Variables Revisited
Advanced Bash-Scripting Guide:
PrevNext

Chapter 9. Variables Revisited

Table of Contents
9.1. Internal Variables
9.2. Manipulating Strings
9.2.1. Manipulating strings using awk
9.2.2. Further Reference
9.3. Parameter Substitution
9.4. Typing variables: declare or typeset
9.5. Indirect References
9.6. $RANDOM: generate random integer
9.7. The Double-Parentheses Construct

Used properly, variables can add power and flexibility to scripts. This requires learning their subtleties and nuances.

PrevHomeNext
Beyond the BasicsUpInternal Variables
24 visits (2 today, 2 this week, 14 this month, 24 this year)
Uptime: 07:24:24 up 5 days, 11:14, 3 users, load average: 0.11, 0.10, 0.09
216.73.216.34 GET from server z.larrymurakami.com

Sunday, August 10, 2025 @ 7:24:24 AM
z.ServerAdmin@lam1.us