X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=bashrc;h=178504ec8ce9b7254693a5b5a015b94f9906c1a6;hb=784249066ea9199db8b8a31778decc8738c7ef51;hp=cca943d8ecb89e55cbfda9cbde15c81827074c69;hpb=f178ad4d130439b1b63e90871bfbb571cadb02f8;p=scripts.git

diff --git a/bashrc b/bashrc
index cca943d..178504e 100644
--- a/bashrc
+++ b/bashrc
@@ -48,7 +48,11 @@ shopt -s histappend
 # interactive mode. This should maybe be done more properly through
 # using different .bash_profile and .bash_login
 
-[[ ${TERM} == "dumb" ]] || [ ! -t 0 ] && return
+[ ${TERM} == "dumb" ] || [[ ! -t 0 ]] && return
+
+# Remove the annoying beeps in console
+
+setterm -blength 0
 
 ######################################################################
 ## The interactive part
@@ -96,43 +100,53 @@ ulimit -c unlimited
 
 alias ..='cd ..'
 alias -- -='cd -'
-alias rm='rm -i'
-alias mv='mv -i'
-# alias chmod='chmod -v'
+alias rm='rm -v -i'
+alias mv='mv -v -i'
 alias chmod='chmod -c'
-alias cp='cp -i'
+alias cp='cp -v -i'
 alias rd=rmdir
-alias md='mkdir -v'
+alias md='mkdir -pv'
 alias ps='ps uxaf'
-alias df='df -hT --sync'
-alias grep='grep -i -E --mmap --color=auto'
+alias df='df -hT'
+# alias df='df -hT --sync'
+alias grep='grep -i -E --color=auto'
 alias find='ionice -c3 find'
 alias pd=pushd
 alias val='valgrind --leak-check=full --show-reachable=yes --db-attach=yes '
 
 alias s='screen -d -R -U && clear'
 
-# alias kj="keyjnote -s -D 1000 -t Crossfade -T 100"
-alias impressive="impressive -s -D 1000 -t Crossfade -T 100"
+function nh () {
+    export HISTFILE=/dev/null
+    unalias cd
+}
 
-# alias fdupes='fdupes -r .'
+function ding () {
+    if [[ $1 ]] && which winshepherd.sh; then
+        play -q ~/local/sounds/deskbell.wav &
+        unset E_APP_WINDOW
+        winshepherd.sh message green "$1"
+    else
+        play -q ~/local/sounds/deskbell.wav
+    fi
+}
 
-# ls colors
+alias impressive="impressive -s -D 1000 -t Crossfade -T 100"
 
-if [ -e "${HOME}/.dircolors" ]; then
+if [[ -e "${HOME}/.dircolors" ]]; then
     eval $(dircolors "${HOME}/.dircolors")
-    alias ls='ls --group-directories-first --color'
-    alias lt='ls --color -gohtr --time-style="+%Y %b %d %H:%M"'
-    alias ll='ls --color -goh --time-style="+%Y %b %d %H:%M"'
-    alias lll='ls --color -lth'
-    alias l='ls --color -I "*~" -I "*.o"'
+    alias ls='ls -p --group-directories-first --color'
+    alias lt='ls -p --color -gohtr --time-style="+%Y %b %d %H:%M"'
+    alias ll='ls -p --color -goh --time-style="+%Y %b %d %H:%M"'
+    alias lll='ls -p --color -lth'
+    alias l='ls -p --color -I "*~" -I "*.o"'
     alias less='less -R'
 else
-    alias ls='ls --group-directories-first'
-    alias lt='ls -gohtr --time-style="+%Y %b %d %H:%M"'
-    alias ll='ls -goh --time-style="+%Y %b %d %H:%M"'
-    alias lll='ls -lth'
-    alias l='ls -I "*~" -I "*.o"'
+    alias ls='ls -p --group-directories-first'
+    alias lt='ls -p -gohtr --time-style="+%Y %b %d %H:%M"'
+    alias ll='ls -p -goh --time-style="+%Y %b %d %H:%M"'
+    alias lll='ls -p -lth'
+    alias l='ls -p -I "*~" -I "*.o"'
 fi
 
