What is wrong with the following Linux chmod command, given that file.txt exists in the current directory and the user is user1? > ls -l file.txt -rw-r--r--1 user1  group1 325 Dec 8 11:49 file.txt

The aim of this lab is to familiarize yourself with reading and processing directories aswell as extracting file attributes using the stat() system call. You are essentially writingyour own version of the long format of the ls command. You will need to customize youroutput to match the following specifications: -o: specifies the minimum age of the files (modification timestamp) to be listed fromthe target directory. The -o argument will be followed by an integer (as a separate parameter to make things easier if you wish). This integer will represent the minimumnumber of days old the files can be in order for them to be included in your listing.As an example "-o 3" passed as arguments would mean: list all files that have beenmodified more than 3 days ago (from the current system time).

Provide a minimal Linux shell command which will run a program called exam.py, located in your present working directory?   Which Python keyword marks a code block which needs handling of run-time errors   Provide a minimal Linux shell command which will add the execute permission (for the file owner) to a Python program called bye.py, located in the present working directory   What is the status code for a Python program indicating normal program exit   What is the Python keyword used to indicate a user-defined function   What is the Python keyword used to delay program execution indefinitely

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find The find command takes a pattern as a command-line argument and recur- sively searches through directories to find a filename matching that pattern. It should print a relative path starting with "./" for every file/directory that matches. For example, running ./find 1s.c from within the hw2 directory should print ./1s.c. If run from the parent directory, the output would be . /hw2/1s.c. There may be multiple matches. If we run ./find .c from within the hw2 directory, we should see: ./find.c ./1s.c ./tree.c The output does not need to be sorted. If nothing matches, it shouldn't print anything. Pattern matching should be case sensitive.