Question

1) Which Linux command to set the permission ‘x’ to user, ‘rw’ to others and ‘rwx’ to group for the file launcher? A. chmod 176 launcher C. chmod 167 launcher B. chmod 671 launcher D. chmod 166 launcher

Answer 1

Explanation:

User, Group and Other. Linux divides the file permissions into read, write and execute denoted by r,w, and x. The permissions on a file can be changed by 'chmod' command which can be further divided into Absolute and Symbolic mode. The 'chown' command can change the ownership of a file/directory

Answer 2

Option C) chmod 167 launcher

chmod 167 launcher  Linux command to set the permission ‘x’ to user, ‘rw’ to others and ‘rwx’ to group for the file launcher.

• On Unix-like operating systems, each file has a set of flags attached to it that specify who can access it and how. File permissions, or "modes," as in "mode of access," are the names given to these indicators. "Change mode" is the meaning of the command name chmod. It limits the methods of accessing a file.
• A Linux or Unix command to delay for a predetermined period of time is /bin/sleep. The calling shell script may be stopped for a predetermined period of time.
• Take a 10-second break or a 2-minute break from execution, for instance. In other words, the sleep command stops the following shell command's execution for the specified amount of time.

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