Commands by zude

Commands by zude (5)

sorted by

Show current weather for any US city or zipcode

Scrape the National Weather Service Show Sample Output
This is sample output - yours may be different.
```
$ weather chicago, il
Chicago, IL -- Mostly Cloudy: 47 ?F
$ weather los angeles
Los Angeles, CA -- Fair: 83 ?F
$ weather 02456
New Town, MA -- Fair: 44 ?F
```
4

weather() { lynx -dump "http://mobile.weather.gov/port_zh.php?inputstring=$*" | sed 's/^ *//;/ror has occ/q;2h;/__/!{x;s/\n.*//;x;H;d};x;s/\n/ -- /;q';}

zude · 2009-10-17 23:47:47 0
Get decimal ascii code from character

printf treats first char after single ' as numeric equivalent
This is sample output - yours may be different.
1

ord() { printf "%d\n" "'$1"; }

zude · 2009-10-17 22:02:52 0
Function to output an ASCII character given its decimal equivalent
This is sample output - yours may be different.
2

chr() { printf \\$(printf %o $1); }

zude · 2009-10-16 19:10:44 0
Convert unix timestamp to date

The "-d" option for gnu's "date" command can calculate positive or negative offset from any time, including "now". You can even specify a source timezone (the output timezone can be set with the TZ environment variable). Useful! Fun! Not very well documented! Show Sample Output
This is sample output - yours may be different.
```
$ date -ud "1970-01-01 + 1234567890 seconds"
Fri Feb 13 23:31:30 UTC 2009

# and back again
$ date -ud "Fri Feb 13 23:31:30 2009" +%s
1234567890
```
6

date -ud "1970-01-01 + 1234567890 seconds"

zude · 2009-10-07 04:35:40 3
Print text string vertically, one character per line.
This is sample output - yours may be different.
3

echo "vertical text" | fold -1

zude · 2009-10-05 23:20:14 0

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. 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.

Share Your Commands

Check These Out

create dir tree

create tree of dir's in one command

Sniff ONLY POP3 authentication by intercepting the USER command

dsniff is general purpose password sniffer, it handles *lots* of different protocols, but it also handles tcp-style expressions for limiting analyzed traffic - so I can limit it to work on pop3 only.

Pick a random line from a file

Record your desktop

That will capture 200 seconds of video at fullscreen 1680x1050 resolution, but scaled down 25 percent, with 15 frames per second. http://fusioncast.blogspot.com/2007/09/infobyte-how-i-record-my-desktop.html

Start a terminal with three open tabs

If you launch gnome-terminal manually, you can start with three open tabs

fork performance test

grabbed from Andrew Aylett post: http://superuser.com/questions/133313/can-i-speed-up-cygwins-fork

export iPad, iPhone App list to txt file

Poor man's unsort (randomize lines)

return external ip

Get your ip address, hostname, ASN and geolocation information. If you want just one field as a text response you can also get that,eg curl ipinfo.io/ip

Add a progress counter to loop (see sample output)

For this hack you need following function: $ finit() { count=$#; current=1; for i in "$@" ; do echo $current $count; echo $i; current=$((current + 1)); done; } and alias: $ alias fnext='read cur total && echo -n "[$cur/$total] " && read' Inspired by CMake progress counters.

Stay in the loop…

Follow the Tweets.

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

Subscribe to the feeds.

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,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands by zude

Commands by zude (5) the last day the last week the last month all time sorted by date votes

What's this?

Check These Out

Stay in the loop…

Commands by zude (5)

sorted by