 export EDITOR=emacsclient
@@ -143,9 +157,72 @@ export GIT_EDITOR=${EDITOR}
 
 # export FIGNORE="CVS"
 
+function latexdiff () {
+    wdiff -n \
+        -w $'\033[30;41m' -x $'\033[0m' \
+        -y $'\033[30;42m' -z $'\033[0m' \
+        $*
+}
+
+# Looks for the most recent .log and pdflatex + bibtex the
+# corresponding tex file
+
+function rl () {
+    RECENT_LOG=$(ls -t $(find -maxdepth 1 -name "*.log" -type f) | head -1)
+
+    if [[ ${RECENT_LOG} ]]; then
+        FILEBASE="${RECENT_LOG/.log/}"
+
+        if [[ -f "${FILEBASE}.tex" ]]; then
+
+            pdflatex "${FILEBASE}"
+            bibtex "${FILEBASE}"
+            pdflatex "${FILEBASE}"
+            pdflatex "${FILEBASE}"
+
+            if [[ "$1" ]]; then
+                if [[ "$1" == "-v" ]] || [[ "$1" == "--view" ]]; then
+                    xpdf "${FILEBASE}.pdf"
+                elif [[ "$1" == "-p" ]] || [[ "$1" == "--print" ]]; then
+                    lpr "${FILEBASE}.pdf"
+                else
+                    echo "Usage: rl [-v|--view] [-p|--print]" >&2
+                    echo "Unknown option $1" >&2
+                    return 1
+                fi
+            fi
+
+        else
+
+            echo "Can not find a tex file corresponding to the most recent log (${RECENT_LOG/.log/})." >&2
+            return 1
+
+        fi
+
+    else
+        echo "Can not find a recent log." >&2
+        return 1
+    fi
+}
+
+
 ######################################################################
 # Functions
 
+# http://www.reddit.com/r/linux/comments/2cgu5k/a_handy_little_script_for_interacting_with_your/
+function clip () {
+    if [[ -t 0 ]] && [[ -z "$1" ]]; then
+        # output contents of clipboard
+        xclip -out -selection clipboard || exit 1
+    elif [[ "$1" ]]; then
+        # copy file contents to clipboard
+        xclip -in -selection clipboard < "$1" || exit 1
+    else
+        # copy stdin to clipboard
+        xclip -in -selection clipboard <&0 || exit 1
+    fi
+}
+
 # Find a file whose name contains a substring
 
 function fn () {
@@ -161,17 +238,26 @@ function bak () {
     done
 }
 
+# Password generator
+
+function pwgen () {
+    tr -dc A-Za-z0-9 < /dev/urandom | head -c16
+    echo
+}
+
 function ua () {
+
+    [[ "$1" ]] || ( echo "Universal unarchive: ua <file> [<file> ...]" >&2 && return 1)
+
     while [[ "$1" ]]; do
 
         case "$1" in
-
-            *.tgz|*.tar.gz)
-                tar zxvf "$1"
+            *.tgz|*.tar.gz|*.tbz|*.tar.bz2)
+                tar xvf "$1"
                 ;;
 
             *.rar)
-                unrar x "$1"
+                unrar -kb x "$1"
                 ;;
 
             *.zip)
@@ -222,7 +308,15 @@ function cdt () {
             return 1
         fi
     else
-        cd $(mktemp -d /tmp/tmp.XXXXXX)
+        dir=$(mktemp -d /tmp/tmp.XXXXXX)
+        link=/tmp/tmp
+        if [[ -h ${link} ]]; then
+            \rm ${link}
+        fi
+        if [[ ! -a ${link} ]]; then
+            ln -s ${dir} ${link}
+        fi
+        cd ${dir}
     fi
 }
 
@@ -230,57 +324,16 @@ alias t='cd /tmp'
 
 function trash () {
     TRASH=$(date +/tmp/trash-%Y-%b-%d-%Hh)
+    LINK=/tmp/trash
 
