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 1
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 1
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 1
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 5
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 2

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

Install pip with Proxy

Installs pip packages defining a proxy

Generate Sha1, MD5 hash using echo

This is mostly for my own notes but this command will compute a md5 message digest from the command line. You can also replace md5sum with other checksum commands (e.g., sha1sum)

Mount a Windows share on the local network (Ubuntu) with user rights and use a specific samba user

Find the modified time (mtime) for a file

Watch movies in your terminal

requires mplayer

list block devices

Shows all block devices in a tree with descruptions of what they are.

Reset hosed terminal,

stty sane resets the tty to basic usable function. The ^J is a newline -- sometimes CR/LF interpretation is broken so use the ^J explicitly.

Using mplayer to play the audio only but suppress the video

Sometimes you only want to linsten the audio while output the video will be a waste of CPU resource and an annoying window. With option -vo null, you will enjoy the audio!

All IP connected to my host

find all computer connected to my host through TCP connection.

shuffle lines via perl

Same, without modules... Probably smarter option: just use the shuf command or even sort -R.

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