Add translated script
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183
earth_wallpaper.sh
Executable file
183
earth_wallpaper.sh
Executable file
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#!/bin/bash
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#
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# earth_wallpaper.sh
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#
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# Description: Obtain an image of the planet earth centered over
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# a city, with the night shadow according to the current time and
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# overlay of information
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#
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cur_dir=$(dirname "${0}")
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# shellcheck disable=SC1091
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[ -r "${cur_dir}/shared_functions.sh" ] && . "${cur_dir}/shared_functions.sh"
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wallpaper_file="${HOME}/wallpaper.jpg"
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wallpaper_file2="/etc/lightdm/background.jpg"
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archive_folder="${HOME}/earth_pics"
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screen_width=1366
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# `convert -list font` to get the list of fonts
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font_name="Bitstream-Vera-Sans"
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gsettings_cmd=$(which gsettings)
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font_name=$("${gsettings_cmd}" get org.gnome.desktop.interface font-name | sed "s/'//g" | sed 's/ [0-9]*$//g')
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check_internet() {
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default_route=$(/sbin/route -n | egrep "^0.0.0.0")
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if [ "$default_route" == "" ]; then
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return 1
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fi
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ping -q -c 2 en.wikipedia.org &> /dev/null
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return $?
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}
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check_internet || exit 1
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message "Using font '${font_name}'"
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wget_cmd=$(which wget)
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if [ -z ${wget_cmd} ]; then
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echo "It seems like wget is not installed."
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exit 3
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fi
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city="$1"
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if [[ -z ${city} ]]; then
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echo "You must indicate a city to center the image."
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exit 4
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fi
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str_city=$(echo "$city" | sed "s/ /_/g" -)
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message "str_city $str_city"
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wiki_url="https://en.wikipedia.org/wiki/$str_city"
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message "wiki_url $wiki_url"
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wiki_content=$("${wget_cmd}" -q -O - $wiki_url)
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latitude=$(echo $wiki_content | egrep -o "[0-9]{1,2}°[0-9]?[0-9]?′?[0-9]?[0-9]?″?[NS]" | head -n 1)
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message "latitude $latitude"
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longitude=$(echo $wiki_content | egrep -o "[0-9]{1,2}°[0-9]?[0-9]?′?[0-9]?[0-9]?″?[EW]" | head -n 1)
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message "longitude $longitude"
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g_latitude=$(echo $latitude | egrep -o "[0-9]{1,2}°" | sed "s/°//g" - )
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message "g_latitude $g_latitude"
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m_latitude=$(echo $latitude | egrep -o "[0-9]{1,2}′" | sed "s/′//g" - )
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message "m_latitude $m_latitude"
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[[ "$m_latitude" == "" ]] && m_latitude=0
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s_latitude=$(echo $latitude | egrep -o "[0-9]{1,2}″" | sed "s/″//g" - )
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message "s_latitude $s_latitude"
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[[ "$s_latitude" == "" ]] && s_latitude=0
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o_latitude=$(echo $latitude | egrep -o "[NS]")
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if [[ "$o_latitude" == "S" ]]; then
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o_latitude=South
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else
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o_latitude=North
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fi
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message "o_latitude $o_latitude"
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gm_latitude=$(echo "scale=2; $m_latitude / 60" | bc)
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message "gm_latitude $gm_latitude"
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gs_latitude=$(echo "scale=2; $m_latitude / 3600" | bc)
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message "gs_latitude $gs_latitude"
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g_latitude=$(echo "scale=2; $g_latitude + $gm_latitude + $gs_latitude" | bc)
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message "g_latitude $g_latitude"
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g_longitude=$(echo $longitude | egrep -o "[0-9]{1,2}°" | sed "s/°//g" - )
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message "g_longitude $g_longitude"
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m_longitude=$(echo $longitude | egrep -o "[0-9]{1,2}′" | sed "s/′//g" - )
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[[ "$m_longitude" == "" ]] && m_longitude=0
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message "m_longitude $m_longitude"
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s_longitude=$(echo $longitude | egrep -o "[0-9]{1,2}″" | sed "s/″//g" - )
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[[ "$s_longitude" == "" ]] && s_longitude=0
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message "s_longitude $s_longitude"
