Tag: operating systems

The "shell" programmable command-line interpreter, the primary user interface

switch holder command

Select holder

None of the above

su scriptname

sh scriptname

ls scriptname

cd scriptname

display the list of files and directories present

display the contents of a file

display the list of files present

display the list of directories present

copy files and folders from one location to other location

creates a process

creates a process id

moves files and folders from one location to other location

Resource Management

deletes files and folders

deletes files

deletes folders

Grants execute permission to owner,group and others

Grants write permission to owner,group and others

Grants read permission to owner,group and others

Grants All permissions to owner.group and others: 4 (read) + 2 (write) + 1 (execute) = 7

shift $2

shift + 2

shift 2

shift * 2

Print nothing for differing files; return exit status only.

Print the byte number (decimal) and the differing byte values (octal) for each difference.

Compares the given 2 fils and writes in a ouput file

Compares the given 2 fils and displays the result

Copy and print the contents

Preserve the characteristics of the source_file. Copy the contents, modification times, and permission modes of the source_file to the destination files.

Copy and purges the files

All of the above

none of the above

Checks for the existence of a directoy

Checks for the existence of a file

Checks for the existence of a file/directoy