-    if [[ -d ${TRASH} ]]; then
-        echo "Re-use ${TRASH}"
-    else
-        mkdir ${TRASH}
-        echo "Created ${TRASH}"
-    fi
-
-    mv "$@" ${TRASH}
-    echo "Trashed $@"
-}
-
-# alias trash=trash.sh
-
-function mmsget () {
-    mplayer "$1" -dumpstream -dumpfile $(basename "$1")
-}
+    mkdir -p ${TRASH}
 
-function quicktex () {
-    if [[ $1 ]]; then
-        MAIN=$1
-    else
-        MAIN=$(\ls -t *.tex | head -1 | sed -r -e 's/\.tex//')
-    fi
-    pdflatex ${MAIN}
-    bibtex ${MAIN}
-    pdflatex ${MAIN}
-    pdflatex ${MAIN}
-    xpdf ${MAIN}.pdf
-}
+    [[ -h ${LINK} ]] && \rm ${LINK}
 
-######################################################################
-# http://www.reddit.com/r/linux/comments/akt3j/a_functional_programming_style_map_function_for/
+    [[ ! -f ${LINK} ]] && ln -s ${TRASH} ${LINK}
 
-function map () {
-    local command i rep
-    if [ $# -lt 2 ] || [[ ! "$@" =~ :[[:space:]] ]];then
-        echo "Invalid syntax." >&2; return 1
-    fi
-    until [[ "$1" =~ : ]]; do
-        command="$command $1"; shift
-    done
-    command="$command ${1%:}"; shift
-    for i in "$@"; do
-        if [[ $command =~ \{\} ]];then
-            rep="${command//\{\}/\"$i\"}"
-            eval "${rep//\\/\\\\}"
-        else
-            eval "${command//\\/\\\\} \"${i//\\/\\\\}\""
-        fi
-    done
+    mv "$@" ${TRASH}
+    echo "Trashed $@"
 }
 
 ######################################################################
@@ -288,30 +341,23 @@ function map () {
 ## variables
 
 function pho () {
-    PHO_BIN=$(which pho)
     TEMP=$(mktemp /tmp/pho.XXXXXXX)
-    ${PHO_BIN} "$@" | tee ${TEMP}
+    $(which pho) "$@" | tee ${TEMP}
     PHO_NOTE_1=$(grep ^"Note 1: " ${TEMP} | sed -e "s/^[^:]*: //")
     PHO_NOTE_2=$(grep ^"Note 2: " ${TEMP} | sed -e "s/^[^:]*: //")
     PHO_NOTE_3=$(grep ^"Note 3: " ${TEMP} | sed -e "s/^[^:]*: //")
     PHO_NOTE_R90=$(grep ^"Rotate 90 \(CW\): " ${TEMP} | sed -e "s/^[^:]*: //")
     PHO_NOTE_R180=$(grep ^"Rotate 180: " ${TEMP} | sed -e "s/^[^:]*: //")
     PHO_NOTE_R270=$(grep ^"Rotate -90 \(CCW\): " ${TEMP} | sed -e "s/^[^:]*: //")
+    [[ "${PHO_NOTE_1}" ]] || unset PHO_NOTE_1
+    [[ "${PHO_NOTE_2}" ]] || unset PHO_NOTE_2
+    [[ "${PHO_NOTE_3}" ]] || unset PHO_NOTE_3
+    [[ "${PHO_NOTE_R90}" ]] || unset PHO_NOTE_R90
+    [[ "${PHO_NOTE_R180}" ]] || unset PHO_NOTE_R180
+    [[ "${PHO_NOTE_R270}" ]] || unset PHO_NOTE_R270
     \rm ${TEMP}
 }
 
-# function rotjpeg () {
-    # if [ "$1" == "90" ] || [ "$1" == "180" ] || [ "$1" == "270" ]; then
-        # TEMP=$(mktemp /tmp/rotjpeg.XXXXXX)
-        # echo jpegtran -rotate "$1" -copy all $2 > ${TEMP}
-        # echo cp $2 ${2/jpg/}original.jpg
-        # echo cp ${TEMP} $2
-        # rm ${TEMP}
-    # else
-        # echo "Can not rotate with an angle of "$1" degrees."
-    # fi
-# }
-
 ######################################################################
 ## A version of date that shows the time at home if TZ is set
 
