Calendar Time Under Linux The calendar time is the number of seconds since January 1, 1970 00:00:00 UTC, which is the Epoch for keeping time in Linux. Continue Reading
hwclock, the hardware clock query and set program The hardware real time clock is a part of computer's hardware, powered by a battery and keeps on running even when the system is off. Continue Reading
anacron Anacron runs jobs periodically, that is, once a day, week or a month. Anacron works even if the computer is switched off for some time. Continue Reading
cron cron is a daemon that executes programs for users at predefined times. cron works on the basis of crontab, which is a text file. Continue ReadingBacking up your Drupal site To backup a Drupal site, website root directory and database dump are copied to a local server. The backup commands are explained. Continue Reading
Moving a Drupal site to a new host Moving a Drupal site to a new host involves backing up the MySQL database and the web-site root directory and storing these on the new host. Continue Reading
rsync rsync is a file synchronization tool for making that the destination files become an exact replica of corresponding files at the source. Continue Reading
vi text editor in Linux vi is a popular text editor that has been available with Unix systems since a long time. One can edit files fast by using vi. Continue Reading
How to build programs using the make command make is a utility for building programs. make concepts, predefined and automatic variables, implicit and pattern rules are explained. Continue Reading
Using the make utility to build software (Primer) A tutorial for building programs using the make utility. makefile structure, prerequisites, phony targets and variables are explained. Continue Reading
Starting Linux services with init scripts A Linux system provides many services. An init script for a service tells when that service should be started and when it is to be stopped. Continue Reading
Understanding the GNU Build System The GNU Build System for generating the scripts and makefiles for building and installing a GNU software package is explained. Continue Reading
Using diff and patch commands diff is a program for finding differences between files. patch applies the diff output to the original file(s) to get the second. Continue Reading