x '
                        asfmqwdbd/ilcp

                        $





                        share|improve this answer



























                          0














                          I think you are looking for



                          $ echo "asfmqwdbd/ilcp:dftqclk_repasfmq" | perl -pe 's/(S+):.*/$1/ '
                          asfmqwdbd/ilcp


                          or



                          $ perl -le ' $x="asfmqwdbd/ilcp:dftqclk_repasfmq"; $x=~s/(S+):.*/$1/; print $x '
                          asfmqwdbd/ilcp

                          $





                          share|improve this answer

























                            0












                            0








                            0







                            I think you are looking for



                            $ echo "asfmqwdbd/ilcp:dftqclk_repasfmq" | perl -pe 's/(S+):.*/$1/ '
                            asfmqwdbd/ilcp


                            or



                            $ perl -le ' $x="asfmqwdbd/ilcp:dftqclk_repasfmq"; $x=~s/(S+):.*/$1/; print $x '
                            asfmqwdbd/ilcp

                            $





                            share|improve this answer













                            I think you are looking for



                            $ echo "asfmqwdbd/ilcp:dftqclk_repasfmq" | perl -pe 's/(S+):.*/$1/ '
                            asfmqwdbd/ilcp


                            or



                            $ perl -le ' $x="asfmqwdbd/ilcp:dftqclk_repasfmq"; $x=~s/(S+):.*/$1/; print $x '
                            asfmqwdbd/ilcp

                            $






                            share|improve this answer












                            share|improve this answer



                            share|improve this answer










                            answered Mar 7 at 17:14









                            stack0114106stack0114106

                            4,1982421




                            4,1982421




















                                Thibhika Ravichandran is a new contributor. Be nice, and check out our Code of Conduct.









                                draft saved

                                draft discarded


















                                Thibhika Ravichandran is a new contributor. Be nice, and check out our Code of Conduct.












                                Thibhika Ravichandran is a new contributor. Be nice, and check out our Code of Conduct.











                                Thibhika Ravichandran is a new contributor. Be nice, and check out our Code of Conduct.














                                Thanks for contributing an answer to Stack Overflow!


                                • Please be sure to answer the question. Provide details and share your research!

                                But avoid


                                • Asking for help, clarification, or responding to other answers.

                                • Making statements based on opinion; back them up with references or personal experience.

                                To learn more, see our tips on writing great answers.




                                draft saved


                                draft discarded














                                StackExchange.ready(
                                function ()
                                StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f55036459%2fhow-do-extract-the-string-before-the-colon%23new-answer', 'question_page');

                                );

                                Post as a guest















                                Required, but never shown





















































                                Required, but never shown














                                Required, but never shown












                                Required, but never shown







                                Required, but never shown

































                                Required, but never shown














                                Required, but never shown












                                Required, but never shown







                                Required, but never shown







                                Popular posts from this blog

                                Can't initialize raids on a new ASUS Prime B360M-A motherboard2019 Community Moderator ElectionSimilar to RAID config yet more like mirroring solution?Can't get motherboard serial numberWhy does the BIOS entry point start with a WBINVD instruction?UEFI performance Asus Maximus V Extreme

                                Identity Server 4 is not redirecting to Angular app after login2019 Community Moderator ElectionIdentity Server 4 and dockerIdentityserver implicit flow unauthorized_clientIdentityServer Hybrid Flow - Access Token is null after user successful loginIdentity Server to MVC client : Page Redirect After loginLogin with Steam OpenId(oidc-client-js)Identity Server 4+.NET Core 2.0 + IdentityIdentityServer4 post-login redirect not working in Edge browserCall to IdentityServer4 generates System.NullReferenceException: Object reference not set to an instance of an objectIdentityServer4 without HTTPS not workingHow to get Authorization code from identity server without login form

                                2005 Ahvaz unrest Contents Background Causes Casualties Aftermath See also References Navigation menue"At Least 10 Are Killed by Bombs in Iran""Iran"Archived"Arab-Iranians in Iran to make April 15 'Day of Fury'"State of Mind, State of Order: Reactions to Ethnic Unrest in the Islamic Republic of Iran.10.1111/j.1754-9469.2008.00028.x"Iran hangs Arab separatists"Iran Overview from ArchivedConstitution of the Islamic Republic of Iran"Tehran puzzled by forged 'riots' letter""Iran and its minorities: Down in the second class""Iran: Handling Of Ahvaz Unrest Could End With Televised Confessions""Bombings Rock Iran Ahead of Election""Five die in Iran ethnic clashes""Iran: Need for restraint as anniversary of unrest in Khuzestan approaches"Archived"Iranian Sunni protesters killed in clashes with security forces"Archived