@@ -332,29 +378,56 @@ function dt () {
 ## When invoked without an argument netdown removes the last interface
 ## which was netuped
 
-[[ ${NETUP_HISTORY} ]] || NETUP_HISTORY="${HOME}/.netup_history"
+[ ${NETUP_HISTORY} ] || NETUP_HISTORY="${HOME}/.netup_history"
 
 function netup () {
-    if [[ $(ps auxwww | grep dhclient | grep -v grep) ]]; then
+    local upped_wifi
+
+    [[ "${WIFI_INTERFACE}" ]] || WIFI_INTERFACE=wlan0
+
+    if [[ "$1" == "--scan" ]]; then
+        if ifconfig -s | grep -v -q ${WIFI_INTERFACE}; then
+            sudo ifconfig ${WIFI_INTERFACE} up
+            upped_wifi=1
+        fi
+
+        sudo iwlist ${WIFI_INTERFACE} scan | \grep -E 'ESS|Quali|Encry' | sed -e 's/^[ \t]*//'
+
+        if [[ ${upped_wifi} ]]; then
+            sudo ifconfig ${WIFI_INTERFACE} down
+            unset upped_wifi
+        fi
+
+        return 0
+    fi
+
+    if \ifconfig -s | grep -q -v ^'(Iface|lo) '; then
+        echo "There is/are already interface(s) up." >&2
+        return 1
+    fi
+
+    if \ps h -C dhclient | grep -q .; then
         echo "There is already a dhcp client running." >&2
         return 1
     fi
 
-    if [[ $(ps auxwww | grep wpa_supplicant | grep -v grep) ]]; then
+    if \ps h -C wpa_supplicant | grep -q .; then
         echo "There is already a wpa_supplicant running." >&2
         return 1
     fi
 
     if [[ ! "$@" ]] && [[ -s ${NETUP_HISTORY} ]]; then
-        # If we have no argument and there is a .netup_history, use it
-        ARGS=$(cat ${NETUP_HISTORY})
+        echo "netup <interface>" >&2
+        return 1
+        # # If we have no argument and there is a .netup_history, use it
+        # ARGS=$(cat ${NETUP_HISTORY})
     else
         # Otherwise uses the given arguments, and store them
         ARGS="$@"
         echo ${ARGS} > ${NETUP_HISTORY}
     fi
 
-    if [[ -n "${PRIVATE_INTERFACE_DEFINITION}" ]]; then
+    if [[ "${PRIVATE_INTERFACE_DEFINITION}" ]]; then
         ARGS="-i ${PRIVATE_INTERFACE_DEFINITION} ${ARGS}"
     fi
 
@@ -365,6 +438,7 @@ function netup () {
     # explicitely a dns in the /etc/network/interfaces
 
     REMOVE_LOCAL_DNS=/usr/local/bin/remove-local-dns.sh
+    # REMOVE_LOCAL_DNS=${HOME}/sources/scripts/remove-local-dns.sh
 
     if [[ -x ${REMOVE_LOCAL_DNS} ]]; then
         echo "Executing ${VT_GREEN_FG}[sudo ${REMOVE_LOCAL_DNS} 192.168]${VT_RESET}"
@@ -382,17 +456,25 @@ function netdown () {
         ARGS="$@"
     fi
 
-    if [[ -n "${PRIVATE_INTERFACE_DEFINITION}" ]]; then
-        ARGS="-i ${PRIVATE_INTERFACE_DEFINITION} ${ARGS}"
-    fi
+    [[ "${PRIVATE_INTERFACE_DEFINITION}" ]] && ARGS="-i ${PRIVATE_INTERFACE_DEFINITION} ${ARGS}"
 
     echo "Executing sudo ${VT_GREEN_FG}[ifdown ${ARGS}]${VT_RESET}"
     sudo ifdown ${ARGS}
+
+    # if [[ $(\ps -C dhclient | tail -n +2) ]]; then
+    # echo "There is still a dhcp client running." >&2
+    # return 1
+    # fi
+
+    # if [[ $(\ps -C wpa_supplicant | tail -n +2) ]]; then
+    # echo "There is still a wpa_supplicant running." >&2
+    # return 1
+    # fi
 }
 
 function checkgw () {
     GW=$(route -n | grep ^0.0.0.0 | awk '{print $2}')
-    if [[ -n "${GW}" ]]; then
+    if [[ "${GW}" ]]; then
         ping ${GW}
     else
         echo "Can not find a getaway." >&2
@@ -411,12 +493,6 @@ function lr () {
         cut -b1-${WIDTH}
 }
 
