commandlinefu.com is the place to record those command-line gems that you return to again and again.
Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.
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Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10
Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):
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# 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
Looking up the id of a CF domain can be painful. Not anymore with this tip.
Returns the current price of a troy ounce of gold, in USD. Requires the "jq" JSON parser.
Returns the global weighted BTC rate in EUR. Requires the "jq" JSON parser.
The only pre-requisite is jq (and curl, obviously).
The other version used grep, but jq is much more suited to JSON parsing than that.
Uses the python-based AWS CLI (https://aws.amazon.com/cli/) and the JSON query tool, JQ (https://stedolan.github.io/jq/)
Uses the python-based AWS CLI (https://aws.amazon.com/cli/) and the JSON query tool, JQ (https://stedolan.github.io/jq/)
You can do the filtering natively in the aws cli, without using jq (although jq is awesome!)
Use the AWS CLI tools to generate a list instances, then pipe them to JQ to show only their launch time and instance id. Finally use sort to bring them out in runtime order. Find all those instances you launched months ago and have forgotten about.