Save my name, email, and website in this browser for the next time I comment. How to generate a random string in a profile alias Ask Question Asked 7 years, 10 months ago Modified 7 years, 10 months ago Viewed 2k times 2 I have an alias in my server's /etc/profile which generates a random directory on command, like this: alias rdir'mkdir -p. Your email address will not be published. Using these methods, you can generate random strings for various applications, such as password generation and token authentication. To generate a random string (without special characters): get a random string (default 15). You can choose the method that best suits your needs. I am attaching a screenshot of hits that came up for me in response to the above search string. These methods include using the $Random, /dev/urandom, openssl, and uuid commands. And echo prints a newline character to the console after the random stringĬonsidering the above solutions, we have explored four different methods to generate random strings in Bash.This part | head -c 20 of the command pipes the output of the sed command to the head command, which takes the output’s first 20 characters and prints them to the console.The g flag means to do this globally (i.e., for all occurrences of hyphens in the output). How can I do that It generates 10 characters random string. This part | sed 's///g' of the command pipes the previous command’s output to the sed command, which searches for any hyphens in the output and replaces them with nothing (i.e., removes them). How to create a random string in Bash I am trying to use the Bash variable RANDOM to create a random string that consists of 8 characters from a variable that contains integer and alphanumeric digits, e.g., varabcd1234ABCD. The cat /proc/sys/kernel/random/uuid command generates a random UUID (Universally Unique Identifier) using the kernel’s random number generator and outputs it to the console.
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