Hi everyone,
I’m not sure if this fits here, but I see it as documented feedback.
I really love the default .bashrc of Clear Linux. It’s pretty standard, but having the default Git branch name and error indication is really nice.
However, I enjoy using ligatured fonts, and GNOME Terminal doesn’t support ligatures. So, I use Kitty as my terminal.
This is where my issue started. After installing Kitty, I encountered this error:
bash: command substitution: line 4: syntax error near unexpected token `)'
bash: command substitution: line 4: ` fi ; host="${ORANGE}SOMETHING${WHITE}" ; dir="${BLUE}~${WHITE}" ; echo "${username}@${host}${dir}$(__git_ps1) ${endchar} " )'
After checking .bashrc and the various loaded files, I traced the error back to:
/usr/share/defaults/etc/profile.d/50-prompt.sh
At first, I tried rewriting the script in a simpler way, breaking it into multiple parts to pinpoint the exact issue. This worked for a while.
I had a similar problem when integrating Kitty as the default terminal launched when using “Open in Terminal” from the right-click menu in nautilus. It took me a while to figure out, and the solution was quite convoluted.
However, after running swupd repair , my installation broke again, and I lost all my modified scripts in the process.
Instead of going through the same process again, I used the DeepSeek Deepthink-R1 LLM. I don’t really care about the using a “LLM” in this context, it’s not the kind of programming or problem-solving I enjoy when I just want to use my system for coding.
That said, the solutions generated by the model were elegant and solved all my issues in no time. Since the scripts it produced are far cleaner than what I had written, I thought it might be interesting to share them here for anyone who might want (or need) a similar solution.
So here are the scripts.
For the default prompt :
50-prompt.sh :
if [ "$(expr $- : '.*i')" -ne 0 ]; then
if [ -e /usr/share/git-core/git-prompt.sh ]; then
. /usr/share/git-core/git-prompt.sh
fi
# For bash/sh
if [ -z "$ZSH_VERSION" ]; then
# Define colors
BLUE='\[\e[38;5;39m\]'
RED='\[\e[31m\]'
ORANGE='\[\e[38;5;208m\]'
WHITE='\[\e[0m\]'
PROMPT_COMMAND='__prompt_command'
__prompt_command() {
local EXIT="$?"
# Username color
if [ "$UID" = 0 ]; then
username="${RED}\u${WHITE}"
endchar_symbol="#"
else
username="${BLUE}\u${WHITE}"
endchar_symbol="\\$"
fi
# Host and directory
host="${ORANGE}\H${WHITE}"
dir="${BLUE}\w${WHITE}"
# Exit code color
if [ "$EXIT" -ne 0 ]; then
endchar="${RED}${endchar_symbol}${WHITE}"
else
endchar="${WHITE}${endchar_symbol}"
fi
# Git info
if [ "$(type -t __git_ps1)" = "function" ]; then
git_info="$(__git_ps1 " (%s)")"
else
git_info=""
fi
# Set PS1
PS1="${username}@${host} ${dir}${git_info} ${endchar} "
# Xterm title
if [[ "$TERM" =~ xterm.* ]]; then
echo -ne "\033]0;${USER}@${HOSTNAME%%.*} :: ${PWD/$HOME/~}\007"
fi
}
else
local _root_endch="%(?.#.%F{red}#%f)"
local _other_endch="%(?.$.%F{red}$%f)"
local _endchar="%(#.${_root_endch}.${_other_endch})"
local _username="%F{%(#.red.39)}%n%f"
local _host="%F{208}%m%f"
local _dir="%F{39}%~%f"
PS1="${_username}@${_host} ${_dir} ${_endchar} "
__stateless_title() {
[[ "$TERM" =~ xterm.* ]] && print -Pn "\e]2;%n\@%m :: %~\a"
}
__stateless_title
autoload -Uz add-zsh-hook
add-zsh-hook chpwd __stateless_title
fi
fi
For the nautilus integration:
kitty-wrapper.py :
#!/usr/bin/env python3
