rename dot-files to non-dot, move pdf viewer to .bashrc.br
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286
config/home/bashrc.br
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286
config/home/bashrc.br
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#!/usr/bin/env bash
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#
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# ~/.bashrc.br - user specific initialization
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#
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# (C) Bruno Raoult ("br"), 2001-2024
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# Licensed under the GNU General Public License v3.0 or later.
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# Some rights reserved. See COPYING.
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#
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# You should have received a copy of the GNU General Public License along with this
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# program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
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#
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# SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
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#
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# Usage: to be invoked from .bashrc.
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# i.e., add at the end of .bashrc:
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# [ -f "$HOME/.bashrc.$USER" ] && . "$HOME/.bashrc.$USER"
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#
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# Debian default ~/.profile does:
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# 1) source .bashrc if it exists
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# 2) add "$HOME"/bin in PATH
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# This imply a duplicate "$HOME/bin" in PATH, as we do everything here.
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# Better to have a ~/.bash_profile with the lines above.
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# _var_del() - remove an element from a colon-separated list.
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# $1: name (reference) of a colon separated list
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# $2: element to remove (string)
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#
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# _var_del() removes every occurrence of $2, if there are more than 1,
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# and leaves $1 unchanged if $2 is not present.
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#
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# Example:
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# With VAR's value being "foo:bar:quax:bar". Using "_var_del VAR bar" will
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# leave VAR with the value "foo:quax".
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_var_del() {
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local -n _p_del=$1
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local _l=":$_p_del:"
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while [[ $_l =~ :$2: ]]; do
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_l=${_l//:$2:/:}
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done
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_l=${_l%:}
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_l=${_l#:}
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_p_del="$_l"
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}
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# _var_prepend() - prepend element to colon-separated variable.
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# $1: variable name (reference)
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# $2: element to add (string)
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#
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# Any occurrence of $2 in $1 is first removed, then $2 is added at $1 beginning.
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#
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# Example:
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# With VAR's value being "foo:bar:quax:bar". Using "_var_prepend VAR bar"
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# will leave VAR with the value "bar:foo:quax".
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_var_prepend() {
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local -n _p_prepend=$1
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_var_del _p_prepend "$2"
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[[ -z $_p_prepend ]] && _p_prepend="$2" && return
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_p_prepend="$2:$_p_prepend"
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}
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# _var_append() - append element to colon-separated variable.
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# $1: variable name (reference)
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# $2: element to add (string)
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#
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# Any occurrence of $2 in $1 is first removed, then $2 is added at $1 end.
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#
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# Example:
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# With VAR's value being "foo:bar:quax:bar". Using "_var_append VAR bar"
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# will leave VAR with the value "foo:quax:bar".
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_var_append() {
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local -n _p_append=$1
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_var_del _p_append "$2"
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[[ -z $_p_append ]] && _p_append="$2" && return
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_p_append="$_p_append:$2"
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}
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# adjust PATH. Below paths will be added at beginning.
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_lpath=("$HOME/bin/$(uname -s)-$(uname -m)"
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"$HOME/bin"
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#"$HOME/.cargo/bin"
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"/usr/local/bin")
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# loop array in reverse order. Note: We do not test for path existence and add it
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# unconditionally, to avoid automounter interference.
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for (( _i = ${#_lpath[@]} - 1; _i >= 0; --_i )); do
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_var_prepend PATH "${_lpath[_i]}"
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done
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unset _lpath
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# why is it in default Ubuntu path ?
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_var_del PATH /snap/bin
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# enable core file
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ulimit -Sc 102400 # in 1024 bytes, 100Mb
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# ... and set PAGER to less (for man(1) and others)
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if hash less 2>/dev/null; then
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export PAGER=less
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# do not clear screen after "less", exit immediately if one page only
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export LESS="-XFB"
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# ... and just alias more... to less ;-)
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alias more=less
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fi
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# no output split for dc and bc / make bc silent
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export DC_LINE_LENGTH=0
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export BC_LINE_LENGTH=0
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export BC_ENV_ARGS=--quiet
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# both ubuntu and debian assume we want colors if TERM contains "color"
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# this is surely not true, as TERM is often forced by terminal emulator
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# shellcheck disable=SC2154
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PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
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case "$TERM" in
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xterm*|rxvt*)
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PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
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;;
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*)
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;;
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esac
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# trim prompt path
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export PROMPT_DIRTRIM=3
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# find a suitable editor
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e() {
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$VISUAL "$@"
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}
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export -f e
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if hash emacs 2>/dev/null; then
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# uncomment below to use full emacs
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#export EDITOR=emacs
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# ... OR: uncomment below to use emacsclient
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#export ALTERNATE_EDITOR="/usr/bin/emacs"
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#export EDITOR="emacs.sh"
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#alias emacs="emacs.sh"
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export ALTERNATE_EDITOR=""
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export VISUAL="emacsclient -c"
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alias emacs="emacsclient -c"
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#alias crontab="VISUAL=emacsclient crontab -e"
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#alias crontab="emacs-crontab.sh"
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else
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# emacs clones, then vim/vi, then... whatever left.
