(1) Set the tabindex attribute: <div id=”mydiv” tabindex=”0″ /> (2) Bind to keydown: $(‘#mydiv’).on(‘keydown’, function(event) { //console.log(event.keyCode); switch(event.keyCode){ //….your actions for the keys ….. } }); To set the focus on start: $(function() { $(‘#mydiv’).focus(); }); To remove – if you don’t like it – the div focus border, set outline: none in the CSS. … Read more
A more direct way would be: myvar=$(mysql mydatabase -u $user -p$password -se “SELECT a, b, c FROM table_a”)
printf ‘\x31\xc0\xc3′ | dd of=test_blob bs=1 seek=100 count=3 conv=notrunc dd arguments: of | file to patch bs | 1 byte at a time please seek | go to position 100 (decimal) conv=notrunc | don’t truncate the output after the edit (which dd does by default) One Josh looking out for another 😉
You could try to do this with getcode() from urllib import urllib.request print(urllib.request.urlopen(“https://www.stackoverflow.com”).getcode()) 200 For Python 2, use print urllib.urlopen(“http://www.stackoverflow.com”).getcode() 200
If you wanted to remove a certain NUMBER of path components, you should use cut with -d”https://stackoverflow.com/”. For example, if path=/home/dude/some/deepish/dir: To remove the first two components: # (Add 2 to the number of components to remove to get the value to pass to -f) echo $path | cut -d”https://stackoverflow.com/” -f4- # output: # some/deepish/dir … Read more
sending the signal 0 to a given PID just checks if any process with the given PID is running and you have the permission to send a signal to it. For more information see the following manpages: kill(1) $ man 1 kill … If sig is 0, then no signal is sent, but error checking … Read more
The ‘yes’ command will echo ‘y’ (or whatever you ask it to) indefinitely. Use it as: yes | command-that-asks-for-input or, if a capital ‘Y’ is required: yes Y | command-that-asks-for-input If you want to pass ‘N’ you can still use yes: yes N | command-that-asks-for-input
Make if [ “$file” == “*.txt” ] like this: if [[ $file == *.txt ]] That is, double brackets and no quotes. The right side of == is a shell pattern. If you need a regular expression, use =~ then.
Like this: [[ $(type -t foo) == function ]] && echo “Foo exists” The built-in type command will tell you whether something is a function, built-in function, external command, or just not defined. Additional examples: $ LC_ALL=C type foo bash: type: foo: not found $ LC_ALL=C type ls ls is aliased to `ls –color=auto’ $ … Read more
Active Setup is no longer advisable (original source). There are several ways to achieve what you want – one clunkier than the other. Terminal servers can be a deployment nightmare – users may not have rights to run msiexec.exe and hence MSI self-repair could fail. That’s why I generally prefer to use batch files, scripts … Read more