#1
Which command is used to display the current directory in Linux?
pwd
ExplanationPrints working directory.
#2
Which file system is used by default in most Linux distributions?
ext4
ExplanationFourth extended file system.
#3
What does the command 'ls -l' do in Linux?
Lists all files and directories in long format
ExplanationLong listing format.
#4
Which directory contains user-specific configuration files in Linux?
/home
ExplanationUser home directory.
#5
Which command is used to display the contents of a file in Linux?
cat
ExplanationConcatenate files and display on standard output.
#6
What does the command 'chmod +x script.sh' do in Linux?
Grants execute permission to the file
ExplanationChanges file permissions to make it executable.
#7
What does the command 'chmod 755 file.txt' do in Linux?
Changes file permissions to read, write, and execute for owner, and read and execute for group and others
ExplanationSets file permissions.
#8
Which command is used to search for a file in Linux?
#9
Which partition type is used for the Linux swap space?
SWAP
ExplanationSpecial type of partition.
#10
What is the purpose of the 'sudo' command in Linux?
To run a command with elevated privileges
ExplanationExecutes command as superuser.
#11
Which file is used to configure network interfaces in Linux?
/etc/network/interfaces
ExplanationConfiguration file for network interfaces.
#12
What is the purpose of the 'df' command in Linux?
Displays disk usage statistics
ExplanationShows disk usage.
#13
What is the purpose of the 'tar' command in Linux?
To create, view, and manipulate tar archives
ExplanationArchiving utility.
#14
Which command is used to display the last few lines of a file in Linux?
tail
ExplanationDisplays end of file.
#15
In Linux, what does the command 'uname -r' do?
Displays the release number of the kernel
ExplanationShows kernel release version.
#16
Which command is used to change the ownership of a file or directory in Linux?
chown
ExplanationChanges file ownership.
#17
What does the command 'echo $PATH' display in Linux?
Displays the contents of the PATH variable
ExplanationShows PATH environment variable.
#18
Which command is used to compress files in Linux?
gzip
ExplanationCompression utility.
#19
What does the command 'apt-get' do in Linux?
Installs software packages
ExplanationPackage management utility.
#20
Which command is used to create a symbolic link in Linux?
ln
ExplanationCreates links between files.
#21
What does the command 'grep' do in Linux?
Searches for a pattern in files
ExplanationSearches for patterns.
#22
What is the purpose of the 'cron' service in Linux?
To schedule and automate tasks
ExplanationTask scheduler.
#23
What is the purpose of the 'dd' command in Linux?
To create and copy disk images
ExplanationDisk copying utility.
#24
Which command is used to list all currently running processes in Linux?
ps
ExplanationProcess status.