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_VISUALS=(zile jed mg e3em vim vi nano ed)
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for e in "${_VISUALS[@]}"; do
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if hash "$e" 2>/dev/null; then
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export VISUAL="$e"
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break
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fi
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done
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unset _VISUALS
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fi
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export EDITOR=$VISUAL
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# look for a pdf viewer
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for _pdfviewer in qpdfview atril; do
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if hash "$_pdfviewer" 2>/dev/null; then
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alias acroread="$_pdfviewer"
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break
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fi
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done
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unset _pdfviewer
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# append to the history file, don't overwrite it
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shopt -s histappend
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# write history after each command
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export PROMPT_COMMAND="history -a"
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# Add timestamp in history
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export HISTTIMEFORMAT="%d/%m %H:%M "
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# ignore history dups, delete all previous dups
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export HISTCONTROL="ignorespace:ignoredups:erasedups"
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# ignore these in history
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export HISTIGNORE="history *:h:hl:hll:hlll"
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# history size
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HISTSIZE=5000
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HISTFILESIZE=5000
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# remove new stupid Debian "ls" quoting, and colors...
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# Many complains, one of them:
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# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=813164#226
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export QUOTING_STYLE=literal
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[[ -v BASH_ALIASES[ls] ]] && unalias ls
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# avoid these stupid systemd defaults (horizontal scroll and pager)
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alias systemctl="systemctl --no-pager --full"
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# aliases for ls and history
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alias l='ls -F'
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alias ls='ls -F'
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alias l1='ls -1F'
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alias la='ls -AF'
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alias ll='ls -lF'
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alias lla='ls -lAF'
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alias ldl='ls -l | grep ^d'
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[[ -v BASH_ALIASES[lrt] ]] && unalias lrt
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lrt() {
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local -i _l=20
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if (( $# > 0 )) && [[ $1 =~ [[:digit:]]+ ]]; then
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_l="$1"
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shift
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fi
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# shellcheck disable=2012
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ls -lrt "${1:-.}" | tail -"$_l"
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}
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[[ -v BASH_ALIASES[lart] ]] && unalias lart
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lart() {
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local -i _l=20
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if (( $# > 0 )) && [[ $1 =~ [[:digit:]]+ ]]; then
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_l="$1"
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shift
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fi
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# shellcheck disable=2012
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ls -laFrt "${1:-.}" | tail -"$_l"
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}
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alias h="history 10" # short
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alias hl="history 25" # long
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alias hll="history 100" # very long
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alias hlll="history" # all history
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# user temp directory
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export USERTMP=~/tmp
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# misc aliases
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alias fuck='sudo $(history -p \!\!)'
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alias diff='diff -u'
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# fdiff() - compare two files with same name
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# parameters:
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# $1: first file
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# $2: second file directory
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#
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# fdiff will compare (diff) $1 with a file of basename $1 in $2 directory.
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# Examples:
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# % fdiff .bashrc ~ # compare .bashrc with ~/.bashrc
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# % fdiff /tmp/.bashrc /home/br/ # compare /tmp/.bashrc with /home/br/.bashrc
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fdiff () {
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local file1="$1" # file to compare
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local file2="$2/${file1##*/}" # file2 with path
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diff "$file1" "$file2"
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}
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# I am used to rehash...
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# rehash - manage bash's remembered commands paths
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# $1...: Only forget those commands
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rehash() {
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if (($#)); then
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hash -d "$@"
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else
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hash -r
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fi
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}
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# french-> english and english->french translation
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alias trans="trans.sh"
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alias rtrans="trans.sh -fen -tfr"
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# easy directory sync (remove source trailing slash)
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syncdir() {
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local -a opts=(--archive --hard-links --one-file-system --itemize-changes --delete)
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local src="$1" dst="$2"
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case "$src" in
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*[!/]*/)
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src=${src%"${src##*[!/]}"};;
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*[/])
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src="/";;
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esac
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rsync "${opts[@]}" "$src" "$dst"
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}
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# host specific initialization
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# shellcheck disable=SC1090
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[ -f "$HOME/.bashrc.$USER.$(hostname)" ] && . "$HOME/.bashrc.$USER.$(hostname)"
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# Indent style for emacs
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# Local Variables:
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# mode: shell-script
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# sh-basic-offset: 4
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# sh-indentation: 4
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# indent-tabs-mode: nil
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# End:
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