1. Write Commands: The command chmod ugo-wr+x file1 changes the permission of file1. How do you use the chmod command in octal notation to have the same result?   2. Device a shell command to search for a file named foo starting from the root directory, please send the output to a file called fooResult and the errors to /dev/null. 3.  What is the command used to limit the default permissions for a new file or a new directory? Please write the command to set the default file permission to -rw-------and default directory permission to drwx--x--x

develop a new Physical File called STUMAS (Student Master) with Record Length 30 in your Library, use the command CRTPF and prompt it by using F4 - develop 5 records in the File using STRDFU Option 5 or running upddta command against the file - develop new MenuA and add 4 options in it.  One of the options should be to take you to MenuB, the other 3 options can by anything of your choice - develop new MenuB and on this Menu have an option for Adding/Changing/Deleting recourds from STUMAS, another option for Runqry against STUMAS and third option to go back to MenuA - In the end shown your library and grant me *ALL authority.  You can make by using the wrkobj yourlibrary command and using option 2 edit to grant my id BHATTI full authority

Write the command that will locate all files that are larger than 10 megabytes in size, and copy each one to the directory "/overflow".

hi so fir this i used cp /usa/clause/roster.txt / intro but it doesn't work could you please tell me what I am doing wrong

Create a bash script to manage users. The script will take three script arguments: an input filename of users, a group name, and an operation flag. The input filename of users to manage will be a text file with a list of users to add to the system or remove from the system. Each line in the file will contain a User ID and an encrypted password, which are separated by a space character as a delimiter. Your input user file should have at least five users. You will need to encrypt your passwords via the command line using openssl and place the generated password in your input user file. Write a script that adds and removes users to a Linux system using the input file provided to the script. The users should be added to group provided in the script argument. You will want to check if the group already exists. Use an operation of -a to signify to add the users to the system and an operation of -r to signify removing the users from the system. When adding users, make sure you create the…

Which of the following is opening a file with a raw path?   a. outs = open(“file.txt”,”w”)   b. outs = open(r”c:\acc\file.txt”, “a”)   c. None of the above   d. ins = open(“newfile”, “r”)

Please answer this ques. i am lost

Q4.One of the file space allocation mechanisms is the most convenient for random access files.Which mechanism is that?

After typing the ls –F command, you see the following line in the output:  -rw-r-xr- - 1 user1 root 0 Apr 29 15:40 file1What does this mean?*       a. User1 has read and write, members of the root group have read and execute, and all others have read permissions to the file.       b. Members of the root group have read and write, user1 has read and execute, and all others have read permissions to the file.       c. All users have read and write, members of the root group have read and execute, and user1 has read permissions to the file.       d. User1 has read and write, all others have read and execute, and members of the root group have read permissions to the file.

1. In an earlier assignment, you created a fileAsst directory containing several files. Give a command that will create a file named listing.dat, in your current (commandsAsst) directory, containing a list of the names of all the files in your fileAsst directory. The listing must not include dates, file sizes, or any information other than the names. 2. Someone has decided that the function sequentialInsert, declared in -cs252/Assignments/commandsAsst/project/arrayops.h, should be renamed orderedInsertion. Give a command to produce the altered version the header file, saving it as ~/UnixCourse/commandsAsst/arrayops.h (Something to think about: Why would the same approach not work well for changing the variable name i to i0?) 3. Sometimes programmers propose changes to an existing software definition and need to know what other code could be affected by the change. Suppose that you are a programmer who has proposed a change to the C/C++ data type known as "timespec". You know that there…