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o_longitude=$(echo $longitude | egrep -o "[EW]")
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if [[ "$o_longitude" == "E" ]]; then
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o_longitude=East
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else
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o_longitude=West
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fi
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message "o_longitude $o_longitude"
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gm_longitude=$(echo "scale=2; $m_longitude / 60" | bc)
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message "gm_longitude $gm_longitude"
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gs_longitude=$(echo "scale=2; $m_longitude / 3600" | bc)
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message "gs_longitude $gs_longitude"
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g_longitude=$(echo "scale=2; $g_longitude + $gm_longitude + $gs_longitude" | bc)
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message "g_longitude $g_longitude"
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#url='http://www.fourmilab.ch/cgi-bin/Earth?img=learth.evif&imgsize=1366&dynimg=y&opt=-l&lat=41&ns=North&lon=0&ew=East&alt=35785&tle=&date=0&utc=&jd='
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url="http://www.fourmilab.ch/cgi-bin/Earth?img=learth.evif&imgsize=$screen_width&dynimg=y&opt=-l&lat=$g_latitude&ns=$o_latitude&lon=$g_longitude&ew=$o_longitude&alt=35785&tle=&date=0&utc=&jd="
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message "URL $url"
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cur_date=$(date +%Y-%m-%d)
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time=$(date +%H.%M.%S)
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date="$cur_date_$time"
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if [[ -e $wallpaper_file ]]; then
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rm "${wallpaper_file}" -rf
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fi
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"${wget_cmd}" -q $url -O $wallpaper_file
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error_code=$?
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if [[ "$error_code" != "0" ]]; then
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echo "Error $error_code downloading image from '$url' to '$wallpaper_file'"
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exit 1
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fi
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if [[ "$o_latitude" == "South" ]]; then
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g_latitude="-$g_latitude"
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fi
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if [[ "$o_longitude" == "West" ]]; then
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g_longitude="-$g_longitude"
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fi
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weather_url="http://api.wunderground.com/api/be78b9c2c0dbd00f/conditions/lang:ES/q/$g_latitude,$g_longitude.xml"
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temperature=$("${wget_cmd}" -q -O - "$weather_url" | egrep -o "<temp_c>-?[0-9]*\.?[0-9]?</temp_c>" | sed "s/<temp_c>//g" - | sed "s|</temp_c>||g" -)
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text="Image from $cur_date at $time\n$city $temperatureº C"
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convert_cmd=$(which convert)
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if [ ! -x "${convert_cmd}" ]; then
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apt install imagemagick
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fi
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run_and_log "${convert_cmd}" $wallpaper_file -pointsize 50 -font "${font_name}" -fill "#505050" -gravity SouthEast -annotate +0+0 "$text" $wallpaper_file
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error_code=$?
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if [[ "$error_code" != "0" ]]; then
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echo "Error $error_code adding date to the image"
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fi
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mkdir $archive_folder -p
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if pgrep lightdm > /dev/null
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then
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if [[ -w "$wallpaper_file2" ]]
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then
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cp "$wallpaper_file" "$wallpaper_file2"
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else
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echo "I'm not able to write to $wallpaper_file2"
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fi
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fi
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# Store the image
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cp "$wallpaper_file" "$archive_folder/pic_$date.jpg" -rfp
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error_code=$?
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if [[ "$error_code" != "0" ]]; then
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echo "Error $error_code saving a copy of the image"
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fi
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# Set the gnome 2 desktop background
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if [ "${gconf_cmd}" != "" ]; then
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run_and_log "${gconf_cmd}" --type string --set /desktop/gnome/background/picture_options scaled
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error_code=$?
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if [[ "$error_code" != "0" ]]; then
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echo "Error $error_code setting option scaled for the wallpaper"
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fi
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run_and_log "${gconf_cmd}" --type string --set /desktop/gnome/background/picture_filename "${wallpaper_file}"
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error_code=$?
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if [[ "$error_code" != "0" ]]; then
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echo "Error $error_code setting image file as wallpaper in Gnome 2"
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fi
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fi
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if [ "${gsettings_cmd}" != "" ]; then
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run_and_log "${gsettings_cmd}" set org.gnome.desktop.background picture-uri "file://$wallpaper_file"
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error_code=$?
