/etc/profile.d/bash_completion.sh is in bash-completion 1:1.3-1ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 | # Check for interactive bash and that we haven't already been sourced.
[ -z "$BASH_VERSION" -o -z "$PS1" -o -n "$BASH_COMPLETION" ] && return
# Check for recent enough version of bash.
bash=${BASH_VERSION%.*}; bmajor=${bash%.*}; bminor=${bash#*.}
if [ $bmajor -gt 3 ] || [ $bmajor -eq 3 -a $bminor -ge 2 ]; then
if shopt -q progcomp && [ -r /etc/bash_completion ]; then
# Source completion code.
. /etc/bash_completion
fi
fi
unset bash bmajor bminor
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