-######################################################################
-# cd and ls into a directory
-# [from http://www.oreillynet.com/onlamp/blog/2007/01/whats_in_your_bash_history.html]
-
-# function c () { cd "$@" && lr; }
-
 ######################################################################
 # You can change the xterm background color on the fly!
 
@@ -440,9 +516,21 @@ KEPT_COMMANDS=${HOME}/.kept_bash_commands
 
 function keep () {
     if [[ ${KEPT_COMMANDS} ]]; then
-        LINE=$(history | tail -2 | head -1 | sed -e "s/^[0-9 ]*//")
-        echo $LINE
-        echo $(date)": "${LINE} >> ${KEPT_COMMANDS}
+        TOKEEP=$(mktemp /tmp/keep.XXXXXX)
+        if [[ "$*" ]]; then
+            echo "$*" > ${TOKEEP}
+        else
+            selector -b -i -d -l ${HISTSIZE} -o "${TOKEEP}" <(history)
+        fi
+
+        if [[ -s "${TOKEEP}" ]]; then
+            echo $(date)": "$(cat ${TOKEEP}) >> ${KEPT_COMMANDS}
+            cat "${TOKEEP}"
+        else
+            echo "No command stored!"
+        fi
+
+        \rm ${TOKEEP}
     else
         echo "You have to set \$KEPT_COMMANDS"
     fi
@@ -452,17 +540,19 @@ function keep () {
 # I sometime burn CDs and DVDs
 
 function burn () {
-    DEVICE="/dev/cdrw"
+    DEVICE="/dev/cdrw1"
     if [[ ! "$1" ]]; then
         echo "burn <iso name | dirname>" >&2
     elif [[ -f "$1" ]]; then
-        if [[ $(file "$1" | grep "ISO 9660") ]]; then
+        if [[ $(file "$1" | \grep -E 'ISO 9660|UDF filesystem data') ]]; then
             wodim -eject -v dev=${DEVICE} "$1"
         else
-            echo "Unknown type of $1" >&2
+            echo "Do not know what to do with $1" >&2
         fi
     elif [[ -d "$1" ]]; then
-        TMP=$(mktemp /tmp/cdimage.XXXXXX) && \
+        [[ "${TMP_ROOT}" ]] || TMP_ROOT=/tmp/
+        echo "Using ${TMP_ROOT} as temporary directory."
+        TMP=$(mktemp ${TMP_ROOT}/cdimage.XXXXXX) && \
             genisoimage -input-charset iso8859-1 -r -o ${TMP} "$1" && \
             wodim -eject -v dev=${DEVICE} ${TMP}
         rm -f ${TMP}
@@ -488,7 +578,7 @@ function dvd () {
         dvd_device="$1"
         shift
     else
-        dvd_device="/dev/cdrom"
+        dvd_device="/dev/dvd"
     fi
 
     title="1"
@@ -498,48 +588,42 @@ function dvd () {
         shift
     fi
 
+    # -vc ffmpeg12 -vf yadif
+
     mplayer > /dev/null \
         -stop-xscreensaver \
-        -vc ffmpeg12 -quiet \
-        -vf yadif \
-        -alang en \
+        -quiet \
+        -alang en -slang en \
         -softvol -softvol-max 1000 \
-        -dvd-device ${dvd_device} dvd://${title}
-
-# -slang en
-
+        -dvd-device ${dvd_device} ${MPLAYER_OPTIONS} dvd://${title}
 }
 
 function ripdvd () {
-    mkdir -p ${HOME}/dvds
-    cd ${HOME}/dvds
-    time dvdbackup -v -M && eject
-}
-
-alias ripcd=abcde
-
-######################################################################
-# Upload the sources from the current directory to work
-
-function ulsrc () {
-    if [[ ! "${MY_WORK_MACHINE}" ]]; then
-        echo "\$MY_WORK_MACHINE undefined" 1>&2
+    if [[ -e "/dev/dvd" ]]; then
+        DVD_DEVICE="/dev/dvd"
+    elif [[ -e "/dev/dvd3" ]]; then
+        DVD_DEVICE="/dev/dvd3"
+    else
+        echo "Can not find the dvd device." >&2
         return 1
     fi
 
-    DIR=${PWD/$HOME\//}
+    echo "Attemptin to rip from ${DVD_DEVICE}."
 
