I want to disable all color in my shell. Not ls, not nano, not vi, nothing. What's the best way to achieve this?
06 Answers
if you are using PUTTY to remotely access the shell, then:
- on the left panel, click Colors
- uncheck the three boxes on the right panel (they are checked by default)
unset LS_COLORS; export TERM=xterm should do it, or at least get you most of the way there. You may need to change that to say TERM=vt220 for some overly "smart" programs.
xterm -cmThis will start an xterm with no colors.
3I encountered the same problem while writing an SSH robot in Python (colors came out as jibberish when run through Visual Studio). The simplest solution was to open a new shell inside the other shell that was running.
shThis opened a fresh shell without any of my settings and all printouts was monochrome. It also reset the prompt which was a bonus for my intended purpose.
The best way is probably to tell your terminal emulator and environment that it cannot support colors in the first place:
cat << EOF >> ~/.bashrc
unset LS_COLORS
TERM=xterm-mono
export TERM
EOFmake a backup of .bashrc and then open .bashrc and remove all of these lines. this has the added benefit of disabling text colors in gedit!
# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in xterm|xterm-color|*-256color) color_prompt=yes;;
esac
# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes
if [ -n "$force_color_prompt" ]; then if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then # We have color support; assume it's compliant with Ecma-48 # (ISO/IEC-6429). (Lack of such support is extremely rare, and such # a case would tend to support setf rather than setaf.) color_prompt=yes else color_prompt= fi
fi
if [ "$color_prompt" = yes ]; then if [[ ${EUID} == 0 ]] ; then PS1='${debian_chroot:+($debian_chroot)}\[\033[01;31m\]\h\[\033[01;34m\] \W \$\[\033[00m\] ' else PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\] \[\033[01;34m\]\w \$\[\033[00m\] ' fi
else PS1='${debian_chroot:+($debian_chroot)}\u@\h \w \$ '
fi
unset color_prompt force_color_prompt
# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*) PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h \w\a\]$PS1" ;;
*) ;;
esac
# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)" alias ls='ls --color=auto' #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'
fi
