Where I can find the contents of the default /etc/bash.bashrc file?

I accidentally overwrote the /etc/bash.bashrc file.

Please give me the default content in that file to restore, or the file itself.

Solution 1:

If you overwrote your bash the best way is to copy it again from your system itself instead of someone else:

rm ~/.bashrc
cp /etc/skel/.bashrc ~/

Solution 2:

My /etc/bash.bashrc file is the following:

# System-wide .bashrc file for interactive bash(1) shells.

# To enable the settings / commands in this file for login shells as well,
# this file has to be sourced in /etc/profile.

# If not running interactively, don't do anything
[ -z "$PS1" ] && return

# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize

# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# set a fancy prompt (non-color, overwrite the one in /etc/profile)
PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '

# Commented out, don't overwrite xterm -T "title" -n "icontitle" by default.
# If this is an xterm set the title to user@host:dir
#case "$TERM" in
#xterm*|rxvt*)
#    PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME}: ${PWD}\007"'
#    ;;
#*)
#    ;;
#esac

# enable bash completion in interactive shells
#if [ -f /etc/bash_completion ] && ! shopt -oq posix; then
#    . /etc/bash_completion
#fi

# sudo hint
if [ ! -e "$HOME/.sudo_as_admin_successful" ]; then
    case " $(groups) " in *\ admin\ *)
    if [ -x /usr/bin/sudo ]; then
    cat <<-EOF
    To run a command as administrator (user "root"), use "sudo <command>".
    See "man sudo_root" for details.

    EOF
    fi
    esac
fi

# if the command-not-found package is installed, use it
if [ -x /usr/lib/command-not-found -o -x /usr/share/command-not-found ]; then
    function command_not_found_handle {
            # check because c-n-f could've been removed in the meantime
                if [ -x /usr/lib/command-not-found ]; then
           /usr/bin/python /usr/lib/command-not-found -- $1
                   return $?
                elif [ -x /usr/share/command-not-found ]; then
           /usr/bin/python /usr/share/command-not-found -- $1
                   return $?
        else
           return 127
        fi
    }
fi

However, you could also just boot from a live CD and copy the live CD file onto your hard-disc i.e.

sudo mkdir /mnt/tempmount
sudo mount -t ext4 /dev/sda1 /mnt/tempmount
sudo cp /etc/bash.bashrc /mnt/tempmount/etc/bash.bashrc

Change /dev/sda1 for whatever partition your ubuntu is installed on.

Solution 3:

Get it from the Bash package

1. Download the Bash package:

   apt-get download bash
   

   Or manually download it from https://packages.ubuntu.com/bionic/amd64/bash/download

   • For other Ubuntu versions, swap out "bionic" for your version name.
2. Browse the .deb file using Archive Manager
3. Extract /etc/bash.bashrc
   • You can also find ~/.bashrc under /etc/skel/.bashrc.

Source: arrange's comment