The friendly interactive shell (fish) is a Unix shell that focuses on interactive use, discoverability, and user friendliness.

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Very weird directory when editing a function in Fish

I am just curious what the meaning is of this bizarre directory from which atom is launched to edit a function from the Fish shell. Anyone have any idea?
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20 views

How to expand aliases in fish shell?

In bash you can expand an alias you type. For example if I have an alias cmd="cd ~/user", typing in cmd and then hitting Ctrl+Alt+e would change it to cd ~/user. Is there a way to do this with fish?
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23 views

Different options for installing Fish shell on OS X

I want to install Fish on my Mac, and there are three different installation options on the Fish website: there is an installer, installation via Homebrew, and an app. Which one of these should I ...
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2answers
18 views

Unescaped commandline content in fish shell

Is there a way to get the unescaped content of command line in fish? I mean if command line is like ... $ ls 'foo' "bar" ... the desired output would be ls 'foo' "bar". The commandline fish ...
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125 views

Fish terminal + iTerm, only run shell integration if terminal is iTerm

iTerm has a shell integration script that enables some fancy features, as in having the ability to scroll up to last prompt (in case if there was a lot of stdout i.e. when compiling some code). ...
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20 views

Pipe in Environment variable in fish shell doesn't execute the first command?

I want to set fish_greeting to date --rfc-2822 | cowsay -f tux | lolcat (don't judge me). When I run date --rfc-2822 | cowsay -f tux | lolcat interactively, I get the proper output (the date in a ...
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2answers
62 views

Ctrl-enter for fish shell

I had tried to create some accept completion and execute right away combination in fish on pressing Ctrl+Enter. function fish_user_key_bindings bind \c\n accept-autosuggestion execute end ...
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2answers
129 views

Add abbreviations in fish config

I would like to use the abbreviations feature of the fish shell, especially for the known bash variable !! or aliases to common git commands. I know that abbreviations can be added like in the ...
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3k views

Why am I having / how can I fix this error: “shell_session_update: command not found”

Background I am getting into Ruby 2.x, and Rails 4.x, on a MacBook using OS X El Capitan (10.11.3), using the fish shell, employing the integration listed on this page: RVM - Fish Shell (Integration) ...
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45 views

How to chain a group of commands in Fish like { … } Bash?

I'm aware of chain Fish commands via && or || but I'm willing to chain a set of commands Code env git clone --depth=1 https://github.com/rafaelrinaldi/theme-pure.git; or { printf "Error: ...
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43 views

Using rbenv with the fish shell

When using the recommanded way to setup rbenv, `eval "$(rbenv init -)", I get: $(...) is not supported. In fish, please use '(rbenv)'. ~/.config/fish/config.fish (line 5): eval "$(rbenv init -)" ...
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For what purpose is the '&-' file descriptor used in fish?

From the fish manual: [The File Descripter may be] an ampersand followed by a minus sign (&-). The file descriptor will be closed From the Arch wiki:. Silencing standard output: $ ...
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157 views

Is administrator account necessary in order to use shells such as zsh and fish?

I have a weird situation. I’m using Mac OS X 10.11 (El Capitan) and iTerm2. Zsh is listed by default in /etc/shells as /bin/zsh, and this allows me to use Zsh without any issues on my standard ...
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1answer
88 views

Trouble installing fish shell on OS X non-admin user group

I am struggling to install the fish shell on OS X El Capitan. My user structure is setup so I have an administrator account and a standard account. The standard account is the one that I use and ...
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2answers
2k views

Running the output of `ssh-agent` in fish; what does `setenv` do?

When I want to start (or restart) ssh-agent, it gives me a few commands that I should run by doing eval $(ssh-agent). Of course this fails for fish, since it gives syntax for bash or csh. The ...
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229 views

Creating an alias for in fish shell: The file 'vim' is not executable by this user

I'm trying to create an alias for vim to execute vimx. After creating a new terminal when I try to auto complete vi, I get the following error: fish: The file 'vim' is not executable by this user /...
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43 views

How to get fish-style formatting with less

Let's say I run a command like ls in fish and get lots of output, how do I scroll through it and still keep the fish formatting or something like it? ls | less doesn't keep the formatting. I know ...
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3answers
81 views

What's the fatest way to calculate in command line?

Is there a faster way to calculate in command line the following: echo "4 * 5" | bc
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1k views

How to run a command in background with no output unless there's an error

How to suppress a command's output but show it if the command exit codes an error?
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82 views

RVM is not a function message when using fish shell

I'm trying to use rvm from within the fish shell rvm gemset use rails3 I'm getting the following error message from fish RVM is not a function, selecting rubies with 'rvm use ...' will not work. ...
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2answers
24 views

Can a fish script distinguish between being sourced and executed?

I have a fish script that exports some variables and launches a command at the end. I'd like to be able to source this file to bring these variables into the current shell session, but without ...
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37 views

Let ctrl-c end entire fish function instead of one command in the function?

When executing a multi-line fish function, is there a way to let ctrl-c terminate the entire fish function instead of terminating just the currently running command in the function and letting the ...
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40 views

using FISH shell — set default folder for multiple tabs?

I'm using fish shell in OS X. Using the standard bash shell, you can open multiple tabs in Terminal, cd to a different directory in each, and then save the setup as a Window Group (via Window > ...
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1answer
470 views

How do I get fish shell prompt to show the hostname?

