Just curious if the following formula is possible within a shell script:
n x (n + 1) x (2n + 1)
______________________
6
so far im just using a simple expression but need to implement the above.
Many thanks in advance
Code:
#!/bin/sh
echo "\n"
echo -------- Squares on a chessboard Calculator -------"\n"
echo "Simply, this calculator will return the number of
squares on a chessboard, according to the size of
the square chosen\n"
echo "Please enter a square size (1-8)...\n"
read SQUARE_SIZE
NO_SQUARES=`expr $SQUARE_SIZE + 5`
echo $NO_SQUARES
exit 0
Hi, I am in ksh88
I am trying to get the result of the calculation using 3 variables:
TOTAL
CAPACITY
and get the following error:
$DB_CAPACITY=(( $DB_SIZE * 100 / $TOTAL ))
ksh: syntax error: `((' unexpected
I cannot figure out what am I doing wrong... Thanks for any help -A (2 Replies)
Hi All
I want to make summery for
Date=245Duration=545
Date=245Duration=10
Date=245Duration=278
Date=246Duration=30
Date=246Duration=178
Date=246Duration=414
Date=247Duration=17
Date=247Duration=281
Date=247Duration=9
Date=248Duration=968
Date=248Duration=550
Date=248Duration=1011... (1 Reply)
Hi I have a simple question.
Is there an easy way to read a date of birth from a file and calculate how old that person is based on today's date? And would I need the make sure the birthdates are enterered in a particular format?
Thanks (10 Replies)
for i in `lsvg`
do
echo "VG Name:" $i
echo "Total VG Size:"
lsvg $i |grep "TOTAL PPs:" |awk '{print $7}' | cut -c2-
echo "Free VG Size:"
lsvg $i |grep "FREE PPs:" | awk '{print $7}' | cut -c2-
done
The PP Sizes are in MB. I like to have the sizes in GB.
Also, I like to have the... (14 Replies)
can you help
i am merging 2 files together and saving to a third file with awk
and its working with this code
awk 'OFS="";NR==FNR{a=$0;next} {print a,"\n","\b",$0}' file1 file2 > file3the problem is in file3 when its saved
i get a small square at the start of every 2nd line (see picture)
... (6 Replies)
Discussion started by: bob123
6 Replies
LEARN ABOUT SUNOS
goto
exit(1) User Commands exit(1)NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps
SYNOPSIS
sh
exit [n]
return [n]
csh
exit [ ( expr )]
goto label
ksh
*exit [n]
*return [n]
DESCRIPTION
sh
exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of
the last command executed (an EOF will also cause the shell to exit.)
return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe-
cuted.
csh
exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the
expression expr.
The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches
for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to
jump to a label that occurs between a while or for built-in command and its corresponding end.
ksh
exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8
bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing
a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit
except for a shell which has the ignoreeof option (See set below) turned on.
return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the
least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return
is invoked while not in a function or a '.' script, then it is the same as an exit.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO break(1), csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 15 Apr 1994 exit(1)