Is it possible to trace my shell(bash, fish, zsh)?-CodePudding

I am running archlinux(arcolinux distro to be specific) everything is fine but one little tiny problem which annoys me the problem is every time i open a terminal this pops us at the top of the terminal

"Linux pengu 5.15.25-1-lts x86_64 unknown"

I know this is a uname command with custom flags however I don't have that in my config.fish(I use fish shell(I run fish with bash i), I am aware that every time I open a my fish shell the stuff in my config.fish run, is there anything I am missing or what? here is my config.fish:

{

fish_vi_key_bindings
set VIRTUAL_ENV_DISABLE_PROMPT "1"
set -x MANPAGER "sh -c 'col -bx | bat -l man -p'"
## Export variable need for qt-theme
if type "qtile" >> /dev/null 2>&1
   set -x QT_QPA_PLATFORMTHEME "qt5ct"
end

# Set settings for https://github.com/franciscolourenco/done
set -U __done_min_cmd_duration 10000
set -U __done_notification_urgency_level low


## Environment setup
# Apply .profile: use this to put fish compatible .profile stuff in
if test -f ~/.fish_profile
  source ~/.fish_profile
end

# Add ~/.local/bin to PATH
if test -d ~/.local/bin
    if not contains -- ~/.local/bin $PATH
        set -p PATH ~/.local/bin
    end
end

# Add depot_tools to PATH
if test -d ~/Applications/depot_tools
    if not contains -- ~/Applications/depot_tools $PATH
        set -p PATH ~/Applications/depot_tools
    end
end

set -p PATH ~/.scripts
set -p PATH /home/omar/eclipse/java-2021-12/eclipse
set -p PATH ~/bin



## Starship prompt
if status --is-interactive
   source ("/usr/bin/starship" init fish --print-full-init | psub)
end

## Advanced command-not-found hook
#source /usr/share/doc/find-the-command/ftc.fish

## Functions
# Functions needed for !! and !$ https://github.com/oh-my-fish/plugin-bang-bang
function __history_previous_command
  switch (commandline -t)
  case "!"
    commandline -t $history[1]; commandline -f repaint
  case "*"
    commandline -i !
  end
end

function __history_previous_command_arguments
  switch (commandline -t)
  case "!"
    commandline -t ""
    commandline -f history-token-search-backward
  case "*"
    commandline -i '$'
  end
end

if [ "$fish_key_bindings" = fish_vi_key_bindings ];
  bind -Minsert ! __history_previous_command
  bind -Minsert '$' __history_previous_command_arguments
else
  bind ! __history_previous_command
  bind '$' __history_previous_command_arguments
end

# Fish command history
function history
    builtin history --show-time='%F %T '
end

function backup --argument filename
    cp $filename $filename.bak
end

# Copy DIR1 DIR2
function copy
    set count (count $argv | tr -d \n)
    if test "$count" = 2; and test -d "$argv[1]"
    set from (echo $argv[1] | trim-right /)
    set to (echo $argv[2])
        command cp -r $from $to
    else
        command cp $argv
    end
end

## Useful aliases
#Aliases to setbrightness
alias setbright1='xrandr --output HDMI-0 --brightness 1.00' #Sets the brightness to 1.00
alias setbright75='xrandr --output HDMI-0 --brightness 0.75' #Sets the brightness to 0.75
alias setbright50='xrandr --output HDMI-0 --brightness 0.50' #Sets the brightness to 0.50
alias setbright40='xrandr --output HDMI-0 --brightness 0.40' #Sets the brightness to 0.40
alias setbright30='xrandr --output HDMI-0 --brightness 0.30' #Sets the brightness to 0.30

# Replace ls with exa
alias ls='exa -al --color=always --group-directories-first --icons' # preferred listing
alias la='exa -a --color=always --group-directories-first --icons'  # all files and dirs
alias ll='exa -l --color=always --group-directories-first --icons'  # long format
alias lt='exa -aT --color=always --group-directories-first --icons' # tree listing
alias l.="exa -a | egrep '^\.'"                                     # show only dotfiles