-    scp {Makefile,*.{cc,h,sh}} ${MY_WORK_MACHINE}:${DIR}
+    mkdir -p ${HOME}/dvds
 
-    echo "Uploaded to ${MY_WORK_MACHINE}:${DIR}/"
+    cd ${HOME}/dvds
+    time dvdbackup -i ${DVD_DEVICE} -v -M $* && eject
 }
 
+alias ripcd=abcde
+
 ######################################################################
 # Create small images from images
 
 function mksmall () {
 
-    PARAMS="-geometry 800x600"
+    [[ "${PARAMS}" ]] || PARAMS="-geometry 800x600"
 
     # Auto-orient does not seem to work at all, hence the ugly hack
     # with exif below
@@ -567,32 +651,6 @@ function mksmall () {
             if [[ -e ${DEST_DIR}/$i ]]; then
                 echo "The file ${DEST_DIR}/$i already exists."
             else
-
-                orientation=$(exif $i \
-                    | grep ^Orientation \
-                    | head -1 \
-                    | sed -e "s/^[^|]*|//" \
-                    | sed -e "s/ *$//")
-
-                case ${orientation} in
-                    ""|"top - left")
-                        rotation_cmd=""
-                        ;;
-
-                    "right - top")
-                        rotation_cmd="-rotate 90"
-                        ;;
-
-                    "left - bottom")
-                        rotation_cmd="-rotate 270"
-                        ;;
-
-                    *)
-                        rotation_cmd=""
-                        echo "Unknown orientation \"${orientation}\" !"
-                        ;;
-                esac
-
                 if [[ $(file ${i/%.*/}.* | grep -E movie) ]] ; then
                     CAPTION_PARAMS="-font FreeSans-Bold -pointsize 32 -fill green -annotate +10+32 Video"
                 else
@@ -626,149 +684,33 @@ function mvtoconfig () {
     fi
 }
 
