Questions tagged [fish]
Fish is a unix shell with a clean design and a limited but powerful feature set.
162
questions
1
vote
1answer
18 views
How to use hjkl to navigate menu select in fish shell
I can't seem to find any information on how to navigate tab completion or how to bind keys in tab completion in fish shell.
This is what I am trying to achieve but in fish shell rather than zsh. Fish-...
0
votes
0answers
45 views
How to get output one page at a time in Fish shell? [duplicate]
I am using a Fish shell and when I search through file with grep, I usually get a long output, which is difficult to further search through. If I use something like this grep -r 'email' . | less, I ...
0
votes
2answers
56 views
How to change shell without the command line
Something broke my fish and I have no idea how to fix it so is there a way to change shell to zsh without using the command line
2
votes
0answers
49 views
Memory usage out-of-control with shell command, but not with shell script
[Linux Mint 20.1, 16GB RAM, 16GB swap]
I recently converted my system - root and backup partitions - to BTRFS. I've been experimenting with archiving some of root's snapshots to my backup drive, but ...
1
vote
0answers
37 views
urxvt writing over itself and leaving colored spaces
URXVT is writing over itself and leaving behind colored spaces... I feel like this is easier shown than described:
This started occurring overnight without making any changes, so I'm not sure where ...
1
vote
1answer
32 views
How to write a command to history in fish shell?
In the zsh shell, I can write something into the command line history like so:
#!/bin/zsh
cmd="cd /special/dir"
print -s $cmd" # save command in history for reuse
How may I do ...
2
votes
0answers
68 views
Ranger image preview not working in URXVT running Fish shell until I open an image in Feh
I recently started using the Fish shell, and after opening a new URXVT instance I cannot get image previews in Ranger until I open an image first (using feh, in my case). Once an image has been opened ...
0
votes
1answer
381 views
Error in terminal emulator: Alacritty
I installed Garuda Linux today. The default shell emulator is Alacritty and the default shell, fish. However, after the update to the system, its constantly giving a warning:
Config error: shell: data ...
2
votes
1answer
50 views
Is it possible to disable the & ampersand character in fish shell? (make escaping with \& unnecessary)
So it is possible to permanently disable the functionality of ?, making \? unnecessary, by enabling the qmark-noglob feature flag.
I would like to do the same thing for &, as I never use it for ...
-1
votes
1answer
48 views
How to set environmental variables in Fish?
Guys I recently switched to fish from Bash and I've run into problems setting some specific variables for golang in fish.
In my bashrc I would set them using:
export PATH="$PATH:$(go env GOPATH)/...
1
vote
1answer
359 views
Fish: The file is not executable by this user
I made fish function in ~/.config/fish/functions/confgit.fish:
function confgit
/home/john/Projects/confgit $argv
end
But when I run this function it just says:
fish: The file “/home/john/...
5
votes
1answer
168 views
xargs | Use input as command
I would have assumed that following examples work perfectly fine.
$ which -a python python3 pip | xargs -I {} {} --version
No '{}' such file or folder
$ which -a python python3 pip | xargs -I _ _ --...
1
vote
2answers
40 views
test standard output with fish
I have a script that prints a string to terminal,
and I want to check value of myScript output.(in this case resultString)
I tried with this method, but it didn't worked.
(for simplicty i replaced my ...
1
vote
1answer
53 views
Resume n jobs to background concurrently
I have many paused jobs in my shell. I would like to run bg for all of the jobs with a maximum four jobs running concurrently.
I know I can use GNU parallel for new tasks but I would like a BASH or ...
0
votes
2answers
84 views
run for loop with bash command in fish shell
I'm trying to run a simple command on my fish shell, but I am not able to execute. It just keeps adding lines for me to add additional data to, not sure on how to execute accordingly.
$ for acc in `...
0
votes
1answer
225 views
How to fix Error: Whenever I type something in terminal there is an error
I use fish as my login terminal. I was trying to run android simulator. I already edited my bash profile so I switched to bash by typing bash. I restarted my terminal after I logged off my computer ...
2
votes
1answer
167 views
Bash's Process Substitution “<(command)” equivalent in fish shell
In bash, I usually do grep -f <(command) ... (I pick grep just for example) to mimic a file input.
