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Which of the following commands is used to list contents of directories?
Use the ls command to display the contents of a directory.
Use the ls command to display the contents of a directory.
See lessWhich symbol is used to separate more than one command in the same command line?
The semicolon ( ; ) character is used to separate multiple commands on a single line.
The semicolon ( ; ) character is used to separate multiple commands on a single line.
See lessWhich command is used to display a file contents in octal form?
The rm command The rm command is used to delete files. rm -i will ask before deleting each file. Some people will have rm aliased to do this automatically (type "alias" to check).
The rm command
See lessThe rm command is used to delete files. rm -i will ask before deleting each file. Some people will have rm aliased to do this automatically (type “alias” to check).
The agency that sits between the user and the UNIX system is called the
In Unix, the agency that sits between the user and the UNIX system is called the shell. The shell is a command-line interpreter that takes commands from the user and executes them.
In Unix, the agency that sits between the user and the UNIX system is called the shell. The shell is a command-line interpreter that takes commands from the user and executes them.
See lessWhich command is used to remove a file?
The rm command The rm command is used to delete files. rm -i will ask before deleting each file. Some people will have rm aliased to do this automatically (type "alias" to check).
The rm command
See lessThe rm command is used to delete files. rm -i will ask before deleting each file. Some people will have rm aliased to do this automatically (type “alias” to check).
Which of the following commands is used to update access and modification times of a file?
The touch command updates the access and modification times of each file specified by the File parameter of each directory specified by the Directory parameter.
The touch command updates the access and modification times of each file specified by the File parameter of each directory specified by the Directory parameter.
See lessWhich command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters?
In Unix, the command cat emp[! 0-9] is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric character.
In Unix, the command cat emp[! 0-9] is used to concatenate all files beginning with the string ’emp’ and followed by a non-numeric character.
See lessWhich of the following keys is used to move the cursor to the end of the paragraph.
End key is used to move to the end of a line in a document. Ctrl+End is a shortcut key that moves the cursor to the end of a document.
End key is used to move to the end of a line in a document. Ctrl+End is a shortcut key that moves the cursor to the end of a document.
See lessThe command which transcribes the standard input to the standard output and also makes a copy of the same in a file is
The tee command, used with a pipe, reads standard input, then writes the output of a program to standard output and simultaneously copies it into the specified file or files.
The tee command, used with a pipe, reads standard input, then writes the output of a program to standard output and simultaneously copies it into the specified file or files.
See lessThe Octal number to be given alogn with chmod command to make a file readable, writable and executable to the owner, readable and executable to group and others is:
For the owner to have read, write, and execute permissions (7 = 4 + 2 + 1). For the group and others to have read and execute permissions (5 = 4 + 1). So, the octal number to be given along with the chmod command to achieve these permissions is 755.
For the owner to have read, write, and execute permissions (7 = 4 + 2 + 1). For the group and others to have read and execute permissions (5 = 4 + 1). So, the octal number to be given along with the chmod command to achieve these permissions is 755.
See less