-######################################################################
-# Track uncommited files (I presume this is very ugly from a real git
-# user perspective)
-
-function git-fm () {
-    CURRENT_DIR=$(pwd)
-    NB_SUBDIR=0
-
-    for i in $(find -name ".git"); do
-        NB_SUBDIR=$((NB_SUBDIR+1))
-        cd ${CURRENT_DIR}/$(dirname $i)
-        NB_MODIFIED=$(git status | grep modified | wc -l)
-        if [[ ${NB_MODIFIED} -gt 0 ]]; then
-            echo "$(dirname $i) (${NB_MODIFIED})"
-            git status | grep modified \
-                | sed -e "s/^#\t/    /" | sed -e "s/modified: *//"
-        fi
-    done
-
-    cd ${CURRENT_DIR}
-
-    echo "Visited ${NB_SUBDIR} directories."
-}
-
-######################################################################
-# Commits all directories under git
-
-alias git-ca="echo Are you sure?"
-
-function git-ca () {
-    ORIGINAL_PWD=${PWD}
-    UNCOMMITTED=""
-    for d in $(find ${PWD} -name ".git"  | sed -e "s/\.git$//"); do
-        cd $d
-        NB_MODIFIED=$(git status | grep modified | wc -l)
-        if [[ ${NB_MODIFIED} -gt 0 ]]; then
-            if [[ $(pwd) =~ ${NO_AUTOMATIC_GIT_COMMIT} ]]; then
-                UNCOMMITTED="${UNCOMMITTED} $(pwd)"
-            else
-                echo $(pwd)" (${NB_MODIFIED} modified file(s))"
-                git commit -a -m "Automatic commit" | grep -v ^#
-            fi
-            # git gc
-        fi
-    done
-
-    cd ${ORIGINAL_PWD}
-
-    if [[ ${UNCOMMITTED} ]]; then
-        echo "** WARNING: Did not automatically commit${UNCOMMITTED}"
-    fi
-}
-
-######################################################################
-# Backups all git directories into an encrypted backup file located
-# either on the usb key or the SD card (in that order) if they can be
-# mounted.
-
-function git-backup () {
-
-    BACKUPDIR=/mnt/key
-
-    mount ${BACKUPDIR} 2> /dev/null
-
-    if [[ ! $(mount | grep ${BACKUPDIR}) ]]; then
-        BACKUPDIR=/mnt/sd
-        mount ${BACKUPDIR}
-    fi
-
-    if [[ $(mount | grep ${BACKUPDIR}) ]]; then
-        echo "Mounted ${BACKUPDIR}"
-    else
-        echo "Could not mount the backup directory"
-        return 1
-    fi
-
-    RESULT=${BACKUPDIR}/gitbackup-$(date +%F-%H%M%S).tgz.mc
-
-    tar zcvf - $(find ${HOME}/ -name .git) \
-        | mcrypt -f ${HOME}/private/mcrypt.key > ${RESULT}
-
-    if [[ -f ${RESULT} ]]; then
-        ls -lh ${RESULT}
-    else
-        echo "Could not create the backup!"
-        return 1
-    fi
-
-    sync
-
-    umount ${BACKUPDIR} && echo "Umounted ${BACKUPDIR}"
-}
-
-######################################################################
-# Downloads torrents located in ${BT_DIR}/torrents/ and puts the
-# result in the ${BT_DIR}
-
-function bt () {
-    if [[ ${BT_DIR} ]]; then
-        if [[ -d "${BT_DIR}/torrents" ]]; then
-            if [[ "$1" ]]; then
-                mv "$1" ${BT_DIR}/torrents
-            fi
-            if [[ "$(ps auxwww | grep btlaunchmanycurses | grep -v grep)" ]]; then
-                echo "A client is already running."
-            else
-                cd ${BT_DIR} && screen btlaunchmanycurses torrents --max_upload_rate 32
-            fi
-        else
-            echo "Directory ${BT_DIR}/torrents does not exist."
-        fi
-    else
-        echo "You have to set \$BT_DIR."
-    fi
-}
-
 ######################################################################
 # The complex prompt policy
 
 export PS1
 
-if [ "${CONSOLE}" == "yes" ]; then
+if [[ "${CONSOLE}" == "yes" ]]; then
     PS1=""
 else
 
-# If the login is a standard one (as specified in
-# IGNORED_PROMPT_LOGIN, which is set in the private bash file), do not
-# show it. I have IGNORED_PROMPT_LOGIN="^fleuret$".
+    # If the login is a standard one (as specified in
+    # IGNORED_PROMPT_LOGIN, which is set in the private bash file), do not
+    # show it. I have IGNORED_PROMPT_LOGIN="^fleuret$".
 
-    if [ ! ${IGNORED_PROMPT_LOGIN} ] || [[ ! ${USER} =~ ${IGNORED_PROMPT_LOGIN} ]]; then
+    if [[ ! ${IGNORED_PROMPT_LOGIN} ]] || [[ ! ${USER} =~ ${IGNORED_PROMPT_LOGIN} ]]; then
         IDENT="${USER}"
     fi
 
-# If the display is not the main one, make the assumption that the
-# shell is not running on the localhost, and show the hostname
+    # If the display is not the main one, make the assumption that the
+    # shell is not running on the localhost, and show the hostname
 
-    [ "${DISPLAY}" != ":0.0" ] && IDENT="${IDENT}@\h"
+    [[ "${DISPLAY}" != ":0.0" ]] && IDENT="${IDENT}@\h"
 
-# If there is the login or the hostname, add a ":" to the prompt
+    # If there is the login or the hostname, add a ":" to the prompt
 
-    [ "${IDENT}" ] && IDENT="${IDENT}:"
+    [[ "${IDENT}" ]] && IDENT="${IDENT}:"
 
