How to Hide a File in JPEG under Linux Shell?
As we know, the JPEG can be appended data at its end without causing troubles in displaying its image content. Under Linux OS, we can use the following two …
Category: BASH Shell
How to Display Directories Only Under Linux Shells?
We know that the ls command under Linux displays the list of files and directories under the current directory. If you want to display the directories by excluding the …
How to Valid IPv6 Addresses using BASH and Regex ?
IP Addresses consist of two kinds. The IPv4 and IPv6. The IPv4 is 32-bit that contains 4 bytes. For example, X.Y.Z.U where four digits (0 to 255) are separated …
Linux BASH Coding Exercise – Transpose File
Given a text file file.txt, transpose its content. You may assume that each row has the same number of columns and each field is separated by the ‘ ‘ …
Creating UI Controls under Linux Shell Console using whiptail Utility
Under Linux Shell Console, you can create UI dialogs based only on Text Characters. The whiptail allows to create common UI components under Console. The UI are advantageous in …