Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Convert to case statements from if/elif

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Convert to case statements from if/elif
Prev   Next
# 1  
Old 05-20-2014
Convert to case statements from if/elif
Hello, I wrote the case on code but it mistakes. I am not sure.

If/elif code:
Code:
#!/bin/ksh
you=$LOGNAME

hour=`date | awk '{print substr($4, 1, 2)}'`

print "The time is: $(date)"

if (( hour > 0 && $hour < 12 ))

then

     print "Good morning, $you!"

elif (( hour == 12 ))

then

     print "Lunch time!"

elif (( hour > 12 && $hour < 16 ))

then

     print "Good afternoon, $you!"

else

     print "Good night, $you!"

fi

Change Case code:

Code:
#!/bin/ksh

you=$LOGNAME
hour=`date | awk '{print substr($4, 1, 2)}'`
print "The time is: $(date)"

case $hour in

(hour > 0 && $hour < 12 ) echo "Good morning, $you!";;
(hour == 12 ) echo "Lunch time!";;
(hour > 12 && $hour < 16 ) echo "Good afternoon, $you!;;
echo "Good night, $you!";;

esac

Did I mistake this the case?

Thanks,
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

To convert Lower case to Upper Case

There is a script where we pass the parameter in lower case: say: . ./scriptName pArameter #!/bin/ksh echo "`date` Entering $0 Reloading the $1 table " mname1=$1 (code to login MYSQL Database) Truncate table $mname1; exit ! Since now there is a limitaion of MYSQL that it accept... (5 Replies)
Discussion started by: ambarginni
5 Replies

2. Shell Programming and Scripting

If, elif, else statements help

I am in need of some help. I am not an advance scripter or programmer, I have novice knowledge. I cannot get a script to work as expected. The script basically does an FTP (which I have work perfectly) and writes to a log. However, I want the script to echo "Not Connected" if the FTP fails to... (2 Replies)
Discussion started by: anthonyon
2 Replies

3. Shell Programming and Scripting

Not able to exit from case statements

Hi all, I wrote the following simple shell script to perform addition, subtraction, multiplication and division. In the below program, i am not able to exit from the script Shell Script ----------- #!/bin/sh bgcal() { cal="" echo "Enter the Option Number: \c" read cal if then... (3 Replies)
Discussion started by: uxpassion
3 Replies

4. Shell Programming and Scripting

usage of case statement in place of IF elif...

Hi, I need to carry out the back up of the data if exists...(file size not equal to zero) i tried in this way but it is not successful....where am making the mistakes? and if possible can i use case syntax in place of "if" #!/bin/ksh filename=`TZ=CST+24 date +%Y%m%d` ZERO=0... (3 Replies)
Discussion started by: aemunathan
3 Replies

5. Shell Programming and Scripting

Script to Convert Upper case to Lower case

Hi All I have a script which extracts values from a Database (A persons name) and puts it into a variable in my script IE: $NAME However the Value in the DB is all in uppercase and contains the users first name and last name EG: > echo $NAME GRAHAM BOYLE > What I need is only the... (7 Replies)
Discussion started by: grahambo2005
7 Replies

6. Shell Programming and Scripting

convert upper case to lower case in ascript

I have a package to install and the installation script which does it . The files/directories names in the script are all lower case but the actual package has everything in upper case - file names, directories . I don't want to rename directories and files in the package - it has a lot of them . ... (2 Replies)
Discussion started by: vz6zz8
2 Replies

7. UNIX for Dummies Questions & Answers

How to combine case statements

Hi, I need to change military time to regular time. I know to use case to indicate whether a.m. or p.m. as follows: case "$hour" in 0? | 1 ) echo a.m.;; 1 ) echo p.m.;; * ) echo p.m.;; esac My question is how do I add the hour and minute... (2 Replies)
Discussion started by: karp3158
2 Replies

8. Shell Programming and Scripting

how to convert value in a variable from upper case to lower case

Hi, I have a variable $Ctrcd which contains country names in upper case and i want to convert them into lower case. I have tried so many solutions from already existing threads but couldn't get the correct one. Can anybody help me with this..... Thanks a lot.. (2 Replies)
Discussion started by: manmeet
2 Replies

9. Shell Programming and Scripting

Problem with my case statements

Hi there, Im having some problems with this function, I pass two arguments to the function $1 $2 (Arguments are month and date inputted by the user) for some reason the case always fails... however in the cases defined below where it shouldnt fail the result is: if it fails with input... (6 Replies)
Discussion started by: Darklight
6 Replies

10. Shell Programming and Scripting

case statements

i need to use a case statement to do something when the user enters nothing at the prompt. i know about the if statement and that isnt' what i'm interested in using for this. i want to use case. heres the scenerio. a program asks a user for an input. i want to use a case statement to... (1 Reply)
Discussion started by: Terrible
1 Replies
Login or Register to Ask a Question

LEARN ABOUT DEBIAN

bup-margin

bup-margin(1)						      General Commands Manual						     bup-margin(1)

NAME

       bup-margin - figure out your deduplication safety margin

SYNOPSIS

       bup margin [options...]

DESCRIPTION

       bup margin  iterates  through  all  objects  in	your  bup repository, calculating the largest number of prefix bits shared between any two
       entries.  This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.

       For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45.  That  means  a  46-bit
       hash  would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
       its first 46 bits.

       The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects.  Since SHA-1 hashes have 160 bits,
       that  leaves 115 bits of margin.  Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
       with far fewer objects.

       If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see	if
       you're getting dangerously close to 160 bits.

OPTIONS

       --predict
	      Guess  the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
	      from the guess.  This is potentially useful for tuning an interpolation search algorithm.

       --ignore-midx
	      don't use .midx files, use only .idx files.  This is only really useful when used with --predict.

EXAMPLE

	      $ bup margin
	      Reading indexes: 100.00% (1612581/1612581), done.
	      40
	      40 matching prefix bits
	      1.94 bits per doubling
	      120 bits (61.86 doublings) remaining
	      4.19338e+18 times larger is possible

	      Everyone on earth could have 625878182 data sets
	      like yours, all in one repository, and we would
	      expect 1 object collision.

	      $ bup margin --predict
	      PackIdxList: using 1 index.
	      Reading indexes: 100.00% (1612581/1612581), done.
	      915 of 1612581 (0.057%)

SEE ALSO

       bup-midx(1), bup-save(1)

BUP

       Part of the bup(1) suite.

AUTHORS

       Avery Pennarun <apenwarr@gmail.com>.

Bup unknown-															     bup-margin(1)