Linux-1 Week 4

What can be done with the 'Shebang'

• It's a command for on the prompt

• Shutdown your Linux System

• Controles the command interpreter in a script

• End a bash script

What is the difference between Archiving and Compression

• There is no difference

• Archiving: Combines multiple files into one

• Compression: Compression: Makes the files smaller

• Archiving: Makes the files smaller

• Compression: Combines multiple files into one

What is the most used compression-command in Linux

• 7zip

• tar

• gzip

• zip

How to unzip (decompress) a file in Linux

• decomp <filename>

• gzip -d <filename>

• gunzip <filename>

• uncomp <filename>

What command to use to create an archive

• arch

• zip

• pack

• tar

How to create a tar-ball name 'archive.tar' will all files with extention '.txt' (assuming that they exist)

• tar -xvf *.txt archive.tar

• tar -cvf archive.tar *.txt

• tar *.txt archive.tar

• tar -f archive.tar *.txt

Which of the following commands are pager-commands?

• head

• less

• more

• cat

How to search for a text string using the 'more-pager command'

• That is not possible, use less

• use '/'

• use 'f'

• use '!'

Correct command to display the last 25 lines of a file called 'textfile.txt'

• last -25 textfile.txt

• end -25 textfile.txt

• tail -25 textfile.txt

• cat -25 textfile.txt

What can be done with the pipe (|) command?

• run a second command only if the first one failed

• run a second command only if the first command was succesfull

• set an exit-code

• send the output of one command to another