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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.
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This command will ask for remote sudo password before executing a remote command.
Fetch comical VC commit messages from whatthecommit.com
-r ? указывает на то, что нужно рекурсивно переходить по ссылкам на сайте, чтобы скачивать страницы.
-k ? используется для того, чтобы wget преобразовал все ссылки в скаченных файлах таким образом, чтобы по ним можно было переходить на локальном компьютере (в автономном режиме).
-p ? указывает на то, что нужно загрузить все файлы, которые требуются для отображения страниц (изображения, css и т.д.).
-l ? определяет максимальную глубину вложенности страниц, которые wget должен скачать (по умолчанию значение равно 5, в примере мы установили 7). В большинстве случаев сайты имеют страницы с большой степенью вложенности и wget может просто ?закопаться?, скачивая новые страницы. Чтобы этого не произошло можно использовать параметр -l.
-E ? добавлять к загруженным файлам расширение .html.
-nc ? при использовании данного параметра существующие файлы не будут перезаписаны. Это удобно, когда нужно продолжить загрузку сайта, прерванную в предыдущий раз.
Most systems (at least my macbook) have system users defined, such as _www and using "users" for example will not list them. This command allows you to see who the 'virtual' users are on your system.
A good way to understand what you've let yourself in for. Potential project metric could be the count:
svn log | grep -c "bodge\|fudge\|hack\|dirty"
this will increase the volume by 2 decibels on the pcm channel. the argument to -c is for which sound card to use, the arg after set is the channel (PCM, Master, etc.) and what to set by.
related commands:
amixer -c 0 set PCM 2dB-
decrease volume by 2 decibels
amixer -c 0 set PCM toggle
toggle mute/unmute
this is for alsa systems
for mac os (and maybe other UNIX systems) osascript -e 'set Volume *' where * is any number (can have decimal points) between 0 and 10
Well this can come handy , when you don't feel like playing with pid rather if you know
the process name say "firefox",it would kill it.The script given below would kill the process with its name given as first parameter , though not robust enough to notify that process doesn't exist , well if you know what you are doing that's wouldn't be a problem.:)
----
killhim.sh
----
#!/bin/bash
ps -u $USER |grep $1 | awk '{ print $1}'| xargs kill
----
Add an alias to your .bashrc that allows you to issue the command xkcd to view (with gwenview) the newest xkcd comic... I know there are thousands of them out there but this one is at least replete with installer and also uses a more concise syntax... plus, gwenview shows you the downloading progress as it downloads the comic and gives you a more full featured viewing experience.
This command does the following:
- converts any sequence of multiple spaces/tabs to one space only
- completely removes any space(s)/tab(s) at the end of each line
(If spaces and tabs are mixed in a sequence i.e. [tab][tab][space][tab], you have to execute this command twice!)
Will search recursively and output the searchResult.txt in the same folder you are located.
uses the -u switch for UTC
Another way could be
echo $(($(date -ud "00:29:36" +%s)%86400))