How to count words in a file without using wc command ?
To count number of words in a file, we can either use wc command, or use a loop or can use extended grep command. Lets see the easiest two approaches...
Month: March 2018
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How to perform temporary and permanent kernel parameter tuning in linux ?
In this post, we will look how to tune/change Linux kernel parameters temporarily or permanent. To change/verify the parameters we will use sysctl command. From its man page, we can...
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Default User Home directory in Linux and solaris ?
Do you know what is the default home directory of a user in Linux and Solaris ? In this post, we will look at the difference between default user home...
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Use of exec command in linux bash shell
In this article we will look at the usage of exec command in linux. Lets see an example to understand exec command usage. Usage of exec Command ### Check...
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How to create a custom user command in Linux quickly ?
Today we will check how to create a custom user command in Linux easily. Lets see the procedure step by step. The easiest way is to create a function and...
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How to get last command argument value in follow up command in Linux ?
In this post we will look how to get the last command argument value in the current command. For this, we will use a special bash bultin variable $_ Lets...
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Difference between nohup and &(ampersand) in linux ?
In this post we will look at the difference between nohup and &(ampersand) in Linux. As we know & (ampersand) is used to send any command execution to background and...