Find String in Files in Linux

To find some string within files in Linux, you can use this command grep -rnw ‘/your/path/’ -e “find this string” -r means recursive -n means line number -w means match the whole word 🙂

How to Append Date and Time to Log File in Linux

If we want to get detailed log report, we can store multiple log files with date and time information on the file name 🙂 We can do this command in Linux : your_command_here > /path_1/path_2/your_log_$(date +”%Y-%m-%d_%H-%M-%S”).txt

How to Delete Files in Directory in Linux

If you want to delete files within a directory in Linux, you can use this simple command rm -f /your/directory/* If you want to delete files and directories recursively within a directory in Linux, you can use this command instead 🙂 rm -rf /your/directory/*

Empty a File Using Linux Command

Today i received an e-mail notification from cpanel that a partition in my server is almost full. First i checked largest directories / files using this command : du -h –max-depth=1 /some/path Then i noticed that they were some log files which took space in my partition 🙂

How to Remove Directory and Subdirectories Recursively in Linux

Sometimes there is occasion where deleting files from Cpanel takes a very long time to finish. For example because there are too many files under a directory. In this situation we can use SSH to delete a directory and all files and subdirectories under that directory. We can use the command below. But be careful,… Continue reading How to Remove Directory and Subdirectories Recursively in Linux

How to Install PECL Memcache in WHM / CentOS

You can run these commands to install PECL memcache (not memcached). However, this memcache will work with memcached. wget http://pecl.php.net/get/memcache-3.0.8.tgz tar xvfz memcache-3.0.8.tgz cd memcache-3.0.8 phpize ./configure make make install Take note of the php extensions directory that memcache is installed in. Mine is: /usr/local/lib/php/extensions/no-debug-non-zts-20020429/ Then add this line to your php.ini extension=”/usr/local/lib/php/extensions/no-debug-non-zts-20020429/memcache.so”