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swap out "80" for your port of interest. Can use port number or named ports e.g. "http"
A bitcoin "brainwallet" is a secret passphrase you carry in your brain.
The Bitcoin Brainwallet Private Key Base58 Encoder is the third of three functions needed to calculate a bitcoin PRIVATE key from your "brainwallet" passphrase.
This base58 encoder uses the obase parameter of the amazing bc utility to convert from ASCII-hex to base58. Tech note: bc inserts line continuation backslashes, but the "read s" command automatically strips them out.
I hope that one day base58 will, like base64, be added to the amazing openssl utility.
list top committers (and number of their commits) of svn repository.
in this example it counts revisions of current directory.
Not as taxing on the CPU.
This command displays a clock on your terminal which updates the time every second. Press Ctrl-C to exit.
A couple of variants:
A little bit bigger text:
$ watch -t -n1 "date +%T|figlet -f big"
You can try other figlet fonts, too.
Big sideways characters:
$ watch -n 1 -t '/usr/games/banner -w 30 $(date +%M:%S)'
This requires a particular version of banner and a 40-line terminal or you can adjust the width ("30" here).
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"
Dave Korn gave me this one. It works because ksh allows variable names ( w/o the $name syntax ) used by sh and bash.
I wrote it to permit "single source" shell libraries; the current objective: every shell library may be sourced by either shell. see http://github.com/applemcg/backash
ifconfig can't properly display interface's name longer 9 symbols,also it can't show IPs added thru ip command, so 'ip' should be used instead. This alias properly shows long names, bond interfaces and all interface aliases. loopback interface is ignored, since its IP is obvious
checkfor: have the shell check anything you're waiting for.
'while : ; do' is an infinite loop
'$*' executes the command passed in
'sleep 5' - change for your tastes, sleep for 5 seconds
bash, ksh, likely sh, maybe zsh
Ctrl-c to break the loop
Infinitely plays beeps with sinusoidally changing sound frequency. Ideal for alarm on an event.