runaway regular expression error in awk












0














I have a script which converts expressions in different units to standard units like:
distance=1km -> distance=1000m.



This is my code:



#!/bin/bash

cat "$1" | grep '=' | awk -F= '{switch ($2) {

                    case  /^[0-9]+s$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+min$/ : print $1"="$2*60;

                    break; 

                    case /^[0-9]+h$/ : print $1"="$2*3600;

                    break;

                    case /^[0-9]+d$/ : print $1"="$2*3600*24;

                    break;

                    case /^[0-9]+mm$/ : print $1"="$2/1000;

                    break;

                    case /^[0-9]+sm$/ : print $1"="$2/100;

                    break;

                    case /^[0-9]+dm$/ : print $1"="$2/10;

                    break;

                    case /^[0-9]+m$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+km$/ : print $1"="$2*1000;

                    break;

                    case /^[0-9]+mg$/ : print $1"="$2/1000000;

                    break;

                    case /^[0-9]+g$/ : print $1"="$2/1000;

                    break;

                    case /^[0-9]+kg$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+t$/ : print $1"="$2*1000;

                    break; }

                }'

fi


But when I'm trying to run it I have two errors:



awk: line 1: syntax error at or near {

awk: line 2: runaway regular expression / : print $ ...





command-line bash awk







share|improve this question
























  • What does your input file look like? Why do you have a fi at the end of your script? That should give you a different error from what you show.
    – terdon♦
    Dec 4 '18 at 10:22












  • Are you using GNU Awk (gawk), or some other implementation - perhaps mawk?
    – steeldriver
    Dec 4 '18 at 12:15
















0














I have a script which converts expressions in different units to standard units like:
distance=1km -> distance=1000m.



This is my code:



#!/bin/bash

cat "$1" | grep '=' | awk -F= '{switch ($2) {

                    case  /^[0-9]+s$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+min$/ : print $1"="$2*60;

                    break; 

                    case /^[0-9]+h$/ : print $1"="$2*3600;

                    break;

                    case /^[0-9]+d$/ : print $1"="$2*3600*24;

                    break;

                    case /^[0-9]+mm$/ : print $1"="$2/1000;

                    break;

                    case /^[0-9]+sm$/ : print $1"="$2/100;

                    break;

                    case /^[0-9]+dm$/ : print $1"="$2/10;

                    break;

                    case /^[0-9]+m$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+km$/ : print $1"="$2*1000;

                    break;

                    case /^[0-9]+mg$/ : print $1"="$2/1000000;

                    break;

                    case /^[0-9]+g$/ : print $1"="$2/1000;

                    break;

                    case /^[0-9]+kg$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+t$/ : print $1"="$2*1000;

                    break; }

                }'

fi


But when I'm trying to run it I have two errors:



awk: line 1: syntax error at or near {

awk: line 2: runaway regular expression / : print $ ...





command-line bash awk







share|improve this question
























  • What does your input file look like? Why do you have a fi at the end of your script? That should give you a different error from what you show.
    – terdon♦
    Dec 4 '18 at 10:22












  • Are you using GNU Awk (gawk), or some other implementation - perhaps mawk?
    – steeldriver
    Dec 4 '18 at 12:15














0












0








0







I have a script which converts expressions in different units to standard units like:
distance=1km -> distance=1000m.



This is my code:



#!/bin/bash

cat "$1" | grep '=' | awk -F= '{switch ($2) {

                    case  /^[0-9]+s$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+min$/ : print $1"="$2*60;

                    break; 

                    case /^[0-9]+h$/ : print $1"="$2*3600;

                    break;

                    case /^[0-9]+d$/ : print $1"="$2*3600*24;

                    break;

                    case /^[0-9]+mm$/ : print $1"="$2/1000;

                    break;

                    case /^[0-9]+sm$/ : print $1"="$2/100;

                    break;

                    case /^[0-9]+dm$/ : print $1"="$2/10;

                    break;

                    case /^[0-9]+m$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+km$/ : print $1"="$2*1000;

                    break;

                    case /^[0-9]+mg$/ : print $1"="$2/1000000;

                    break;

                    case /^[0-9]+g$/ : print $1"="$2/1000;

                    break;

                    case /^[0-9]+kg$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+t$/ : print $1"="$2*1000;

                    break; }

                }'

fi


But when I'm trying to run it I have two errors:



awk: line 1: syntax error at or near {

awk: line 2: runaway regular expression / : print $ ...





command-line bash awk







share|improve this question















I have a script which converts expressions in different units to standard units like:
distance=1km -> distance=1000m.