What is the equivalent in fish shell? I cannot find it in the documentation.
0
votes
1answer
36 views
How to lock my session as soon as I login?
I'm on Manjaro Gnome (using fish) and I want to enable Automatic Login and then force the session to lock. The idea being that I can boot and walk away from my computer, knowing that it will continue ...
0
votes
1answer
41 views
How can I get numbers in fish history
I'm using fish shell but the history command in this returns something like
ls
cd Downloads
ls
mkdir new_folder
whereas, the same thing in zsh would return
399 ls
400 cd Downloads
401 ls
402 mkdir ...
0
votes
2answers
56 views
Get count of occurrences of each word in document
How can I find count of every word in a file?
I want a histogram of each word in text pipe or document. New line and empty lines will exist in document. I stripped everything except for [a-zA-Z].
> ...
1
vote
1answer
266 views
fish shell : capture multi-line output to a variable with piping or read
if you
curl https://www.toptal.com/developers/gitignore/api/python
you see the file as expected, with newlines. But if I
set response (curl https://www.toptal.com/developers/gitignore/api/python)
...
1
vote
1answer
16 views
fish alternatives for [[ pattern tests ]]
Trying fish, I am stuck on some bash conditionals using [[ ... ]].
It looks like [ ... ] is the usual thing, but I'm stuck on pattern and regular expression tests:
[[ "$PATH" =~ "$1&...
1
vote
1answer
51 views
fish equivalent of ${this:-that} expansion and similar
Trying fish, I am stuck on equivalents for some of the variable expansions from bash:
x=${this:-$that}
x=${this:-that}
How do I do that in fish?
4
votes
1answer
111 views
kill %1 equivalent in fish
In bash, if I run kill %1, it kills a backgrounded command in the current shell (the most recent one, I believe).
Is there an equivalent of this in fish? I haven't been able to find it online in a bit ...
1
vote
0answers
149 views
Set permanent environment variable for all shells
I want to set the root level environment variable that comes from sh(1) so that it is shared across all shells: sh, bash, zsh, and fish.
I can see in /etc/profile there's a command /usr/libexec/...
1
vote
1answer
384 views
Error starting the fish_config web ui in WSL
I want to customize my fish shell using the Web UI mode, but when running fish_config colors, the following error is shown.
surface@Surface ~> fish_config starting-colors
Web config started at file:...
2
votes
2answers
260 views
check if variable is null in fish
I want to check a condition if a variable is null in fish(friendly interactive shell).
if test "$argv" = null
# do something...
else
# do something else...
0
votes
2answers
106 views
Stop fish complaining: fish: $? is not the exit status. In fish, please use $status
I am building a script that should work in csh, bash, and fish with no change:
This does the right thing in all the shells,
perl -e '$bash=shift;$csh=shift;for(@ARGV){unlink;rmdir;}if($bash=~s/h//){...
1
vote
1answer
35 views
How to put the time string into the fish shell's prompt?
Currently I use this theme for fish, installed using fisher.
This is how it shows up now:
I would like the time string (e.g. 19:19) to be shown before the /m or after react or after the part with ...
3
votes
1answer
97 views
Terminal fish prompt blank
So I'm trying to change my fish shell terminal prompt but every time I change anything too complicated (beyond colour changes and rearranging the prompt), it just turns up blank.
I'm running Arch ...
2
votes
1answer
574 views
How can I make xfce4-terminal start fish shell?
I want to use FISH shell. But I've read FISH is not a POSIX shell so setting it to default shell by chsh is not recommended. What I want is whenever I start xfce4-terminal I would like to start FISH ...
0
votes
3answers
380 views
TMUX and terminal colors are not the same locally and over ssh
I have a bunch of dotfiles that allow me to have a pretty theme on my terminal and tmux on my local host. I use kitty, fish and tmux. To properly define colors and have a global coherence, I use the ...
0
votes
1answer
65 views
Enabling fish-style manpage-based completion in bash
One of the really appealing features of fish is that it supports intelligent tab completion of options based on their specifications in each command's respective manpage. Has anyone created a way to ...
0
votes
0answers
36 views
Fish shell error
When I type command in fish shell, after command it returns: Could not send own process 401, 'sed' in job 3, 'commandline | sed 's|\s\+|\x1e|g'' from group 400 to group 400 setpgid: unknown error (...
