test command HowTo - Linux / Unix Q & A from nixCraft

Check if a directory exists in Linux or Unix shell

last updated May 21, 2019 in BASH Shell, KSH Shell, Linux, UNIX

I need to check if a directory exists or not, within a shell script running on Linux or Unix-like system? How do I check if a directory exists in a shell script?

HowTo: Check If a Directory Exists In a Shell Script

last updated May 2, 2017 in BASH Shell, CentOS, Debian / Ubuntu, FreeBSD, KSH Shell, Linux, Suse, UNIX

How do I check if a directory exists in a shell script under Linux or Unix like operating systems? How can I check if a directory exists in a shell script on Unix-like system?

Bash Shell Number Comparison

last updated January 29, 2014 in BASH Shell, Linux, UNIX

I am new Unix/Linux user. I am learning shell scripting. How can I compare numbers in bash shell?

Bash Shell: Check File Exists or Not

last updated April 20, 2012 in BASH Shell

How do I test existence of a text file in bash running under Unix like operating systems?

Bourne Shell Exit Status Examples For Linux and Unix

last updated December 4, 2018 in BASH Shell, Linux, UNIX

Can you explains and provide us “Bourne Shell Exit Status Code” examples?

Explain Usage Of The Linux Left Bracket /usr/bin/[ Command

last updated November 23, 2018 in BASH Shell, FreeBSD, Linux, UNIX

I see [ command in /usr/bin directory. What is the /usr/bin/[ command used for?

BASH Shell Test If a File Is Writable or Not

last updated December 30, 2019 in AIX, BASH Shell, CentOS, Debian / Ubuntu, Fedora Linux, FreeBSD, HP-UX Unix, Linux, OpenBSD, Solaris-Unix, Suse, Ubuntu Linux, UNIX

How can you test if a file is writable under UNIX / Linux bash shell scripting and programming language?