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
145 visits (2 today, 21 this week, 31 this month, 145 this year)
Uptime: 15:29:35 up 21:17, 4 users, load average: 1.22, 0.89, 0.56
216.73.216.248 GET from server z.lam1.us

Saturday, November 14, 2026 @ 3:29:35 PM
z.ServerAdmin@lamurakami.com