what do the following shell commands do
1) rm Project*
2) ls File[0-9][0-9]
3) rm [A-Z]???
1)rm is a command used to delete the files
This removes the file names starting with Project(like Project1,Projectkjh,Projectwer)
2)ls is used to display all the files.This displays the files name starting with File and after that it should have 2 numbers like (File12,File43,File27,File87) .
3)? tells 1 character to be have in that place like(a2U,dRy) like it has filename like first character is any A-Z after that it has any two characters
what do the following shell commands do 1) rm Project* 2) ls File[0-9][0-9] 3) rm [A-Z]???
Revision Question 3 on Linux. Please explain the shell script commands in the context of post execution. You have just logged in and have a directory called "novel" in your home directory containing the following files: chapter1.docx chapter2.docx chapter3.docx draft.pdf save where "save" is itself a directory and contains the files Attributes.txt draft.pdf.1 draft.pdf.2 draft.pdf.3 indexA.txt indexB.txt list1.txt list2.txt a) Describe the results you would expect when executing the following shell commands: i) ls novel/save/*A* ii) ls novel/*r[23]* iii) rmdir...
What do the following Unix/Linux commands do? Is: rm: man: ifconfig:
Please provide screenshots of the commands. 1. ls – list directory contents $ ls $ ls -l ______________________________________________________________________ $ ls -alg ______________________________________________________________________ 2. $ which echo ______________________________________________________________________ 3. $ whereis echo ______________________________________________________________________ 4. $ file <output from procedure 5> ______________________________________________________________________ alias – short cut command to a longer command $l $ alias l=”ls -alg" $l ______________________________________________________________________ $ unalias l $l ____________________________________________________________________
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Describe what each of the following commands do rm /tmp/f mkfifo /tmp/f
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Project 1: Implementing a Shell 1 Overview In this individual project you will have to design and implement a simple shell command interpreter called mysh. The basic function of a shell is to accept lines of text as input and execute programs in response. The shell must be able to execute built-in commands in a process different from the one executing mysh. 2 Requirements When first started, your shell should initialize any necessary data structures and then enter a loop...
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please explain and do in matlab
Problem 3. Consider the function f(x) e cos(2r). (1) Sketch its graph over the interval [0, m) by the following commands: (2) Using h = 0.01 π/6 in [0, π]. The commands are: to compute the difference quotient for z And the difference quotient is: ( 6 (3) Using h-0.01 to approximate the second derivative by computing the difdifquo for in [0, π). The commands are: And the difdifquo is:
Problem 3. Consider the...