Unable to print * (star) value with echo











up vote
0
down vote

favorite












I have,



my.sh



while IFS= read -r line ; do

v1="$line";

t1=`echo $line | awk -F= '{print $2}'`

echo "$t1"

done < $1


sample.txt



say=hello

test=0 0/15 * * * ?

logs=valuelogs


Output :



[root@centos gen]# ./my.sh test.txt

hello

0 0/15 hello.txt 2.txt tmp.log my.sh sample.txt test.sh test.txt hello.txt 

2.txt tmp.log my.sh sample.txt test.sh test.txt hello.txt 2.txt tmp.log 

my.sh sample.txt test.sh test.txt ?

valuelogs


Here we get bad output due to executed command like echo * & its give list of file on current directory as output.



Is there any alternative solution for same ?






linux bash shell-script centos







share|improve this question






















  • Related: When is double-quoting necessary?
    – Kusalananda
    yesterday















up vote
0
down vote

favorite












I have,



my.sh



while IFS= read -r line ; do

v1="$line";

t1=`echo $line | awk -F= '{print $2}'`

echo "$t1"

done < $1


sample.txt



say=hello

test=0 0/15 * * * ?

logs=valuelogs


Output :



[root@centos gen]# ./my.sh test.txt

hello

0 0/15 hello.txt 2.txt tmp.log my.sh sample.txt test.sh test.txt hello.txt 

2.txt tmp.log my.sh sample.txt test.sh test.txt hello.txt 2.txt tmp.log 

my.sh sample.txt test.sh test.txt ?

valuelogs


Here we get bad output due to executed command like echo * & its give list of file on current directory as output.



Is there any alternative solution for same ?






linux bash shell-script centos







share|improve this question






















  • Related: When is double-quoting necessary?
    – Kusalananda
    yesterday













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have,



my.sh



while IFS= read -r line ; do

v1="$line";

t1=`echo $line | awk -F= '{print $2}'`

echo "$t1"

done < $1


sample.txt



say=hello

test=0 0/15 * * * ?

logs=valuelogs


Output :



[root@centos gen]# ./my.sh test.txt

hello

0 0/15 hello.txt 2.txt tmp.log my.sh sample.txt test.sh test.txt hello.txt 

2.txt tmp.log my.sh sample.txt test.sh test.txt hello.txt 2.txt tmp.log 

my.sh sample.txt test.sh test.txt ?

valuelogs


Here we get bad output due to executed command like echo * & its give list of file on current directory as output.



Is there any alternative solution for same ?






linux bash shell-script centos







share|improve this question













I have,



my.sh



while IFS= read -r line ; do

v1="$line";

t1=`echo $line | awk -F= '{print $2}'`

echo "$t1"

done < $1


sample.txt



say=hello

test=0 0/15 * * * ?

logs=valuelogs


Output :



[root@centos gen]# ./my.sh test.txt

hello

0 0/15 hello.txt 2.txt tmp.log my.sh sample.txt test.sh test.txt hello.txt 

2.txt tmp.log my.sh sample.txt test.sh test.txt hello.txt 2.txt tmp.log 

my.sh sample.txt test.sh test.txt ?

valuelogs


Here we get bad output due to executed command like echo * & its give list of file on current directory as output.



Is there any alternative solution for same ?






linux bash shell-script centos




linux bash shell-script centos






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked yesterday









Nullpointer

2571416




2571416












  • Related: When is double-quoting necessary?
    – Kusalananda
    yesterday


















  • Related: When is double-quoting necessary?
    – Kusalananda
    yesterday
















Related: When is double-quoting necessary?
– Kusalananda
yesterday




Related: When is double-quoting necessary?
– Kusalananda
yesterday










2 Answers
2






active

oldest

votes

















up vote
3
down vote



accepted










The problem is in the echo $line inside the back quotes. Double quote the variable to prevent wildcard expansion:



t1=`echo "$line" | awk -F= '{print $2}'`





share|improve this answer





















  • Thanks Bro, It's work for me
    – Nullpointer
    yesterday


















up vote
2
down vote













You can rewrite your shell script as



awk -F= '{print $2}' "$1"


and avoid all the shell handling entirely (apart from the single quotes here and the $1 parameter expansion which you want anyway); or even as an AWK script



