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assign a variable in bash

#!/bin/bash
# Naked variables

echo

# When is a variable "naked", i.e., lacking the '$' in front?
# When it is being assigned, rather than referenced.

# Assignment
a=879
echo "The value of "a" is $a."

# Assignment using 'let'
let a=16+5
echo "The value of "a" is now $a."

echo

# In a 'for' loop (really, a type of disguised assignment):
echo -n "Values of "a" in the loop are: "
for a in 7 8 9 11
do
  echo -n "$a "
done

echo
echo

# In a 'read' statement (also a type of assignment):
echo -n "Enter "a" "
read a
echo "The value of "a" is now $a."

echo

exit 0
Source by www.tldp.org #
 
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Tagged: #assign #variable #bash
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