How do I assign printf command result to a shell variable under Unix like operating systems?
The printf command syntax is as follows:
printf "FORMAT" var
var=$(printf "FORMAT" var1)
var="$(printf "FORMAT" var1)" |
printf "FORMAT" var
var=$(printf "FORMAT" var1)
var="$(printf "FORMAT" var1)"
Examples
Type the following command:
dir="/home/httpd"
printf "%s\n" $dir |
dir="/home/httpd"
printf "%s\n" $dir
To store result to a variable called j, enter:
dir="/home/httpd"
j=$(printf "%s" $dir)
echo "$j"
printf "%s\n" $j |
dir="/home/httpd"
j=$(printf "%s" $dir)
echo "$j"
printf "%s\n" $j
Posted by: Vivek Gite
The author is the creator of nixCraft and a seasoned sysadmin and a trainer for the Linux operating system/Unix shell scripting. He has worked with global clients and in various industries, including IT, education, defense and space research, and the nonprofit sector. Follow him on Twitter, Facebook, Google+.
