Linux File Test Operators Explained | Compare Files with -e, -f, -nt, and More!
Want to check if a file exists, is readable, newer than another, or executable in Linux? In this video, you'll learn file test operators like -e, -f, -d, -x, -s, -nt, -ot, -w, -r, -O and -G — all with practical examples!
These are essential for Bash scripting and everyday file handling tasks on a Linux terminal.
Supplements:
Numeric Comparison → • Numeric Comparison in Shell Script | -eq, ...
String Comparison → • String Comparison | equality, inequality, ...
testing a condition → • if test and if [ ] for testing a conditio...
if-then-else Statements → • if-then, if-else, nested if and if-elif-e...
Exiting The Script → • Exiting a Script : $?, exit, and Modulo 25...
Performing Maths → • performing maths Using expr, $[], and bc ...
Command Substitution → • Command Substitution in script under 2 mi...
Using Variables in Bash → • Environment vs User Variables in 3 Minutes...
Creating Your First Script File → • Create & Run Your First Script in 2 Minute...
🕒 Timestamps:
00:00 - Introduction
00:18 - -e: File exists and -d: Is a directory
03:00 - -f: Is a regular file and -r: Is readable
04:00 - -w: Is writable
05:04 - -s: Is empty
05:40 - -x: Is executable
06:10 - -O: Owner and -G: Group
07:10 - -ot: Older than and -nt: Newer than
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