fish shell - run command based on exit status of previous command
My goal is to have a monitor setup, that is as flexible and easy to use as possible. I use fish as my shell and have added the following two lines:
abbr mon 'xrandr --output DP2 --auto --primary --left-of eDP1 || xrandr --output HDMI1 --auto --primary --left-of eDP1 && setxkbmap -layout de -option ctrl:nocaps && i3-msg restart'
abbr moff 'xrandr --output DP2 --off || xrandr --output HDMI1 --off && i3-msg restart'
Which should enable me to just type mon or moff whenever i want to switch my monitor on or off (also the setxkbmap part, because i mainly use a dongle with monitor and keyboard attached to it).
With my understanding concatenating two commands with && runs the second command when the first has succeeded, while concatenating two commands with || only runs the command, when the first command failed.
However in my case the part after && would be run always, because one of the commands should succeed, which it does. See:
tim@arch ~> false || true && echo hello
hello
tim@arch ~> true || false && echo hello
hello
My issue is, that the part after || in my strings never gets run, so the command does nothing, when HDMI1 is connected while DP2 is disconnected.
Why is that? Have i gotten something wrong here?
concatenation xrandr conditional-statements exit-code
asked Feb 15 at 15:51
Tim HiltTim Hilt
4717
add a comment |
My goal is to have a monitor setup, that is as flexible and easy to use as possible. I use fish as my shell and have added the following two lines:
abbr mon 'xrandr --output DP2 --auto --primary --left-of eDP1 || xrandr --output HDMI1 --auto --primary --left-of eDP1 && setxkbmap -layout de -option ctrl:nocaps && i3-msg restart'
abbr moff 'xrandr --output DP2 --off || xrandr --output HDMI1 --off && i3-msg restart'
Which should enable me to just type mon or moff whenever i want to switch my monitor on or off (also the setxkbmap part, because i mainly use a dongle with monitor and keyboard attached to it).
With my understanding concatenating two commands with && runs the second command when the first has succeeded, while concatenating two commands with || only runs the command, when the first command failed.
However in my case the part after && would be run always, because one of the commands should succeed, which it does. See:
tim@arch ~> false || true && echo hello
hello
tim@arch ~> true || false && echo hello
hello
My issue is, that the part after || in my strings never gets run, so the command does nothing, when HDMI1 is connected while DP2 is disconnected.
Why is that? Have i gotten something wrong here?
concatenation xrandr conditional-statements exit-code
asked Feb 15 at 15:51
Tim HiltTim Hilt
4717
add a comment |
My goal is to have a monitor setup, that is as flexible and easy to use as possible. I use fish as my shell and have added the following two lines:
abbr mon 'xrandr --output DP2 --auto --primary --left-of eDP1 || xrandr --output HDMI1 --auto --primary --left-of eDP1 && setxkbmap -layout de -option ctrl:nocaps && i3-msg restart'
abbr moff 'xrandr --output DP2 --off || xrandr --output HDMI1 --off && i3-msg restart'
Which should enable me to just type mon or moff whenever i want to switch my monitor on or off (also the setxkbmap part, because i mainly use a dongle with monitor and keyboard attached to it).
With my understanding concatenating two commands with && runs the second command when the first has succeeded, while concatenating two commands with || only runs the command, when the first command failed.
However in my case the part after && would be run always, because one of the commands should succeed, which it does. See:
tim@arch ~> false || true && echo hello
hello
tim@arch ~> true || false && echo hello
hello
My issue is, that the part after || in my strings never gets run, so the command does nothing, when HDMI1 is connected while DP2 is disconnected.
Why is that? Have i gotten something wrong here?
concatenation xrandr conditional-statements exit-code
asked Feb 15 at 15:51
Tim HiltTim Hilt
4717
My goal is to have a monitor setup, that is as flexible and easy to use as possible. I use fish as my shell and have added the following two lines:
abbr mon 'xrandr --output DP2 --auto --primary --left-of eDP1 || xrandr --output HDMI1 --auto --primary --left-of eDP1 && setxkbmap -layout de -option ctrl:nocaps && i3-msg restart'
abbr moff 'xrandr --output DP2 --off || xrandr --output HDMI1 --off && i3-msg restart'
Which should enable me to just type mon or moff whenever i want to switch my monitor on or off (also the setxkbmap part, because i mainly use a dongle with monitor and keyboard attached to it).
With my understanding concatenating two commands with && runs the second command when the first has succeeded, while concatenating two commands with || only runs the command, when the first command failed.
However in my case the part after && would be run always, because one of the commands should succeed, which it does. See:
tim@arch ~> false || true && echo hello
hello
tim@arch ~> true || false && echo hello
hello
My issue is, that the part after || in my strings never gets run, so the command does nothing, when HDMI1 is connected while DP2 is disconnected.
Why is that? Have i gotten something wrong here?
concatenation xrandr conditional-statements exit-code
concatenation xrandr conditional-statements exit-code
asked Feb 15 at 15:51
Tim HiltTim Hilt
4717
asked Feb 15 at 15:51
Tim HiltTim Hilt
4717
asked Feb 15 at 15:51
Tim HiltTim Hilt
4717
asked Feb 15 at 15:51
Tim HiltTim Hilt
4717
asked Feb 15 at 15:51
Tim HiltTim Hilt
4717
4717
add a comment |
add a comment |
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