I'm attempting to make my Fish prompt look like the old Gentoo shell did. user@hostname ~ % where the user@hostname is green, and the $PWD and symbol were blue. Right now it only shows: user@ ~ %, ...
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1answer
87 views

Escape-backspace behavior in fish shell like in other shells

I recently started using the fish shell for some things and generally like it. However I've run across one situation that would be great if there were a workaround. Say I typed a command like this: ...
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113 views

Fish Shell STDERR not outputted by default

I am using the fish shell, which until this moment had been a perfect replacement of the good old bash, but I came across the following problem. fish does not forward STDERR to STDOUT. Of course if I ...
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How to get Fish shell and NVM both installed with Homebrew to work together?

I am trying to manage my packages for OSX using Homebrew as much a I can. I have installed both the Fish Shell and NVM using Homebrew but cannot get Fish to recognize my NVM installation. NVM ...
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136 views

Run git command from an external directory in fish function

In a fish function, can I run a command from a certain directory without changing into it? or Can I run a git command (push) from outside the repository by specifying its path somehow? I'd like ...
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1answer
42 views

$status in Fish prompt always prints 0

I tried to add $status to my prompt in the fish shell but it always prints 0. This question was asked on irc a while back and i'm surprised there wasn't a answer here so i thought i'd post it here ...
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1answer
97 views

Custom bash 'context' when running from FISH

First of all, I'm on OSX10. My default shell is BASH, which I have set up (through .profile and .bashrc) to automatically run the FISH shell when I open my terminal emulator. This allows me to set up ...
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1answer
316 views

How can I enable tab completion for a fish function/alias?

Probably easier to just use an example here. I have a function ss that just calls: sudo systemctl $argv Tab completion works fine with the full command, but not for the ss function. I.e., ss start ...
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1answer
217 views

How to get byobu help screen (shift-F1) to work under a fish login shell?

I can get the Shift-F1 to show the help for a user that has fish as login shell. I get a glimpse of an error message that gets quickly overwritten. It says fish: Variables may not be used as ...
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1answer
1k views

How to set fish as default shell in Cygwin?

I installed fish and can start it. Now I would like to use it as my default shell in Cygwin. How may I achieve this? So far I tried two thing. I overwrote the content of /etc/shells with /bin/fish ...
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1answer
912 views

Is there a way to “source” a sh script from the fish shell?

I like to put many of my environment variable definitions in the .profile script. If I am using a POSIX-compatible interactive shell like bash, I can use the source command to re-export the ...
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1answer
213 views

Can't start new fish session after incorrectly closing fish_config

I'm trying out fish (the friendly interactive shell), and tried out the browser-based config with fish_config. I didn't close this correctly. I hit ctrl-C in my shell. Now I see the error "The ...
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47 views

How to refer to absolute paths in fish?

I'm trying to get fish to recognize an absolute path, either when changing directories or when giving an input to a program. I'm used to typing an absolute path as "C:/..." but in fish the only way I ...
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1answer
319 views

“.” command doesn't work in fish

I'm using fish and I'm trying to activate a virtual env, so I tried "source" command which apparently is not available in fish. And I ended up with this link which says: ". (a single period) is an ...
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2answers
868 views

How to remove a path from $PATH variable in fish?

I am using fish as my shell in Debian and recently (after some upgrade) whenever I try to use command completion I have: set: No such file or directory set: Could not add component /usr/lib/x86_64-...
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438 views

My custom fish shell prompt keeps resetting every reboot

I switched to fish shell a month ago and I'm quite pleased with it. But recently, my custom prompt keeps resetting to the default prompt every time I turn on my PC. When opening the terminal, I'm ...
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1answer
165 views

Change prompt on command line?

My prompt is quite verbose - which is good most of the time - but now I would like to switch it temporarily because I want to make a screen shot of the terminal. For that purpose I would prefer not to ...
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1answer
93 views

How to pin information to the top of a terminal window on Mac OSX

I've seen demos where folks have had a Mac OSX terminal where the current time + username + directory are afixed (like 'freeze rows' in excel) to the top of the terminal window (not in the title bar), ...
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1answer
3k views

How can I setup fish shell prompt to be in a different color?

I've seen a screenshot of zsh configured to have prompt with a different color and background, and it looks like a very usable tweak:
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1answer
329 views

writing more complex math input to fish shell

The fish documentation explains that the math command is essentially a thin wrapper to bc. The bc documentation has further info about more complex ops: If bc is invoked with the -l option, a math ...
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1answer
554 views

How to do command substitution in fish shell?

How would a command like this have to be expressed in fish? ls -l $(which vim)
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1k views

Setting window title with iTerm and Fish

I want to set up a custom profile in iTerm2 that connects directly to a remote machine in tmux, with some custom SSH arguments. I have a fish function that does this, called "ss". When I have this ...
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1answer
499 views

How can I do string manipulation in fish shell

How can I do bash style string manipulations in Fish shell? Specifically, in bash read branch < ".git/HEAD" branch=${branch#ref: refs/heads/} will put the branch name in $branch variable. How ...
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1answer
43 views

How to sync fish's universal variables across different computers?

If you change some universal variables, how do you sync them across computers? The comments on the fishd.* files make it seem like a bad idea to sync those files. And fishd's man pages don't seem to ...
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What is the equivalent of bash's !$ and !! in the fish shell?

I've been using bash for a decade or so and have gotten used to being able to type !$ to repeat the last argument, e.g.: $ mkdir foo $ cd !$ cd foo (That last line is printed by the shell to tell ...
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2answers
365 views

Fish shell syntax highlighting looks weird in byobu-screen

When I am in plain fish shell, a command is highlighted like so: but when I am in byobu-screen and type the same thing, I get: When I do a fish_config and look at my color palette, nothing is ...
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501 views

How do I run make && make install while in fish shell

I have installed the fish shell, and I'm very happy with it ... but I cannot run the following command: make && make install This works nicely in bash... How do I run it in fish shell?