This is my code:



#!/bin/bash

cat "$1" | grep '=' | awk -F= '{switch ($2) {

                    case  /^[0-9]+s$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+min$/ : print $1"="$2*60;

                    break; 

                    case /^[0-9]+h$/ : print $1"="$2*3600;

                    break;

                    case /^[0-9]+d$/ : print $1"="$2*3600*24;

                    break;

                    case /^[0-9]+mm$/ : print $1"="$2/1000;

                    break;

                    case /^[0-9]+sm$/ : print $1"="$2/100;

                    break;

                    case /^[0-9]+dm$/ : print $1"="$2/10;

                    break;

                    case /^[0-9]+m$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+km$/ : print $1"="$2*1000;

                    break;

                    case /^[0-9]+mg$/ : print $1"="$2/1000000;

                    break;

                    case /^[0-9]+g$/ : print $1"="$2/1000;

                    break;

                    case /^[0-9]+kg$/ : print $1"="$2*1;

                    break;

                    case /^[0-9]+t$/ : print $1"="$2*1000;

                    break; }

                }'

fi


But when I'm trying to run it I have two errors:



awk: line 1: syntax error at or near {

awk: line 2: runaway regular expression / : print $ ...





command-line bash awk




command-line bash awk






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Dec 4 '18 at 10:19









terdon♦

64.6k12137214




64.6k12137214










asked Dec 4 '18 at 9:19









tramakarov

11




11












  • What does your input file look like? Why do you have a fi at the end of your script? That should give you a different error from what you show.
    – terdon♦
    Dec 4 '18 at 10:22












  • Are you using GNU Awk (gawk), or some other implementation - perhaps mawk?
    – steeldriver
    Dec 4 '18 at 12:15


















  • What does your input file look like? Why do you have a fi at the end of your script? That should give you a different error from what you show.
    – terdon♦
    Dec 4 '18 at 10:22












  • Are you using GNU Awk (gawk), or some other implementation - perhaps mawk?
    – steeldriver
    Dec 4 '18 at 12:15
















What does your input file look like? Why do you have a fi at the end of your script? That should give you a different error from what you show.
– terdon♦
Dec 4 '18 at 10:22






What does your input file look like? Why do you have a fi at the end of your script? That should give you a different error from what you show.
– terdon♦
Dec 4 '18 at 10:22














Are you using GNU Awk (gawk), or some other implementation - perhaps mawk?
– steeldriver
Dec 4 '18 at 12:15




Are you using GNU Awk (gawk), or some other implementation - perhaps mawk?
– steeldriver
Dec 4 '18 at 12:15










1 Answer
1






active

oldest

votes


















0














I'm almost certain that the error is because your system is configured to use mawk (which currently does not appear to support the switch ... case construct) as the default implementation of awk - rather than gawk (GNU Awk):



$ sudo update-alternatives --set awk /usr/bin/mawk

update-alternatives: using /usr/bin/mawk to provide /usr/bin/awk (awk) in manual mode

$ 

$ echo 'abc:123' | awk -F: '{switch($2) {case /^[0-9]+$/: print $1; break;}}'

awk: line 1: syntax error at or near {

awk: line 1: runaway regular expression /: print $1 ...


whereas with GNU awk



$ sudo update-alternatives --set awk /usr/bin/gawk

update-alternatives: using /usr/bin/gawk to provide /usr/bin/awk (awk) in manual mode

