Go provides several ways to perform looping, including the for loop. Here are some examples of using the for loop in Go: Classic for loop: for i := 0; i < 10; i++ { fmt.Println(i) } This loop will start from 0, continue until i is less than 10, and increment i by 1 on … Read more

By default, WordPress does not allow shortcodes to be executed in excerpts. To enable shortcodes in WordPress excerpts, you need to add the following code to your theme’s functions.php file: add_filter(‘the_excerpt’, ‘do_shortcode’); This code adds a filter to the the_excerpt function, which runs the do_shortcode function on the excerpt before it is displayed. The do_shortcode … Read more

In FreeBSD, you can allow normal users to mount CDROMs, DVDs, and USB devices by adding them to the operator group. The operator group is automatically granted the ability to mount removable devices. To add a user to the operator group, use the pw utility as follows: sudo pw groupmod operator -m <username> Where <username> … Read more

You can check if the shell is interactive or not by checking the value of the -o option of the PS1 environment variable: if [ “${-#*i}” != “$-” ]; then echo “Interactive shell” else echo “Not an interactive shell” fi In this example, “${-#*i}” expands to the value of the $- variable with the first … Read more

To send the charset utf-8 with Nginx web server under Unix / Linux, you need to add the following code to your Nginx configuration file: http { # … add_header ‘Content-Type’ ‘text/html; charset=UTF-8’; # … } You can add this code inside the http block of your Nginx configuration file. This header will be sent … Read more

To disable the APC (Alternative PHP Cache) module in PHP command line scripts or cron scripts, you need to add the following code at the beginning of your script: <?php ini_set(‘apc.enabled’, 0); // rest of your script here ?> This sets the apc.enabled configuration option to 0 for the current script, disabling the APC module … Read more

Here are four Linux commands to view page fault statistics: vmstat – This is a versatile command that provides information on system resource utilization, including page faults. The vmstat command reports the number of page faults in the “faults” column. vmstat procs ———–memory———- —swap– —–io—- -system– ——cpu—– r b swpd free buff cache si so … Read more

You can use the curl command to check if a website is using gzip or deflate compression. The curl command will send an HTTP request to a website and display the headers in the response. You can then look for the Content-Encoding header to see if the website is using gzip or deflate compression. Here’s … Read more

To set Cache-Control: public, max-age headers for caching purposes in Lighttpd, you need to modify the configuration file. The default configuration file is usually located at /etc/lighttpd/lighttpd.conf. To set the Cache-Control headers, add the following to your Lighttpd configuration file: $HTTP[“url”] =~ “\.(gif|jpg|jpeg|png|css|js)$” { # set cache-control headers for static files add_header “Cache-Control” “public, max-age=31536000, … Read more

To copy only hidden dot files and directories using rsync, use the –include option with a pattern to match hidden files, and the –exclude option with a pattern to exclude all other files: rsync -av –include=’.*/’ –exclude=’*’ source_directory/ destination Here’s what each option does: -a (or –archive) is equivalent to -rlptgoD and preserves almost everything … Read more