if-then-else inside Bash Alias












5














I am trying to make a alias for mv so it does its normal behavioer in normal folders and is replaced by git mv inside git repositories. I tried many ways. the if statement works, only the command git mv will not run correctly.



alias mv='"$(

if [ x`git rev-parse --show-toplevel 2> /dev/null` = x ]; 

    echo mv;  

else 

    echo "git mv"; 

fi)"'





bash git alias







share|improve this question




















  • 7




    Use a function, not an alias.
    – Satō Katsura
    Mar 13 '17 at 18:41










  • ... Or even a little custom script
    – roaima
    Mar 13 '17 at 18:51
















5














I am trying to make a alias for mv so it does its normal behavioer in normal folders and is replaced by git mv inside git repositories. I tried many ways. the if statement works, only the command git mv will not run correctly.



alias mv='"$(

if [ x`git rev-parse --show-toplevel 2> /dev/null` = x ]; 

    echo mv;  

else 

    echo "git mv"; 

fi)"'





bash git alias







share|improve this question




















  • 7




    Use a function, not an alias.
    – Satō Katsura
    Mar 13 '17 at 18:41










  • ... Or even a little custom script
    – roaima
    Mar 13 '17 at 18:51














5












5








5







I am trying to make a alias for mv so it does its normal behavioer in normal folders and is replaced by git mv inside git repositories. I tried many ways. the if statement works, only the command git mv will not run correctly.



alias mv='"$(

if [ x`git rev-parse --show-toplevel 2> /dev/null` = x ]; 

    echo mv;  

else 

    echo "git mv"; 

fi)"'





bash git alias







share|improve this question















I am trying to make a alias for mv so it does its normal behavioer in normal folders and is replaced by git mv inside git repositories. I tried many ways. the if statement works, only the command git mv will not run correctly.



alias mv='"$(

if [ x`git rev-parse --show-toplevel 2> /dev/null` = x ]; 

    echo mv;  

else 

    echo "git mv"; 

fi)"'





bash git alias




bash git alias






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 13 '17 at 19:05









Vlastimil

7,6911260133




7,6911260133










asked Mar 13 '17 at 18:40









switch87

525316




525316








  • 7




    Use a function, not an alias.
    – Satō Katsura
    Mar 13 '17 at 18:41










  • ... Or even a little custom script
    – roaima
    Mar 13 '17 at 18:51














  • 7




    Use a function, not an alias.
    – Satō Katsura
    Mar 13 '17 at 18:41










  • ... Or even a little custom script
    – roaima
    Mar 13 '17 at 18:51








7




7




Use a function, not an alias.
– Satō Katsura
Mar 13 '17 at 18:41




Use a function, not an alias.
– Satō Katsura
Mar 13 '17 at 18:41












... Or even a little custom script
– roaima
Mar 13 '17 at 18:51




... Or even a little custom script
– roaima
Mar 13 '17 at 18:51










2 Answers
2






active

oldest

votes


















6














I would use a function for that, like so:



gitmv()

{

    # If in a git repo - call git mv. otherwise- call mv

    if [ x`git rev-parse --show-toplevel 2> /dev/null` = x ]; 

    then

        mv "$@"  

    else 

        git mv "$@" 

    fi

}


Edit:



alias mv=gitmv






share|improve this answer























  • "There is no mechanism for using arguments in the replacement text. If arguments are needed, a shell function should be used." gnu.org/software/bash/manual/html_node/Aliases.html#Aliases
    – jhscheer
    Mar 13 '17 at 18:56










  • indeed, like Sato Katsura also recomanded me I already did it that way. I will edit your answer with my solution (almost the same but with alias)
    – switch87
    Mar 13 '17 at 19:02








  • 1




    @switch87: I'm glad you found a suitable solution for you. It seems your edit got rejected due to a conflict with another (random) edit. I'll add your alias.
    – jhscheer
    Mar 13 '17 at 19:28



















0














Although jhscheer proposed a much better solution (IMHO), it is still possible to achieve what you were trying to do with only an alias.



