Print the URLs in a css file:
sed -rn 's/^.*url\((.+\.[a-z]+)\).*$/\1/p' file.css
I had a css file that referenced a some images in a directory that contained lots of images and wanted to move just the images referenced in the css file to a new directory, so ended doing something along the lines of:
for p in $(sed -rn 's/^.*url\((.+\.[a-z]+)\).*$/\1/p' file.css); do cp ~/old_path/css/$p new_path/$p; done
Once or twice a month I'll find myself working on some random little project with a web UI and so of course I need jquery at which point I wonder if I have the latest version.. hence, a little script to get the latest and greatest:
#!/bin/bash wget $(\ wget -qO - http://docs.jquery.com/Downloading_jQuery |\ sed -rn 's#^.*(http://code.jquery.com/jquery-[[:digit:]]+.[[:digit:]]+.[[:digit:]]+.min.js).*$#\1#p' |\ head -n 1 )
todo: check local jquery copy to see if there actually is a new version we need to download
find . -type f -print0 | xargs -0 grep -lZ "happy" | xargs -0 sed -i 's/happy/blammo/g'The -l option to grep prints file names only and stops with the first match (so no duplicates). -Z uses null byte for separator instead of newline.
for f in *.mysql; do echo $f && mysql -u username -psecretpw db < $f ; doneechos the file name as it goes
find . -type f | xargs ls -l 2>/dev/null | sort -r -k6,6 -k7,7 | most
hexdump -v -e '"%07_ad" 1/1 " %03o"' -e '1/1 " %03u"' -e '1/1 " %03x"' -e '1/1 " %_c \n"'And in a bash script taking a file:
#!/bin/bash hexdump -v -e '"%07_ad" 1/1 " %03o"' -e '1/1 " %03u"' -e '1/1 " %03x"' -e '1/1 " %_c \n"' $1Example output when called on itself:
0000000 043 035 023 # 0000001 041 033 021 ! 0000002 057 047 02f / 0000003 142 098 062 b 0000004 151 105 069 i 0000005 156 110 06e n 0000006 057 047 02f / 0000007 142 098 062 b 0000008 141 097 061 a 0000009 163 115 073 s 0000010 150 104 068 h 0000011 012 010 00a \n 0000012 012 010 00a \n 0000013 150 104 068 h 0000014 145 101 065 e 0000015 170 120 078 x 0000016 144 100 064 d 0000017 165 117 075 u 0000018 155 109 06d m 0000019 160 112 070 p 0000020 040 032 020 0000021 055 045 02d - 0000022 166 118 076 v 0000023 040 032 020 0000024 055 045 02d - 0000025 145 101 065 e 0000026 040 032 020 0000027 047 039 027 ' 0000028 042 034 022 " 0000045 063 051 033 3 0000046 157 111 06f o 0000047 042 034 022 " 0000048 047 039 027 ' 0000049 040 032 020 0000050 055 045 02d - 0000051 145 101 065 e 0000052 040 032 020 0000053 047 039 027 ' 0000054 061 049 031 1 0000055 057 047 02f / 0000056 061 049 031 1 0000057 040 032 020 0000058 042 034 022 " 0000059 040 032 020 0000060 045 037 025 % 0000061 060 048 030 0 0000062 063 051 033 3 0000063 165 117 075 u 0000064 042 034 022 " 0000065 047 039 027 ' 0000066 040 032 020 0000067 055 045 02d - 0000068 145 101 065 e 0000069 040 032 020 0000070 047 039 027 ' 0000071 061 049 031 1 0000072 057 047 02f / 0000073 061 049 031 1 0000074 040 032 020 0000075 042 034 022 " 0000076 040 032 020 0000077 045 037 025 % 0000078 060 048 030 0 0000079 063 051 033 3 0000080 170 120 078 x 0000081 042 034 022 " 0000082 047 039 027 ' 0000083 040 032 020 0000084 055 045 02d - 0000085 145 101 065 e 0000086 040 032 020 0000087 047 039 027 ' 0000088 061 049 031 1 0000089 057 047 02f / 0000090 061 049 031 1 0000091 040 032 020 0000092 042 034 022 " 0000093 040 032 020 0000094 045 037 025 % 0000095 137 095 05f _ 0000096 143 099 063 c 0000097 040 032 020 0000098 134 092 05c \ 0000099 156 110 06e n 0000100 042 034 022 " 0000101 047 039 027 ' 0000102 040 032 020 0000103 044 036 024 $ 0000104 061 049 031 1 0000105 012 010 00a \n
#!/bin/bash
usage()
{
cat << EOF
usage: $0 -t transition_time -s static_time (-d dirs|-r recursive_dirs)
OPTIONS:
-h Show this message
-t required. time of transition between images, in seconds
-s required. time each image is show
-d comma separated list of directories containing images.
-r comma separated list of directories that contain images and
other directories with more images
Either dirs, recursive_dirs, or both is required
EOF
if [[ -z $1 ]]; then exit 1; else exit $1; fi
}
set_img_paths()
{
dir_path=$1
find_opts=$2
for file_path in $(find ${dir_path} ${find_opts} -type f)
do
mime_type=$(file --mime-type ${file_path})
if [[ $mime_type =~ ^.*:[[:space:]]+image/(.*)$ ]]
then
img_paths[${#img_paths[*]}]=$file_path
fi
done
}
while getopts ":hd:r:t:s:" x
do
case $x in
h) usage 0 ;;
t) transition_time=$OPTARG ;;
s) static_time=$OPTARG ;;
d) dirs[${#dirs[*]}]=$OPTARG ;;
r) recursive_dirs[${#recursive_dirs[*]}]=$OPTARG ;;
esac
done
if [[ -z $transition_time ]]; then usage; fi
if [[ -z $static_time ]]; then usage; fi
if [[ ${#dirs[*]} -eq 0 && ${#recursive_dirs[*]} -eq 0 ]]; then usage; fi
# array for our image paths
declare -a img_paths
# loop over directories to search non-recursively for images
for ((i=0; i<${#dirs[*]}; i++))
do
set_img_paths "${dirs[$i]}" "-maxdepth 1"
done
# loop over directories to search recursively for images
for ((i=0; i<${#recursive_dirs[*]}; i++))
do
set_img_paths "${recursive_dirs[$i]}" ""
done
# make sure we have some images
if [[ ${#img_paths[*]} -eq 0 ]]
then
echo "Error: could not find any images"
exit 2
fi
# randomize our array
random_order=$(seq ${#img_paths[*]} | shuf)
i=0
for r in $random_order
do
randomized[$i]=${img_paths[$r-1]}
i=$(( $i + 1 ))
done
# write our background xml file to stdout
echo ""
for ((i=0; i<${#randomized[*]}; i++))
do
img_path=${randomized[$i]}
echo -n "
${static_time}
${img_path}
"
# transition to next image, or, if we are showing the last image, transition back to first image
[[ $(( $i + 1 )) -lt ${#randomized[*]} ]] && next_img=${randomized[$i+1]} || next_img=${randomized[0]}
echo -n "
${transition_time}
${img_path}
${next_img}
"
done
echo " "
gsettings set org.gnome.desktop.background picture-uri 'file:///path/to/file/background.xml' http://askubuntu.com/questions/67218/how-do-i-create-a-desktop-wallpaper-slideshow-in-oneiric
as best I can tell this property is stored in ~/.gconf/desktop/gnome/background/%gconf.xml
more to come on this in a bit
find . -name ".svn" -type d | xargs rm -rf