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How to use mod operator in bash?
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Try the following:
for i in {1..600}; do echo wget http://example.com/search/link$(($i % 5)); done
The $(( )) syntax does an arithmetic evaluation of the contents.
share
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What is the best way to detect a mobile device?
...(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|...
Regular expression to match DNS hostname or IP Address?
...):
$pattern = '/^(([a-z0-9]+|([a-z0-9]+[-]+[a-z0-9]+))[.])+(AC|AD|AE|AERO|AF|AG|AI|AL|AM|AN|AO|AQ|AR|ARPA|AS|ASIA|AT|AU|AW|AX|AZ|BA|BB|BD|BE|BF|BG|BH|BI|BIZ|BJ|BM|BN|BO|BR|BS|BT|BV|BW|BY|BZ|CA|CAT|CC|CD|CF|CG|CH|CI|CK|CL|CM|CN|CO|COM|COOP|CR|CU|CV|CX|CY|CZ|DE|DJ|DK|DM|DO|DZ|EC|EDU|EE|EG|ER|ES|ET|EU...
Open Graph namespace declaration: HTML with XMLNS or head prefix?
...ome Internet Explorer 8 issue. So in the end I still use the xmlns way for fb namespace:
<!DOCTYPE HTML>
<html xmlns:fb="http://ogp.me/ns/fb#">
<head prefix="og: http://ogp.me/ns# object: http://ogp.me/ns/object#">
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What do the f and t commands do in Vim?
...jumps over the lazy dog.
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These commands find characters on a line. So fb would place the cursor here:
The quick brown fox jumps over the lazy dog.
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t is like f but places the cursor on the preceding character. So tb would give you:
The quick brown fox jumps over the lazy dog.
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How do I output coloured text to a Linux terminal?
...RECT colors that particular terminal support.
BSD Based
fg_black="$(tput AF 0)"
fg_red="$(tput AF 1)"
fg_green="$(tput AF 2)"
fg_yellow="$(tput AF 3)"
fg_blue="$(tput AF 4)"
fg_magenta="$(tput AF 5)"
fg_cyan="$(tput AF 6)"
fg_white="$(tput AF 7)"
reset="$(tput me)"
Linux Based
fg_black="$(tput ...
How do I decode a base64 encoded string?
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87
The m000493 method seems to perform some kind of XOR encryption. This means that the same metho...
mkdir's “-p” option
...onyms :). My search returned this for example: http://www.cs.cmu.edu/~help/afs/afs_acls.html
Directory permissions
l (lookup)
Allows one to list the contents of a directory. It does not allow the reading of files.
i (insert)
Allows one to create new files in a directory or copy new files...
How can I stop redis-server?
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600
Either connect to node instance and use shutdown command or if you are on ubuntu you can try t...
Simple C example of doing an HTTP POST and consuming the response
...Request:\n%s\n",message);
/* create the socket */
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd < 0) error("ERROR opening socket");
/* lookup the ip address */
server = gethostbyname(host);
if (server == NULL) error("ERROR, no such host");
/* fill in the stru...