How to set and determine the command line mode of the bash?











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How to set the vi or emacs command line editing mode the Bash AND how to determine which mode is currently set?










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    How to set the vi or emacs command line editing mode the Bash AND how to determine which mode is currently set?










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      How to set the vi or emacs command line editing mode the Bash AND how to determine which mode is currently set?










      share|improve this question







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      How to set the vi or emacs command line editing mode the Bash AND how to determine which mode is currently set?







      bash emacs vi






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      asked 3 hours ago









      Blcknx

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          2 Answers
          2






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          up vote
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          down vote



          accepted










          To set:



          set -o vi


          Or:



          set -o emacs


          (setting one unsets the other. You can do set -o vi +o vi to unset both)



          To check:



          if [[ -o emacs ]]; then
          echo emacs mode
          elif [[ -o vi ]]; then
          echo vi mode
          else
          echo neither
          fi


          That syntax comes from ksh. The set -o vi is POSIX. set -o emacs is not (as Richard Stallman objected to the emacs mode being specified by POSIX) but very common among shell implementations. Some shells support extra editing modes. [[ -o option ]] is not POSIX, but supported by ksh, bash and zsh. [ -o option ] is supported by bash, ksh and yash (note that -o is also a binary OR operator for [).






          share|improve this answer























          • It works and it is surprising, that it is that difficult to determine the mode.
            – Blcknx
            3 hours ago






          • 2




            set -o | egrep -w '^emacs|vi' will return whether emacs or vi is set.
            – Stephen Harris
            3 hours ago


















          up vote
          0
          down vote













          There is also bind -V | grep editing-mode.



          man bash is huge but well worth reading in depth.






          share|improve this answer





















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            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

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            active

            oldest

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            up vote
            8
            down vote



            accepted










            To set:



            set -o vi


            Or:



            set -o emacs


            (setting one unsets the other. You can do set -o vi +o vi to unset both)



            To check:



            if [[ -o emacs ]]; then
            echo emacs mode
            elif [[ -o vi ]]; then
            echo vi mode
            else
            echo neither
            fi


            That syntax comes from ksh. The set -o vi is POSIX. set -o emacs is not (as Richard Stallman objected to the emacs mode being specified by POSIX) but very common among shell implementations. Some shells support extra editing modes. [[ -o option ]] is not POSIX, but supported by ksh, bash and zsh. [ -o option ] is supported by bash, ksh and yash (note that -o is also a binary OR operator for [).






            share|improve this answer























            • It works and it is surprising, that it is that difficult to determine the mode.
              – Blcknx
              3 hours ago






            • 2




              set -o | egrep -w '^emacs|vi' will return whether emacs or vi is set.
              – Stephen Harris
              3 hours ago















            up vote
            8
            down vote



            accepted










            To set:



            set -o vi


            Or:



            set -o emacs


            (setting one unsets the other. You can do set -o vi +o vi to unset both)



            To check:



            if [[ -o emacs ]]; then
            echo emacs mode
            elif [[ -o vi ]]; then
            echo vi mode
            else
            echo neither
            fi


            That syntax comes from ksh. The set -o vi is POSIX. set -o emacs is not (as Richard Stallman objected to the emacs mode being specified by POSIX) but very common among shell implementations. Some shells support extra editing modes. [[ -o option ]] is not POSIX, but supported by ksh, bash and zsh. [ -o option ] is supported by bash, ksh and yash (note that -o is also a binary OR operator for [).






            share|improve this answer























            • It works and it is surprising, that it is that difficult to determine the mode.
              – Blcknx
              3 hours ago






            • 2




              set -o | egrep -w '^emacs|vi' will return whether emacs or vi is set.
              – Stephen Harris
              3 hours ago













            up vote
            8
            down vote



            accepted







            up vote
            8
            down vote



            accepted






            To set:



            set -o vi


            Or:



            set -o emacs


            (setting one unsets the other. You can do set -o vi +o vi to unset both)



            To check:



            if [[ -o emacs ]]; then
            echo emacs mode
            elif [[ -o vi ]]; then
            echo vi mode
            else
            echo neither
            fi


            That syntax comes from ksh. The set -o vi is POSIX. set -o emacs is not (as Richard Stallman objected to the emacs mode being specified by POSIX) but very common among shell implementations. Some shells support extra editing modes. [[ -o option ]] is not POSIX, but supported by ksh, bash and zsh. [ -o option ] is supported by bash, ksh and yash (note that -o is also a binary OR operator for [).






            share|improve this answer














            To set:



            set -o vi


            Or:



            set -o emacs


            (setting one unsets the other. You can do set -o vi +o vi to unset both)



            To check:



            if [[ -o emacs ]]; then
            echo emacs mode
            elif [[ -o vi ]]; then
            echo vi mode
            else
            echo neither
            fi


            That syntax comes from ksh. The set -o vi is POSIX. set -o emacs is not (as Richard Stallman objected to the emacs mode being specified by POSIX) but very common among shell implementations. Some shells support extra editing modes. [[ -o option ]] is not POSIX, but supported by ksh, bash and zsh. [ -o option ] is supported by bash, ksh and yash (note that -o is also a binary OR operator for [).







            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited 3 hours ago

























            answered 3 hours ago









            Stéphane Chazelas

            295k54556898




            295k54556898












            • It works and it is surprising, that it is that difficult to determine the mode.
              – Blcknx
              3 hours ago






            • 2




              set -o | egrep -w '^emacs|vi' will return whether emacs or vi is set.
              – Stephen Harris
              3 hours ago


















            • It works and it is surprising, that it is that difficult to determine the mode.
              – Blcknx
              3 hours ago






            • 2




              set -o | egrep -w '^emacs|vi' will return whether emacs or vi is set.
              – Stephen Harris
              3 hours ago
















            It works and it is surprising, that it is that difficult to determine the mode.
            – Blcknx
            3 hours ago




            It works and it is surprising, that it is that difficult to determine the mode.
            – Blcknx
            3 hours ago




            2




            2




            set -o | egrep -w '^emacs|vi' will return whether emacs or vi is set.
            – Stephen Harris
            3 hours ago




            set -o | egrep -w '^emacs|vi' will return whether emacs or vi is set.
            – Stephen Harris
            3 hours ago












            up vote
            0
            down vote













            There is also bind -V | grep editing-mode.



            man bash is huge but well worth reading in depth.






            share|improve this answer

























              up vote
              0
              down vote













              There is also bind -V | grep editing-mode.



              man bash is huge but well worth reading in depth.






              share|improve this answer























                up vote
                0
                down vote










                up vote
                0
                down vote









                There is also bind -V | grep editing-mode.



                man bash is huge but well worth reading in depth.






                share|improve this answer












                There is also bind -V | grep editing-mode.



                man bash is huge but well worth reading in depth.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 17 mins ago









                studog

                21316




                21316






















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