ux Use a pipe to view all of your current environment variables with less, and
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In linux
Use a pipe to view all of your current environment variables with less, and what command did use for this?
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- Answer in linux grep command can be used for this purpose. The required command will be as follows, grep-r "txt*Please give me the answers for these question below: To upgrade Windows PowerShell to a newer version, we need to download and install this! To update the Windows PowerShell Help System, we should use this SwitchParameter with the Update-Help cmdlet because PowerShell only updates the help files once every 24 hours. If we want to find all cmdlets in the ActiveDirectory module, we should use this parameter with the Get-Command cmdlet to filter our query. Name two aliases for the Get-ChildItem cmdlet.What is meant by the expression “less is more” when applied to the use of the Linux commands more and less.
- Experiment with the following Linux commands(You can write a small program that allocates large amount of memory in the background while you run these commands) and Describe what they do(be as descriptive as possible): •How will you get the pagesize on your system?•What is “vmstat” command? What does it report?•What is the output of “cat /proc/meminfo”?•What does the output of “sar –B” tell you?What does the -3 option in the tail command do in Linux?What is the function of the ifconfig command, and how has it been replaced in modern distributions?
- Nearly all of the concepts presented in this chapter apply to all Linux distributions.However, different Linux distributions may use different default environment files. Bootyour Ubuntu Server Linux virtual machine and view the hidden environment files in yourhome directory. Which two files are used to store environment variables and aliasesfor each Ubuntu user by default? View their contents. Is there a /etc/profile and /etc/bashrcfile by default? If not, what are they called? View the contents of both of these files.Implement the following commands on Linux and explain the purpose of each command with the screenshot of the output. dir -a dir -A dir -F dir -l dir -h dir -r dir -S • find chmod duWhere can I get an explanation of the function of the repquota command in Linux? Explain. What is it about this command that differentiates it from quota?
- Write a vending machine program with the Linux Shell Script. There will be only 3 items that you can choose from. Each item will have a set price that you can choose. If a user input money, they can keep making purchases until they either have no money or they want their change back. You can only use the while, until and for loops. You can also use the if, continue and break commands. Towards the end of the transaction, it must show: what item was purchased and how much money has been returned back to the user.If you can, write about a few Linux traits. Is it necessary to specify these traits?Commands are passed to the command line of a Linux terminal in the format "\$COMMAND,PARAMETER1,PARAMETER2,...,PARAMETER5\r" i.e., the command begins with the identifying '$' symbol, followed by a command string, then a list of parameters separated by commas. A command can have up to 5 parameters, or no parameters. Parameters can be up to 5 characters in length. Commands end with a carriage return '\r'. Write a function void parse(char *input) that takes in Commands and parses them into a command string and an array of parameters. For the following Commands, print the command string and parameters of each:1. $GETNUM,1\r2. $GETSUM,2,3\r3. $LISTNUMS,10,300,-40\r4. $DONOTHING\r Expected outputs:1.Command string = GETNUMParameter[0]=1 2.Command string = GETSUMParameter[0]=2Parameter[1]=3 3.Command string = LISTNUMSParameter[0]=10Parameter[1]=300Parameter[2]=-40 4.Command string = DONOTHINGThis command has no parameters