Your alias did not work because of the external double quotes, which make git mv a single token, and you have no git mv executable. If you remove the external double quotes, your alias should work fine.



By the way, the inner double quotes, in echo "git mv" are useless, but harmless.



I have no git repository immediately available to test, but I just tried with the following alias:



alias foo='$(if [ x"`pwd`" = x"$HOME" ] ; then echo echo; else echo echo foo; fi)'





share|improve this answer





















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    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    6














    I would use a function for that, like so:



    gitmv()
    
{
    
    # If in a git repo - call git mv. otherwise- call mv
    
    if [ x`git rev-parse --show-toplevel 2> /dev/null` = x ]; 
    
    then
    
        mv "$@"  
    
    else 
    
        git mv "$@" 
    
    fi
    
}


    Edit:



    alias mv=gitmv






    share|improve this answer























    • "There is no mechanism for using arguments in the replacement text. If arguments are needed, a shell function should be used." gnu.org/software/bash/manual/html_node/Aliases.html#Aliases
      – jhscheer
      Mar 13 '17 at 18:56










    • indeed, like Sato Katsura also recomanded me I already did it that way. I will edit your answer with my solution (almost the same but with alias)
      – switch87
      Mar 13 '17 at 19:02








    • 1




      @switch87: I'm glad you found a suitable solution for you. It seems your edit got rejected due to a conflict with another (random) edit. I'll add your alias.
      – jhscheer
      Mar 13 '17 at 19:28
















    6














    I would use a function for that, like so:



    gitmv()
    
{
    
    # If in a git repo - call git mv. otherwise- call mv
    
    if [ x`git rev-parse --show-toplevel 2> /dev/null` = x ]; 
    
    then
    
        mv "$@"  
    
    else 
    
        git mv "$@" 
    
    fi
    
}


    Edit:



    alias mv=gitmv






    share|improve this answer























    • "There is no mechanism for using arguments in the replacement text. If arguments are needed, a shell function should be used." gnu.org/software/bash/manual/html_node/Aliases.html#Aliases
      – jhscheer
      Mar 13 '17 at 18:56










    • indeed, like Sato Katsura also recomanded me I already did it that way. I will edit your answer with my solution (almost the same but with alias)
      – switch87
      Mar 13 '17 at 19:02








    • 1




      @switch87: I'm glad you found a suitable solution for you. It seems your edit got rejected due to a conflict with another (random) edit. I'll add your alias.
      – jhscheer
      Mar 13 '17 at 19:28














    6












    6








    6






    I would use a function for that, like so:



    gitmv()
    
{
    
    # If in a git repo - call git mv. otherwise- call mv
    
    if [ x`git rev-parse --show-toplevel 2> /dev/null` = x ]; 
    
    then
    
        mv "$@"  
    
    else 
    
        git mv "$@" 
    
    fi
    
}


    Edit:



    alias mv=gitmv






    share|improve this answer














    I would use a function for that, like so:



    gitmv()
    
{
    
    # If in a git repo - call git mv. otherwise- call mv
    
    if [ x`git rev-parse --show-toplevel 2> /dev/null` = x ]; 
    
    then
    
        mv "$@"  
    
    else 
    
        git mv "$@" 
    
    fi
    
}


    Edit:



    alias mv=gitmv







    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited 1 hour ago









    Tadaboody

    32




    32










    answered Mar 13 '17 at 18:52









    jhscheer

    963




    963












    • "There is no mechanism for using arguments in the replacement text. If arguments are needed, a shell function should be used." gnu.org/software/bash/manual/html_node/Aliases.html#Aliases
      – jhscheer
      Mar 13 '17 at 18:56










    • indeed, like Sato Katsura also recomanded me I already did it that way. I will edit your answer with my solution (almost the same but with alias)
      – switch87
      Mar 13 '17 at 19:02








    • 1




      @switch87: I'm glad you found a suitable solution for you. It seems your edit got rejected due to a conflict with another (random) edit. I'll add your alias.
      – jhscheer
      Mar 13 '17 at 19:28


















