I have a doubt. When i declare a value and assign to some variable, I don’t know how to reassign the same value to another variable. See the code snippet below.
#/bin/sh #declare ARG1 to a a=ARG1 #declaring $a to ARG2 ARG2=$`$a` echo "ARG 2 = $ARG2"
It should display my output as
ARG 2 = ARG1
…but instead the actual output is:
line 5: ARG1: command not found ARG 2 = $
To assign the value associated with the variable
dest to the variable
source, you need simply run
For example, to assign the value associated with the variable
arg2 to the variable
a=ARG1 arg2=$a echo "ARG 2 = $arg2"
The use of lower-case variable names for local shell variables is by convention, not necessity — but this has the advantage of avoiding conflicts with environment variables and builtins, both of which use all-uppercase names by convention.
Answered By – Charles Duffy