by Satish Kumar | Feb 2, 2021 | BASH
This script is not limited to running only applications or services at startup, but to also start scripts on bootup (power on) of a system. For example, if your system boots up and you would like to apply several tweaks to the OS such as performance enhancements or...
by Satish Kumar | Feb 1, 2021 | BASH
In this script, we use a concept called file-in-file-out (FIFO), also known as pipes, to pass along a parameter to several “worker” scripts. These workers operate in parallel (in other words, mostly independent of the master process), read an input, and execute a...
by Satish Kumar | Jan 31, 2021 | BASH
Sometimes, waiting for a command to finish execution or ignoring commands until completion might not be considered a solid practice in scripting, though it does have applications: Where commands take variable lengths of time to complete (for example, pinging a network...
by Satish Kumar | Jan 30, 2021 | BASH
Another mechanism or component programs and scripts often use is called a lock file. It’s usually temporary (it resides in /tmp) and is sometimes used when multiple entities rely on a single source of data or need to know that other programs exist. Sometimes, it’s...
by Satish Kumar | Jan 29, 2021 | BASH
You have probably pressed Ctrl + C or Ctrl + Z without knowing what was occurring—it’s just like pressing Ctrl + Alt + Delete in another OS, right? Well, in one regard, yes—it is a signal, but the action itself is very different in Linux. A signal at the hardware...