2
votes
1answer
47 views
fish equivalent for sequence of commands — { cmd1 ; cmd2; }
In bash, you can pipe the same output to two commands using {}, i.e. in the following:
cmd0 | { cmd1 ; cmd2 ;} | cmd3
cmd1 and cmd2 get the output of cmd0 in their stdin, and cmd3 gets the output of ...
2
votes
1answer
196 views
Fish shell, disable pager navigation through Tab / Shift Tab
Fish is a great shell (the best?) but its completion interface has a particular quirk that I personally don't like and would like to disable. It's expressed by this sentence in the tutorial:
Hit ...
0
votes
0answers
50 views
I'm not able to figure out why fish-shell is not able to read my scripts directory from $PATH
After my failed attempt to unify my bash and fish configuration, I have finally separated both and 'hoping' that things should be fine now.
As per the suggestions I received (against trying to re-use ...
1
vote
2answers
422 views
Starting Fish terminal from bashrc breaks standard terminal input
I've added a command to start fish terminal from bashrc and so far it was working ok.
I've just added this line at the end of bashrc
fish
But after I quit fish to default shell current input isn't ...
0
votes
4answers
711 views
sed replace newline character with space
How can I use sed to replace new line character with any other character?
Input:
I cannot conceive that anybody will
require multiplications at the rate of
40,000 or even 4,000 per hour ... ...
0
votes
1answer
166 views
Permission denied in fish shell on Debian when I edited the oh-my-fish “theme” file
I edited the "theme" file to display "bobthefish" instead of "default" using Windows.
<W> fish: An error occurred while redirecting file “/home/purplesci/.config/omf/theme”
open: Permission ...
0
votes
0answers
58 views
Symbols showing on blue background in Debian with oh-my-fish on WSL
I am using fish-shell on Debian with oh-my-fish installed. When I run the shell, it shows the prompt not on the black bckground, but on the light blue instead.
This is running in Windows Terminal ...
1
vote
0answers
915 views
Unable to execute bash scripts from within fish-shell
I have a collection of bash scripts that I have added to the PATH so that I can execute them from anywhere.
export PATH=$PATH:~/<path>/<to>/<scripts>
so along with
./<path>/&...
0
votes
1answer
423 views
Set default interpreter in fish shell
I've installed mill on arch linux with fish as my default shell. Since the file /usr/bin/mill doesn't start with a shebang, fish won't execute the file. Instead it responds with
$ mill
Failed to ...
1
vote
1answer
385 views
Automatically print number of lines of command line output
In my fish shell, I am using fish command timer to automatically show the duration of each command after it has been executed. This is a neat feature, which I recommend.
Now I want something similar ...
3
votes
0answers
35 views
Tracing environment variable modification
Pesky $PATH, there's one item I used to use ~/.workspace/bin. I just can't figure where its coming from. I changed the user shell to /bin/sh, and logged in from tty, checked PATH, and it was clear of ...
3
votes
2answers
221 views
Issue with type force PATH search
This is Bash. The behavior is similar in fish.
$ which python
/usr/bin/python
$ alias py=python
$ type py
py is aliased to `python'
And then, running type -P py prints nothing, where as I expected ...
1
vote
2answers
751 views
How to install fish in a remote server I cannot sudo?
I want to install the fish shell in a remote server I have no sudo privileges at, so that I can use it whenever I ssh.
2
votes
1answer
887 views
Does one string contain another in fish shell?
I am working on my fish.config for using the fish shell.
I am trying to compare strings using bash syntax but fish doesn't accept the syntax. There is clearly another way to do it. Any suggestions ...
7
votes
3answers
5k views
fish shell : exec format error
On an Ubuntu ($ uname -a : Linux kumanaku 4.15.0-43-generic #46-Ubuntu SMP Thu Dec 6 14:45:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux), I just installed fish ($ fish --version : fish, version 2.7.1) ...
3
votes
2answers
1k views
How to use fish on remote servers that have it installed without changing login shell?
I regularly ssh on several different servers, some of which don't have fish installed, but many do. I'd like to get fish as shell if available (changing midway is always tedious, and you lose the ...
