In bash, I can do EDITOR=vim crontab -e
. Can I get similar effect in Fish shell?
5 Answers
begin; set -lx EDITOR vim; crontab -e; end
-
5
-
oddly, this doesn't work for me. I'm calling a ruby script, and ENV doesn't pick up the variable I'm setting:
set -lx date '12/04/2012'
– DukeDec 7, 2012 at 23:13 -
@Duke: It works for me.
begin; set -lx date '12/04/2012'; ruby -e 'puts ENV["date"]'; end
Dec 8, 2012 at 0:49 -
11In the meanwhile this has been answered in the Fish FAQ: fishshell.com/docs/current/faq.html#faq-single-env– harmApr 3, 2014 at 9:09
-
4
Don't see why this shouldn't work:
env EDITOR=vim crontab -e
That bypasses the shell completely.
-
4This is so much easier. The only problem is that bypassing the shell disallows any custom fish commands, which are probably locked in your muscle memory. Jun 3, 2013 at 20:11
-
1I saw that in the docs too, but then why doesn't the following work?
env SOME_VAR=1 echo $SOME_VAR
Nov 1, 2017 at 22:50 -
1never mind, i should have just looked it up: stackoverflow.com/questions/10938483/… Nov 1, 2017 at 22:57
That is from the Documentation
SOME_VAR=1 command produces an error: Unknown command "SOME_VAR=1".
Use the env command.
env SOME_VAR=1 command
You can also declare a local variable in a block and that would not bypass the shell
begin
set -lx SOME_VAR 1
command
end
Starting version 3.1, you can use the same syntax used in bash (EDITOR=vim crontab -e
).
PR introducing the feature: https://github.com/fish-shell/fish-shell/pull/6287
depending on a definition of be
function, this can fail
begin
set -lx RAILS_ENV staging
be rails r "p ENV['RAILS_ENV']"
end
In order for it to work:
function be --description 'Runs bundle exec' --no-scope-shadowing
bundle exec $argv
end
Please, see the explanation of --no-scope-shadowing option
-S or --no-scope-shadowing allows the function to access the variables of calling functions. Normally, any variables inside the function that have the same name as variables from the calling function are "shadowed", and their contents is independent of the calling function.