What command can be used to display the contents of a file that was compressed with a compression utility?

zcat
Z extension. uncompress – Uncompresses a compressed . Z file. zcat – Displays the contents of a compressed file.

What command looks for a Makefile?

The makefile is read by the make command, which determines the target file or files that are to be made and then compares the dates and times of the source files to decide which rules need to be invoked to construct the target. Often, other intermediate targets have to be created before the final target can be made.

Which option when used with the gzip command causes the compression ratio for files that have been compressed to be listed?

Terms in this set (25) When using the gzip utility, the -l option is also known as best compression and results in a higher compression ratio.

What option can be added to the dpkg command to remove a specific package from the system including any configuration files used by the package?

We already discussed how to remove a package using the dpkg command. You can also purge a package, a process which removes everything, including conffiles. This can be done using the -P command line option.

What is make command?

The make command invokes the execution of the makefile. It is a special file that contains the shell commands that we create to maintain the project. The makefile contains targets and commands for execution. It is not allowed to create more than one makefile. It is recommended to create a separate directory for it.

What is make in CMD?

make is a program that interprets a makefile and executes the commands in the makefile. But, what are those commands? If you look at your makefile you will see UNIX-style commands that are available in Linux, Mac OS X, or Cygwin but are not available in an off-the-shelf Windows system.

What is apt command?

APT stands for Advanced Package Tool. It is a set of core tools inside Debian and Ubuntu Linux system. You can use the apt command to install apps, delete or remove apps, keep Ubuntu/Debian server up to date and more. Apt work with dpkg command to install and update the system.

What options for the dpkg command can be used to list files that include a package?

dpkg command cheat sheet for Debian and Ubuntu Linux
Syntax Description
dpkg -l List all installed packages, along with package version and short description
dpkg -l {package} List individual installed packages, along with package version and short description

What is dpkg command in Ubuntu?

dpkg is the software that forms the low-level base of the Debian package management system. It is the default package manager on Ubuntu. You can use dpkg to install, configure, upgrade or remove Debian packages, and retrieve information of these Debian packages.

What is sudo command?

DESCRIPTION. sudo allows a permitted user to execute a command as the superuser or another user, as specified by the security policy. The invoking user’s real (not effective) user ID is used to determine the user name with which to query the security policy.

What is yum command?

The yum command is the primary tool for getting, installing, deleting, querying, and otherwise managing Red Hat Enterprise Linux RPM software packages from official Red Hat software repositories, as well as other third-party repositories.

How do I find apt-get packages?

To find out the package name and with it description before installing, use the ‘search’ flag. Using “search” with apt-cache will display a list of matched packages with short description.

What does the Whoami command do?

Displays user, group and privileges information for the user who is currently logged on to the local system. If used without parameters, whoami displays the current domain and user name.

What are bash commands?

Bash (AKA Bourne Again Shell) is a type of interpreter that processes shell commands. A shell interpreter takes commands in plain text format and calls Operating System services to do something. For example, ls command lists the files and folders in a directory. Bash is the improved version of Sh (Bourne Shell).

What is Linux su command?

switch user
su , on the other hand, is an acronym for switch user or substitute user. You are basically switching to a particular user and you need the password for the user you are switching to. Most often, the user account you switch to is the root account but it can be any account on the system.

What is the difference between the whoami and logname commands?

The whoami command actually shows you the “effective” user (euid). You can see that when we use sudo with whoami it returns root as the user. … The logname command simply prints the name of the current user to STDOUT, nothing else.

What is cp file1 file2 command?

cp file1 file2 is the command which makes a copy of file1 in the current working directory and calls it file2. What we are going to do now, is to take a file stored in an open access area of the file system, and use the cp command to copy it to your unixstuff directory.

What is the difference between the Who am I and logname commands?

When you have more than one concurrent login, it is easy to lose track of the login names or, in particular, the login name that you are currently using. Another variation of the who command, the logname command displays the same information as the who command. …