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.
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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Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:
IMPORTANT: You need Windows PowerShell to run this command - in your Windows Command Prompt, type
Uses sajb to start a PowerShell background job that pings an IP host every 10 seconds.
Any changes in the host's Up/Down state is time-stamped and logged to a file.
Date/time stamps are logged in two formats: Unix and human-readable.
A while(1) loop repeats the test every 10 seconds by using the sleep command.
See the Sample Output for more detail.
I use this command to log Up/Down events of my Motorola SB6141 cable modem (192.168.100.1).
To end the logging, close the PowerShell window or use the "exit" command.
Mac have direct conversion of seconds (Epoch time)
Get the time since epoch. Useful when working with commands and logs which use this format.
convert a unix timestamp to a human readable format.
this works on Solaris, so not better than the "only-GNU"-tool :-(
I think, there is no one-liner for this, that will work on all *nix-es