BASH Shell HowTo - Linux / Unix Q & A from nixCraft

Bash Shell: Find Out If a Variable Is Empty Or Not

last updated January 21, 2017 in BASH Shell, CentOS, Debian / Ubuntu, FreeBSD, Linux, Suse, UNIX

My shell script depends upon user input. How do I find out if a variable called $_JAIL path is empty under a Linux / Apple OS X / Unix like operating systems?

Bash Shell Script To Test For Empty Folder

last updated July 6, 2012 in BASH Shell

How do I check if a directory contains files? How do I find out if a directory contains files using bash shell under Linux or Unix like operating systems?

Linux / Unix: Find Hidden Directories, Files and Folders

last updated June 26, 2012 in UNIX

I‘m a new Unix user and trying to find the hidden directory called .movies but I do not know where it is on the file system. How do I find a hidden folder or directories under Unix like operating systems?

Unix / Linux Shell: Parse Text CVS File Separator By Field

last updated March 4, 2014 in BASH Shell, Linux, UNIX

I work for a small ISP (Internet Service Provider) and we are using Linux and Unix-like operating system with bash shell. I want to write a shell script to parse the csv file line by line. Then line must be parse again field by field. The sample input file is as follows:

example.com,username,groupname,homedir,md5password,permission,secondarygroup

I need to extract each of these example.com,username,groupname,homedir,md5password,permission,secondarygroup fields and passed to the different system utilities. How do I write a shell script to automate this task and use the bash shell to parse a text file?

nixCraft

nixCraft

Tag: BASH Shell

Bash Shell: Find Out If a Variable Is Empty Or Not

Bash Shell Script To Test For Empty Folder

Linux / Unix: Find Hidden Directories, Files and Folders

Unix / Linux Shell: Parse Text CVS File Separator By Field

Linux / Unix: Generate A MD5 String

HowTo: Iterate Bash For Loop Variable Range Under Unix / Linux

Linux: How To Copy a Folder [ Command Line Option ]