$ 

$ echo 'abc:123' | awk -F: '{switch($2) {case /^[0-9]+$/: print $1; break;}}'

abc





share|improve this answer





















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    1 Answer
    1






    active

    oldest

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    oldest

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    active

    oldest

    votes









    0














    I'm almost certain that the error is because your system is configured to use mawk (which currently does not appear to support the switch ... case construct) as the default implementation of awk - rather than gawk (GNU Awk):



    $ sudo update-alternatives --set awk /usr/bin/mawk
    
update-alternatives: using /usr/bin/mawk to provide /usr/bin/awk (awk) in manual mode
    
$ 
    
$ echo 'abc:123' | awk -F: '{switch($2) {case /^[0-9]+$/: print $1; break;}}'
    
awk: line 1: syntax error at or near {
    
awk: line 1: runaway regular expression /: print $1 ...


    whereas with GNU awk



    $ sudo update-alternatives --set awk /usr/bin/gawk
    
update-alternatives: using /usr/bin/gawk to provide /usr/bin/awk (awk) in manual mode
    
$ 
    
$ echo 'abc:123' | awk -F: '{switch($2) {case /^[0-9]+$/: print $1; break;}}'
    
abc





    share|improve this answer


























      0














      I'm almost certain that the error is because your system is configured to use mawk (which currently does not appear to support the switch ... case construct) as the default implementation of awk - rather than gawk (GNU Awk):



      $ sudo update-alternatives --set awk /usr/bin/mawk
      
update-alternatives: using /usr/bin/mawk to provide /usr/bin/awk (awk) in manual mode
      
$ 
      
$ echo 'abc:123' | awk -F: '{switch($2) {case /^[0-9]+$/: print $1; break;}}'
      
awk: line 1: syntax error at or near {
      
awk: line 1: runaway regular expression /: print $1 ...


      whereas with GNU awk



      $ sudo update-alternatives --set awk /usr/bin/gawk
      
update-alternatives: using /usr/bin/gawk to provide /usr/bin/awk (awk) in manual mode
      
$ 
      
$ echo 'abc:123' | awk -F: '{switch($2) {case /^[0-9]+$/: print $1; break;}}'
      
abc





      share|improve this answer
























        0












        0








        0






        I'm almost certain that the error is because your system is configured to use mawk (which currently does not appear to support the switch ... case construct) as the default implementation of awk - rather than gawk (GNU Awk):



        $ sudo update-alternatives --set awk /usr/bin/mawk
        
update-alternatives: using /usr/bin/mawk to provide /usr/bin/awk (awk) in manual mode
        
$ 
        
$ echo 'abc:123' | awk -F: '{switch($2) {case /^[0-9]+$/: print $1; break;}}'
        
awk: line 1: syntax error at or near {
        
awk: line 1: runaway regular expression /: print $1 ...


        whereas with GNU awk



        $ sudo update-alternatives --set awk /usr/bin/gawk
        
update-alternatives: using /usr/bin/gawk to provide /usr/bin/awk (awk) in manual mode
        
$ 
        
$ echo 'abc:123' | awk -F: '{switch($2) {case /^[0-9]+$/: print $1; break;}}'
        
abc





        share|improve this answer












        I'm almost certain that the error is because your system is configured to use mawk (which currently does not appear to support the switch ... case construct) as the default implementation of awk - rather than gawk (GNU Awk):



        $ sudo update-alternatives --set awk /usr/bin/mawk
        
update-alternatives: using /usr/bin/mawk to provide /usr/bin/awk (awk) in manual mode
        
$ 
        
$ echo 'abc:123' | awk -F: '{switch($2) {case /^[0-9]+$/: print $1; break;}}'
        
awk: line 1: syntax error at or near {
        
awk: line 1: runaway regular expression /: print $1 ...


        whereas with GNU awk



        $ sudo update-alternatives --set awk /usr/bin/gawk
        
update-alternatives: using /usr/bin/gawk to provide /usr/bin/awk (awk) in manual mode
        
$ 
        
$ echo 'abc:123' | awk -F: '{switch($2) {case /^[0-9]+$/: print $1; break;}}'
        
abc






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Dec 4 '18 at 19:16









        steeldriver

        65.9k11105178




        65.9k11105178






























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