-# If we are root, show that in red
+    # If we are root, show that in red
 
     if [[ ${USER} == "root" ]]; then
         PS1="\[${VT_RED_BG}${VT_WHITE_FG}\]${IDENT}\w\[${VT_RESET}\] "
@@ -776,15 +718,15 @@ else
         PS1="\[${VT_WHITE_BG}${VT_BLACK_FG}\]${IDENT}\w\[${VT_RESET}\] "
     fi
 
-# In an xterm, show the hostname and path in the title bar, highlight
-# the prompt
+    # In an xterm, show the hostname and path in the title bar, highlight
+    # the prompt
 
-    # [ "${TERMS_WITH_BAR}" ] || TERMS_WITH_BAR="^xterm|screen$"
+    # [[ "${TERMS_WITH_BAR}" ]] || TERMS_WITH_BAR="^xterm|screen$"
 
     # if [[ "${TERM}" =~ "${TERMS_WITH_BAR}" ]]; then
-        # PS1="\[${VT_SET_TITLE}shell@\h (\w)${VT_END_TITLE}${VT_WHITE_BG}\]${IDENT}\w\[${VT_RESET}\] "
+    # PS1="\[${VT_SET_TITLE}shell@\h (\w)${VT_END_TITLE}${VT_WHITE_BG}\]${IDENT}\w\[${VT_RESET}\] "
     # else
-        # PS1="\[${VT_WHITE_BG}\]${IDENT}\w\[${VT_RESET}\] "
+    # PS1="\[${VT_WHITE_BG}\]${IDENT}\w\[${VT_RESET}\] "
     # fi
 
 fi
@@ -838,7 +780,6 @@ alias dus='dus -f -i'
 #
 # git clone http://fleuret.org/git/finddup/
 
-# alias finddup='finddup -p0d'
 alias finddup='finddup -p'
 
 ######################################################################
@@ -865,17 +806,66 @@ function selector-printer () {
     lpq
 }
 
+######################################################################
+# A ls with memory to notice what files have been added/removed from
+# the current directory
+
+function lsn () {
+    LSN_MEMORY=".lsn-state"
+
+    if  [[ $1 == "--mem" ]] || [[ "$1" == "-m" ]]; then
+
+        \ls -pa | sort > ${LSN_MEMORY}
+        echo "State updated." >&2
+
+    elif [[ $1 == "+" ]]; then
+
+        shift
+
+        TMP=$(mktemp /tmp/lsn.XXXXXX)
+        \ls -d $* > ${TMP}
+        cat ${LSN_MEMORY} >> ${TMP}
+        sort -u ${TMP} > ${LSN_MEMORY}
+        \rm ${TMP}
+
+    elif [[ "$1" ]]; then
+
+        echo "lsn [--mem|-m] [+ <file> ...]" >&2
+        return 1
+
+    else
+
+        if [[ -f ${LSN_MEMORY} ]]; then
+            TMP=$(mktemp /tmp/lsn.XXXXXX)
+            \ls -pa | sort > ${TMP}
+            if diff > /dev/null ${TMP} ${LSN_MEMORY}; then
+                echo "${VT_GREEN_FG}${VT_BOLD}No change (since $(date +"%b %d, %Y" -r ${LSN_MEMORY}))${VT_RESET}"
+            else
+                \comm -1 -3 ${LSN_MEMORY} ${TMP}
+                \comm -2 -3 ${LSN_MEMORY} ${TMP} | while read line; do
+                    echo "${VT_RED_FG}${VT_BOLD}${line}${VT_RESET} (missing)"
+                done
+            fi
+            \rm ${TMP}
+        else
+            echo "No lsn state here." >&2
+            return 1
+        fi
+
+    fi
+}
+
 ######################################################################
 
 function prompt_command () {
-# save the history after every command to avoid loosing some when
-# multiple shells are open
+    # save the history after every command to avoid loosing some when
+    # multiple shells are open
     history -a
-# load the saved history
+    # load the saved history
     history -n
-# and the local histories system defined above
+    # and the local histories system defined above
     keep_local_history
-# and the history cue
+    # and the history cue
     histfile_cue
 }