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Linux - Case esac statement
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now here we are going to talk about your
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case ISA case ASIC is again and we can
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say we can use in spite of using if-else
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statement like if our program is very
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big and we have lot of confusion while
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creating on nested-if case statement so
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we can go for case inside where we can
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use this case ik e six fate statements
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when we do not have officiant resources
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or we can say efficient statement where
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we have repeated with your F L self so
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we can go for State case or we can say
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case e SEC's very generally act as your
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switch cases where you will have the
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options what you need to select so
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automatically like the previous example
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I have taken you have a virgin on which
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two options when you select non-base
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then you will get the list of non wages
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you have then you can select one of it
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so you will be having a different cases
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different statement which works
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individually and just we need to use
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this particular case define a case so
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that ultimately automatically the
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decision will be taken individually so
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you know this will create an easy
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programming for you while you are
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creating any particular codes or any
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particular scripts and easily you can
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maintain the huge or bigger programs as
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well which have a lot of condition so
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let us check how we can use case e SEC
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in spite of your if-else statement so
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here we are going to use cases SEC which
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is much you know efficient to use if
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either then using your nest set you know
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decision making statements so here I'll
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be using and case statement that's
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reason I'm just going to define the name
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as K start as such and here I am going
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to add a comment here we will be using
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case is SEC
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statement which would be much better to
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use so I'm going to create a program
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where I'm going to fetch a any entry
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from the user enter something
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like and
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this I want to reach in a variable
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called s in okay the same way I'm going
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to get the value from the user and I
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want that it should be accepted into the
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variable a now I'm going to start my
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case I'm going to start the case with my
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variable a into bed I'm going to add a
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different kind of cases like my case can
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be started with your for example I just
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want to check what the user has entered
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so I'll be starting with a two set in a
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small case and this is the case one we
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are going to start so in case one when
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you add any particular value into small
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letters so you should get the message
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you have entered the alphabet or the you
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know input and small case right once
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done with that what you will be doing is
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to come here and this case by giving
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double semicolons once done with that
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we'll start with the other case
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now here I'm going to add I'm going to
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enter the value and capital case echo
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you have I need to define
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yes and I'm opening the case where I can
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define the case output else you have
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enter the input
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capital case select so we can define
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such a way
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post that again I need to close this
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case
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and start with e under keys now for
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example now here I'm going to add the
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value from 0 to 9
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and start the kiss and here I can define
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you have entered and put in number
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format right so this is the Keaney case
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we have added I want to end it so I can
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end it in such a way in the next case
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which we are going to start right you
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know I can define the question mark so
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like it will show you whether you have
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entered any special characters so I can
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define you have entered of input s
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special characters right again end it I
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want to get again whatever the things
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you have entered if you have entered
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more than one value so you will be able
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to get the value printed and you should
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get echo you have entered more than one
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value so you can take this example and
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this and again I'm going to end the same
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using the come on the sack done with
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that save the file run the case file I'm
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going to enter
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okay same way again I'm going to run the
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file here small I'm going to turn number
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so just showing you entered inputting
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their number format same I'm going to
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run a file I've entered in a percentage
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that is showing you you have entered a
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special character now the same file I'm
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going to run I'm going to enter small e
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that is showing you you have entered
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into the small case same thing if I
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enter the file and more than one
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character I am going to add like for
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example and we're going to add number
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one such showing you how you have
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entered more than one value it's time
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right so this is what exactly how we can
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add different cases so it is easy for
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you
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do you know create multiple parameters
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and the decision making is very easy as
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well as you know the command
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configuration and the configuration of
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complete cases are attained better than
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the other cases so this is what exactly
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we have seen like how we can use the
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cases how we can you know get the inputs
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so these are the cases which have
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created so you can perform different
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cases with taking different examples and
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check how we can create here so the best
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example you can also take and create a
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menu card of Animoto so you'll have
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multiple options whether you want the
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whole rings and you know when you define
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a cool ring name or you define the food
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items names for that you can add the put
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items into the variables so this is what
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exactly or we have seen into this
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complete East KC sex statement where we
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have used a decision making done by this
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so into the next video I'm coming up
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with your more you know advanced
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programming into these shells which is
8:24
called as a loops
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