#!/usr/bin/awk -f



BEGIN { FS="=" }



{ print $2 }





share|improve this answer























    Your Answer








    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "106"
    };
    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: false,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: null,
    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
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f489500%2funable-to-print-star-value-with-echo%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    3
    down vote



    accepted










    The problem is in the echo $line inside the back quotes. Double quote the variable to prevent wildcard expansion:



    t1=`echo "$line" | awk -F= '{print $2}'`





    share|improve this answer





















    • Thanks Bro, It's work for me
      – Nullpointer
      yesterday















    up vote
    3
    down vote



    accepted










    The problem is in the echo $line inside the back quotes. Double quote the variable to prevent wildcard expansion:



    t1=`echo "$line" | awk -F= '{print $2}'`





    share|improve this answer





















    • Thanks Bro, It's work for me
      – Nullpointer
      yesterday













    up vote
    3
    down vote



    accepted







    up vote
    3
    down vote



    accepted






    The problem is in the echo $line inside the back quotes. Double quote the variable to prevent wildcard expansion:



    t1=`echo "$line" | awk -F= '{print $2}'`





    share|improve this answer












    The problem is in the echo $line inside the back quotes. Double quote the variable to prevent wildcard expansion:



    t1=`echo "$line" | awk -F= '{print $2}'`






    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered yesterday









    choroba

    26.2k44672




    26.2k44672












    • Thanks Bro, It's work for me
      – Nullpointer
      yesterday


















    • Thanks Bro, It's work for me
      – Nullpointer
      yesterday
















    Thanks Bro, It's work for me
    – Nullpointer
    yesterday




    Thanks Bro, It's work for me
    – Nullpointer
    yesterday












    up vote
    2
    down vote













    You can rewrite your shell script as



    awk -F= '{print $2}' "$1"


    and avoid all the shell handling entirely (apart from the single quotes here and the $1 parameter expansion which you want anyway); or even as an AWK script



    #!/usr/bin/awk -f
    

    
BEGIN { FS="=" }
    

    
{ print $2 }





    share|improve this answer



























      up vote
      2
      down vote













      You can rewrite your shell script as



      awk -F= '{print $2}' "$1"


      and avoid all the shell handling entirely (apart from the single quotes here and the $1 parameter expansion which you want anyway); or even as an AWK script



      #!/usr/bin/awk -f
      

      
BEGIN { FS="=" }
      

      
{ print $2 }





      share|improve this answer

























        up vote
        2
        down vote










        up vote
        2
        down vote









        You can rewrite your shell script as



        awk -F= '{print $2}' "$1"


        and avoid all the shell handling entirely (apart from the single quotes here and the $1 parameter expansion which you want anyway); or even as an AWK script



        #!/usr/bin/awk -f
        

        
BEGIN { FS="=" }
        

        
{ print $2 }





        share|improve this answer














        You can rewrite your shell script as



        awk -F= '{print $2}' "$1"


        and avoid all the shell handling entirely (apart from the single quotes here and the $1 parameter expansion which you want anyway); or even as an AWK script



        #!/usr/bin/awk -f
        

        
BEGIN { FS="=" }
        

        
{ print $2 }






        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited yesterday

























        answered yesterday









        Stephen Kitt

        162k24360438




        162k24360438






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Unix & Linux Stack Exchange!


            • 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.





            Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


            Please pay close attention to the following guidance:


            • 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%2funix.stackexchange.com%2fquestions%2f489500%2funable-to-print-star-value-with-echo%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

            Accessing regular linux commands in Huawei's Dopra Linux

            Image
            4 Backstory: I have a Huawei HG8245 router in my house and I want to change the default username/password. I've tried following this guide but the config file always gets reset. My ISP isn't helping either so I'm looking for other ways to accomplish this. The router has telnet access so this seems like a way to change the credentials. The first shell I gain access to looks like this: WAP> Pressing "?" gives me a list of available commands which I've pasted here, the two interesting ones are "su" and "shell". I can't seem to get su access, even after logging in as root (challenge password prompt, and then nothing happens), but shell gives me a proper linux shell. WAP>shell BusyBox v1.18.4 (2017-12-26 17:06:34 CST) built-in shell (ash) Enter 'hel...
            Read more

            Can't connect RFCOMM socket: Host is down

            Image
            up vote 3 down vote favorite I have bluez 5.4.3 and I am attempting to communicate with a ble device through minicom. These two deceives (my computer and a bluno nano) are alreadt paired and this has been my method so far. #bluetoothctl # pair xx:xx:xx:xx:xx:xx # exit Everything is working well so far then... #sudo rfcomm connect /dev/rfcomm0 xx:xx:xx:xx:xx:xx 1 & [1] 3665 Can't connect RFCOMM socket: Host is down Does anyone know how to resolve this issue? Any help would be very much appreciated. bluetooth bluez share | improve this question asked Feb 9 '17 at 18:46 Brandon Knape 46 2 ...
            Read more

            Kernel panic - not syncing: Fatal Exception in Interrupt

            Image
            0 Every day this error occured on my pc, kernel panic error on interrupt, what will be the problem? linux-mint share asked 6 mins ago Vinod Selvin Vinod Selvin 1 1 New contributor Vinod Selvin is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct. add a comment ...
            Read more