Commands by qwertyroot (3)

  • Get/List firefox bookmarks by tag from json backup

    # Usage: ftagmarks TAG BOOKMARKS.JSON ftagmarks Bash ~/.mozilla/firefox/*.default/bookmarkbackups/bookmarks-*.json Tag can be partial matching, e.g. input 'Bas' or 'ash' will match 'Bash' tag. # Exact tag matching: ftagmark(){ jq -r --arg t "$1" '.children[] as $i|if $i.root == "tagsFolder" then ([$i.children[] as $j|{title: ($j.title), urls: [$j.children[].uri]}]) else empty end|.[] as $k|if $k.title == $t then $k.urls else empty end|.[]?' "$2"; } Usage: ftagmark TAG BOOKMARKS.JSON # List all tags: ftagmarkl(){ jq -r '.children[] as $i | if $i.root == "tagsFolder" then $i.children[].title else empty end' "$1"; } Usage: ftagmarkl BOOKMARKS.JSON # Requires: `jq` - must have CLI JSON processor http://stedolan.github.io/jq Show Sample Output


    0
    ftagmarks(){ jq -r --arg t "$1" '.children[] as $i|if $i.root == "tagsFolder" then ([$i.children[] as $j|{title: ($j.title), urls: [$j.children[].uri]}]) else empty end|.[] as $k|if ($k.title|contains($t)) then $k.urls else empty end|.[]?' "$2"; }
    qwertyroot · 2016-12-24 15:12:04 15
  • Parse YouTube url (get youtube video id)

    url can be like any one of followings: url="MejbOFk7H6c" url="http://youtu.be/MejbOFk7H6c" url="https://youtube.com/watch?feature=player_embedded&v=MejbOFk7H6c#t" url="//www.youtube.com/v/MejbOFk7H6c?hl=ru_RU&version=3&rel=0" url="http://www.youtube.com/embed/MejbOFk7H6c?feature=player_embedded" If url mismatching, whole url will be returned. Show Sample Output


    3
    sh -c 'url="http://youtu.be/MejbOFk7H6c"; vid="`for i in ".*youtu\.be/\([^\/&?#]\+\)" ".*youtu.\+v[=/]\([^\/&?#]\+\)" ".*youtu.\+embed/\([^\/&?#]\+\)"; do expr "${url}" : "${i}"; done`"; if [ -n "${vid}" ]; then echo ${vid}; else echo "${url}"; fi'
    qwertyroot · 2013-09-04 19:33:09 9
  • Batch symbolic links creation

    Replace '/tmp/file 1.txt' '/tmp/file 2.jpg' with "$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS" for Nautilus script Or with %F for Thunar action If you linking the symlinks itself, but want to link to source files instead of symlinks, use "`readlink -m "$i"`" instead of "$i" like this: for i in '/tmp/file 1.txt' '/tmp/file 2.jpg'; do ln -s "`readlink -m "$i"`" "$i LINK"; done ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Show Sample Output


    0
    for i in '/tmp/file 1.txt' '/tmp/file 2.jpg'; do ln -s "$i" "$i LINK"; done
    qwertyroot · 2013-08-02 08:30:50 11

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Makes you look busy
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list files recursively by size

Generate random valid mac addresses
Doubt it actually generates valid mac addresses but this version doesn't need any external commands so it runs much faster. Much shorter as well.

List out classes in of all htmls in directory
Lists out all classes used in all *.html files in the currect directory. usefull for checking if you have left out any style definitions, or accidentally given a different name than you intended. ( I have an ugly habit of accidentally substituting camelCase instead of using under_scores: i would name soemthing counterBox instead of counter_box) WARNING: assumes you give classnames in between double quotes, and that you apply only one class per element.

Create a tar archive using xz compression
Compress files or a directory to xz format. XZ has superior and faster compression than bzip2 in most cases. XZ is superior to 7zip format because it can save file permissions and other metadata data.

Insert a line at the top of a text file without sed or awk or bash loops
Yet another way to add a line at the top a of text file with the help of the tac command (reverse cat).

Shows size of dirs and files, hidden or not, sorted.
Enhanced version: fixes sorting by human readable numbers, and filters out non MB or GB entries that have a G or an M in their name.

fast access to any of your favorite directory.
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List recorded formular fields of Firefox
When you fill a formular with Firefox, you see things you entered in previous formulars with same field names. This command list everything Firefox has registered. Using a "delete from", you can remove anoying Google queries, for example ;-)

know the current running shell (the true)
Return the current shell. It is better than print $SHELL which can sometimes return a false value.

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