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if [[ "$error_code" != "0" ]]; then
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echo "Error $error_code setting image file as wallpaper in Gnome"
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fi
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run_and_log "${gsettings_cmd}" set org.gnome.desktop.background picture-options "scaled"
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run_and_log "${gsettings_cmd}" set org.gnome.desktop.background primary-color '#000000'
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run_and_log "${gsettings_cmd}" set com.canonical.unity-greeter background "$wallpaper_file2"
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fi
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if pgrep gnome-session > /dev/null
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then
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message "This is Gnome, no XFdesktop to reload."
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else
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run_and_log xfdesktop --reload 2> /dev/null
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error_code=$?
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if [[ "$error_code" != "0" ]]; then
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echo "Error $error_code reloading xfdesktop" > /dev/null
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fi
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fi
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91
shared_functions.sh
Executable file
91
shared_functions.sh
Executable file
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@ -0,0 +1,91 @@
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#!/bin/bash
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function message() {
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red="\e[1;31m"
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yellow="\e[1;33m"
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blue="\e[34m"
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if [ -z "${APP}" ]; then
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app=$(basename "${0}" .sh)
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else
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app="${APP}"
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fi
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current_date=$(date '+%Y-%m-%d %H:%M:%S')
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text="${1}"
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if [ -n "${text}" ]; then
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if [ ${#} -gt 1 ]; then
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print="${2}"
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shift
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else
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print=""
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fi
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if [ ${#} -gt 1 ]; then
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extra_args="${2}"
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shift
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subject="${2}"
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shift
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recipient="${2}"
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shift
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else
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extra_args=""
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fi
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# shellcheck disable=SC2153
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if [ -z "${LOG_FILE}" ];then
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if [ -w /var/log ]; then
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log_file="/var/log/${app}.log"
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else
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mkdir -p "${HOME}/log/"
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log_file="${HOME}/log/${app}.log"
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fi
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else
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log_file="${LOG_FILE}"
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fi
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mkdir -p "$(dirname "${log_file}")"
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if [[ "${print}" =~ [Ww][Aa][Rr][Nn] ]]; then
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echo -e "${yellow}${current_date} ${text}"
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else
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if [[ "${print}" =~ [Ee][Rr][Rr] ]]; then
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>&2 echo -e "${red}${current_date} ${text}"
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else
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if [[ ( -n "${DEBUG}" ) && ( "${DEBUG}" == "true" ) || ( "${DEBUG}" -gt "0" ) ]] || [[ "${print}" =~ [Pp] ]] || [[ "${print}" =~ [Pp][Rr][Ii][Nn][Tt] ]]; then
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echo -e "${blue}${current_date} ${text}"
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fi
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fi
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fi
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echo "${current_date} ${text}" >> "${log_file}"
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logger -t "${app}" "${text}"
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if [ "${extra_args}" == "to_mail" ]; then
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echo "${text}" | mail -s "${subject}" "${recipient}"
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fi
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fi
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}
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function run_and_log() {
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extra_args=""
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if [ "${1}" == "to_mail" ]; then
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extra_args="to_mail"
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shift
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subject="${1}"
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shift
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recipient="${1}"
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shift
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fi
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CMD=$*
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message "Running and logging: ${CMD}"
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if [[ ( -n "${DEBUG}" ) && ( "${DEBUG}" == "true" ) ]]; then
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temp_file=$(mktemp /tmp/tmp.XXXX.log)
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message "Debug log file '${temp_file}'"
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output=$(${CMD} 2>&1 |tee "${temp_file}")
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else
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output=$(${CMD} 2>&1)
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fi
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return_code="${?}"
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for line in "${output[@]}"
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do
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message "${line}" "${extra_args}" "${subject}" "${recipient}"
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done <<< "${output[@]}"
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if [ "${return_code}" != "0" ]; then
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message "Command run finished with error ${return_code}." "${extra_args}" "${subject}" "${recipient}"
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else
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message "Command ran without errors." "${extra_args}" "${subject}" "${recipient}"
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fi
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}
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