    • "There is no mechanism for using arguments in the replacement text. If arguments are needed, a shell function should be used." gnu.org/software/bash/manual/html_node/Aliases.html#Aliases
      – jhscheer
      Mar 13 '17 at 18:56










    • indeed, like Sato Katsura also recomanded me I already did it that way. I will edit your answer with my solution (almost the same but with alias)
      – switch87
      Mar 13 '17 at 19:02








    • 1




      @switch87: I'm glad you found a suitable solution for you. It seems your edit got rejected due to a conflict with another (random) edit. I'll add your alias.
      – jhscheer
      Mar 13 '17 at 19:28
















    "There is no mechanism for using arguments in the replacement text. If arguments are needed, a shell function should be used." gnu.org/software/bash/manual/html_node/Aliases.html#Aliases
    – jhscheer
    Mar 13 '17 at 18:56




    "There is no mechanism for using arguments in the replacement text. If arguments are needed, a shell function should be used." gnu.org/software/bash/manual/html_node/Aliases.html#Aliases
    – jhscheer
    Mar 13 '17 at 18:56












    indeed, like Sato Katsura also recomanded me I already did it that way. I will edit your answer with my solution (almost the same but with alias)
    – switch87
    Mar 13 '17 at 19:02






    indeed, like Sato Katsura also recomanded me I already did it that way. I will edit your answer with my solution (almost the same but with alias)
    – switch87
    Mar 13 '17 at 19:02






    1




    1




    @switch87: I'm glad you found a suitable solution for you. It seems your edit got rejected due to a conflict with another (random) edit. I'll add your alias.
    – jhscheer
    Mar 13 '17 at 19:28




    @switch87: I'm glad you found a suitable solution for you. It seems your edit got rejected due to a conflict with another (random) edit. I'll add your alias.
    – jhscheer
    Mar 13 '17 at 19:28













    0














    Although jhscheer proposed a much better solution (IMHO), it is still possible to achieve what you were trying to do with only an alias.



    Your alias did not work because of the external double quotes, which make git mv a single token, and you have no git mv executable. If you remove the external double quotes, your alias should work fine.



    By the way, the inner double quotes, in echo "git mv" are useless, but harmless.



    I have no git repository immediately available to test, but I just tried with the following alias:



    alias foo='$(if [ x"`pwd`" = x"$HOME" ] ; then echo echo; else echo echo foo; fi)'





    share|improve this answer


























      0














      Although jhscheer proposed a much better solution (IMHO), it is still possible to achieve what you were trying to do with only an alias.



      Your alias did not work because of the external double quotes, which make git mv a single token, and you have no git mv executable. If you remove the external double quotes, your alias should work fine.



      By the way, the inner double quotes, in echo "git mv" are useless, but harmless.



      I have no git repository immediately available to test, but I just tried with the following alias:



      alias foo='$(if [ x"`pwd`" = x"$HOME" ] ; then echo echo; else echo echo foo; fi)'





      share|improve this answer
























        0












        0








        0






        Although jhscheer proposed a much better solution (IMHO), it is still possible to achieve what you were trying to do with only an alias.



        Your alias did not work because of the external double quotes, which make git mv a single token, and you have no git mv executable. If you remove the external double quotes, your alias should work fine.



        By the way, the inner double quotes, in echo "git mv" are useless, but harmless.



        I have no git repository immediately available to test, but I just tried with the following alias:



        alias foo='$(if [ x"`pwd`" = x"$HOME" ] ; then echo echo; else echo echo foo; fi)'





        share|improve this answer












        Although jhscheer proposed a much better solution (IMHO), it is still possible to achieve what you were trying to do with only an alias.



        Your alias did not work because of the external double quotes, which make git mv a single token, and you have no git mv executable. If you remove the external double quotes, your alias should work fine.



        By the way, the inner double quotes, in echo "git mv" are useless, but harmless.



        I have no git repository immediately available to test, but I just tried with the following alias:



        alias foo='$(if [ x"`pwd`" = x"$HOME" ] ; then echo echo; else echo echo foo; fi)'






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 1 hour ago









        user2233709

        633310




        633310






























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