101 Linux Commands

Some of these commands require elevated permissions (sudo) to run.

101

Linux Commands

!!Execute the previous command used: 
! cd ..Move to parent (higher level) directory. 
cd ~Go to home directory 
 !sExecute a previous command starting with a specific letter.
cpcopy or backup a file cp nginx.conf{,.bak}
cd –Toggle between current directory and last directory
cd $HOMEGo to home directory 
cdGo to home directory 
chmod 755 Set permissions to 755. Corresponds to these permissions: (-rwx-r-x-r-x), arranged
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Data strutsit ja alko

Flowcharts are visual diagrams that represent an algorithm using various shapes and arrowsto describe the steps involved. On the other hand, pseudocode is a text-based representationof an algorithm that uses a high-level programming language-like syntax. Both have their own benefits, and it depends on the person’s preference and the problem athand to choose which one to use. For example, flowcharts are more visually appealing andeasier to understand for non-programmers, while pseudocode is more

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Missing Vocabs: 

Most common approach: load-store architecture in processing

Registers: Tiny local memory (“scratch space”) on proc. into which instructions and data are copied

Concepts of Memory Management: 

❖ Caching: Buffering a copy of bytes (instructions and/or data) from a lower level at a higher level to exploit locality ❖ Prefetching: Preemptively retrieving bytes (typically data) from addresses not explicitly asked yet by program ❖ Spill/Miss/Fault: Data needed for program is not

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basin→  a container for water, for washing the hands and face

bear→  to suffer pain or unhappiness

Bible→  the holy book of the Christian religion

biscuit→ a flat, thin, dry cake

boarding school→ a school where pupils live

bully → a person who hurts or frightens weaker people on purpose

charity→ giving money, help, etc. to people in need (e.g. in the old days to a school for poor children)

Christian→ a person who believes in the teachings of Jesus Christ

churchyard→ ground near or belonging

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Geography of Britain: Bristish isles: group of about 5000 islands off the northwest cost of mainland Europe. The highest island is Great Britain which consists of England, Wales and Scotland. The next island is Ireland, which is made up of northern Island (Ulster) and the Irish Republic (Eire). Great Britain and Northern Ireland form the United Kingdom.

The United Kingdom: Great Britain is a geographical expression, the United Kingdom is a political expression. The British Isles today are shared

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Are you ever unhappy with the way the world is going? Many people complain but do not do anything to change it. In Spain and in many other countries, women get less money than men doing the same job. In my opinion everybody should have the same rights./Since the begining of time, women have been treated as inferior human beings. In the early years they were considered as mere objects, whose only utility was to raise the children and to do all the house keeping, while the man was working, or having

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