# Standard imports
import sys
import subprocess
from urllib.parse import urlparse, unquote
# DBus/GLib imports
import dbus
import dbus.service
from dbus.mainloop.glib import DBusGMainLoop
from gi.repository import GLib
# Set up logging for debugging
import logging
logging.basicConfig(
level=logging.DEBUG,
format="%(asctime)s - %(levelname)s - %(message)s",
stream=sys.stderr,
)
logger = logging.getLogger(__name__)
class KittyDBusService(dbus.service.Object):
def __init__(self):
try:
# Initialize DBus service
bus_name = dbus.service.BusName("org.gnome.Console", bus=dbus.SessionBus())
dbus.service.Object.__init__(self, bus_name, "/org/gnome/Console")
logger.info("Registered DBus service at org.gnome.Console")
except Exception as e:
logger.error(f"Failed to initialize DBus service: {str(e)}")
sys.exit(1)
@dbus.service.method(
"org.freedesktop.Application", in_signature="asa{sv}", sender_keyword="sender"
)
def Open(self, uris, options, sender=None):
try:
logger.debug(f"Received Open request with URIs: {uris}")
for uri in uris:
if uri.startswith("file://"):
parsed = urlparse(uri)
path = unquote(parsed.path)
logger.info(f"Launching kitty in directory: {path}")
subprocess.Popen(
["/usr/bin/kitty", "--directory", path],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
)
else:
logger.warning(f"Ignoring unsupported URI scheme: {uri}")
return dbus.Array(signature="o") # Empty array response
except Exception as e:
logger.error(f"Error handling Open request: {str(e)}")
raise dbus.exceptions.DBusException(
f"org.freedesktop.DBus.Error.Failed: {str(e)}"
)
if __name__ == "__main__":
try:
# Initialize DBus main loop
DBusGMainLoop(set_as_default=True)
logger.info("Initialized DBus GLib main loop")
# Create service instance
service = KittyDBusService()
logger.info("Service initialized. Waiting for requests...")
# Start main loop
loop = GLib.MainLoop()
loop.run()
except Exception as e:
logger.critical(f"Fatal error: {str(e)}")
sys.exit(1)
for the dbus service:
org.gnome.Console.service :
[D-BUS Service]
Name=org.gnome.Console
Exec=/usr/local/bin/kitty-wrapper
Comment=Kitty Terminal wrapper for GNOME Console
X-GNOME-Overrides=org.gnome.Console
And because a good install is one that I can reproduce easily (I’m thinking about you swupd repair)
The install script:
install-kitty-integration.sh :
#!/bin/bash
# Install Kitty-GNOME integration files
# Ensure script is run as root
if [ "$(id -u)" -ne 0 ]; then
echo "Please run this script as root using sudo"
exit 1
fi
# Get original user and display
ORIG_USER=$(logname)
DISPLAY=$(ps -u $ORIG_USER | awk '/Xorg/ {print $NF}')
# Install files as root
install -Dm644 50-prompt.sh \
/usr/share/defaults/etc/profile.d/50-prompt.sh
install -Dm755 kitty-wrapper.py \
/usr/local/bin/kitty-wrapper
install -Dm644 org.gnome.Console.service \
/usr/share/dbus-1/services/org.gnome.Console.service
# Run user-specific commands as original user
sudo -u $ORIG_USER sh -c "export DISPLAY=$DISPLAY XAUTHORITY=/home/$ORIG_USER/.Xauthority; \
nautilus -q && nautilus >/dev/null 2>&1 &"
sudo -u $ORIG_USER XDG_RUNTIME_DIR=/run/user/$(id -u $ORIG_USER) \
systemctl --user reload dbus
echo "Installation complete"
echo "You may need to:"
echo "- Wait 10-15 seconds for D-Bus services to reload"
echo "- Verify kitty is set as default terminal:"
echo " gsettings get org.gnome.desktop.default-applications.terminal exec"
Here it is, hope that could help.