a BASH command that converts the shell variable LOCALHOST into an environment variable

Please help me with the linux commands please?

Please help with this solutions for me to get the scripts?

Given a linux file mode (permissions) as an integer, return the permission string that the mode represents. Example 1: mode = 511 511 == Ob111111111 permissons = 'rwxrwxrwx' Example 2: mode = 424 424 == ob110101000 permissions = 'rw-r-x---' def perms(mode): pass

IF YOU DONT KNOW HOW TO BASH SCRIPT IN LINUX THIS DOESNT APPLY TO YOU.  anybody who knows linux can you help me, Write a script to automate the creation of new users and groups, i have this so far but the groups isnt working. I NEED HELP MAKING THIS WORK. HERE IS MY SCRIPT. #!/bin/bash​ ​ #location of txt with usernames ​ userfile=./users ​ ​ #location of txt with groupnames ​ groupfile=./groups ​ ​ #extract usernames ​ username=$(cat ./users | tr 'A-Z' 'a-z') ​ ​ #define default password for usernames ​ password=ch@ng3m3! ​ ​ #run loop to add users ​ for user in $username ​ do​     useradd $user ​     echo $password | passwd --stdin $user ​     groupadd -f $groups​ done​ ​ #extract groupnames ​ groupname=$(cat ./groupnames | tr "A-Z' 'a-z') ​ ​ For groups in $groupname ​ do​     groupadd -f $groups​ done​ ​ #read total users processed with script ​ echo "$(wc -l ./users) users have been created" ​ tail -n$(wc -l ./users) /etc/passwd ​ ​ #read total groups processed with script​ echo…

Please help convert this script to what can run on Windows PowerShell:                                                                                                               #!/usr/bin/env bash

                                                                                                                                                                                  scriptDir="$(dirname "$0")"

                                                                                                                                                                    file="$scriptDir/file-received.json"
                                                                                                                                                               topic="ws.wsp.edi-file.processing.member.parsed"

                                                                                                                                                    kcat \…

Write a BASH command to assign the string "/usr/share/data" to an environment variable called DATADIR.

Write a bash script to receive as input the username (your first name) and password from the keyboard. Set the password as ‘secret’. If the username and password matches then the output to be displayed is “valid user”, otherwise display the output as “invalid user”   i am a beginner ,  i am trying to display the output and is not working.   Thank you.

In linux code:  Is [] bracketed expression used in shell scripts under /etc/init.d ? Write a cmd line to evaluate this. Another way to phrase the above question is below.Display all lines in all files in /etc/init.d which contains the pattern [] for test cmd

Assume that you want to build an alias. When you type del you want the shell to run rm -i. What would you type to create this alias? a. alias del rm -i b. Calias del rm -i c. alias rm -i del d. Calias rm -i del