# Aliases for quickly accessing config files(fish, bash, alacritty,etc..)
alias cf='vim ~/.config/fish/config.fish' # for quickly accessing fish config file
alias cb='vim .bashrc' # for quickly accessing bash config file
alias ca='vim ~/.config/alacritty/alacritty.yml' # for quickly acssesing alacritty config file
alias ck='vim ~/.config/kitty/kitty.conf'
alias cw='vim ~/.config/awesome/rc.lua'

# Replace some more things with better alternatives
alias cat='bat --style header --style rules --style snip --style changes --style header'
[ ! -x /usr/bin/yay ] && [ -x /usr/bin/paru ] && alias yay='paru'

#Media player utilities
alias pause='playerctl -p spotify pause'
alias play='playerctl -p spotify play'
# Common use
alias book='/home/omar/.scripts/books.sh'
alias poweroff='systemctl poweroff'
alias reboot='systemctl reboot'
alias grubup="sudo update-grub"
alias fixpacman="sudo rm /var/lib/pacman/db.lck"
alias tarnow='tar -acf '
alias untar='tar -zxvf '
alias wget='wget -c '
alias rmpkg="sudo pacman -Rdd"
alias psmem='ps auxf | sort -nr -k 4'
alias psmem10='ps auxf | sort -nr -k 4 | head -10'
alias upd='/usr/bin/update'
alias ..='cd ..'
alias ...='cd ../..'
alias ....='cd ../../..'
alias .....='cd ../../../..'
alias ......='cd ../../../../..'
alias dir='dir --color=auto'
alias vdir='vdir --color=auto'
alias grep='grep --color=auto'
alias fgrep='fgrep --color=auto'
alias egrep='egrep --color=auto'
alias hw='hwinfo --short'                                   # Hardware Info
alias big="expac -H M '%m\t%n' | sort -h | nl"              # Sort installed packages according to size in MB
alias gitpkg='pacman -Q | grep -i "\-git" | wc -l'          # List amount of -git packages

# Get fastest mirrors
alias mirror="sudo reflector -f 30 -l 30 --number 10 --verbose --save /etc/pacman.d/mirrorlist"
alias mirrord="sudo reflector --latest 50 --number 20 --sort delay --save /etc/pacman.d/mirrorlist"
alias mirrors="sudo reflector --latest 50 --number 20 --sort score --save /etc/pacman.d/mirrorlist"
alias mirrora="sudo reflector --latest 50 --number 20 --sort age --save /etc/pacman.d/mirrorlist"

# Help people new to Arch
alias apt='man pacman'
alias apt-get='man pacman'
alias please='sudo'
alias tb='nc termbin.com 9999'

# Cleanup orphaned packages
alias cleanup='sudo pacman -Rns (pacman -Qtdq)'

# Get the error messages from journalctl
alias jctl="journalctl -p 3 -xb"

# Recent installed packages
alias rip="expac --timefmt='%Y-%m-%d %T' '%l\t%n %v' | sort | tail -200 | nl"

#Cool terminal stuff(pipes, convo, etc...)
alias pipes='cd pipes.sh;./pipes.sh';cd 

## Run paleofetch if session is interactive
#if status --is-interactive
    #colorscript random
#end

}

I tried to debug the problem by calling something like strace on my fish shell but it just restarts my fish shell, I also wrote a little script where i made a while loop and excuted this command: ps -ax | grep uname; sleep 0.1 which should give me any instanced of the uname command and kept running my fish shell over and over but there was no uname instances I am really puzzled with this

CodePudding user response：

strace can attach to a process using -p:

-p pid         trace process with process id PID, may be repeated

this way you would be able to attach to your running process.

You may also find useful

  -f             follow forks
  -ff            follow forks with output into separate files

if you attach to the parent process.

CodePudding user response：

You can ask fish to output the commands it runs by setting the fish_trace variable. Example:

fish_trace=1 fish

this is mentioned in the docs around debugging fish.

CodePudding user response：

I figured it out though without tracing the fish shell syscalls or something like that I realized that I am using oh-my-fish plugin or framework and it is loading a theme which displayed the unwanted message, thanks for the tips though I at least now know how to trace the fish shell