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Top Forums Shell Programming and Scripting Closest Number from a Range of Numbers Post 302547716 by dude2cool on Tuesday 16th of August 2011 11:52:40 AM
Old 08-16-2011
I just put the logic in for printing out 30, based on user input of 39, work on the logic and you can get it to print 48 or whatever the next number is. Off course the script needs improvement in terms of error checking, checking if user did supply $1 etc., left as an exercise for OP Smilie. It will go up and down 100 numbers only, which can be tweaked.



Code:
# cat /tmp/23.sh
#!/usr/bin/bash
>/tmp/results
IFS=" ,"
OFS="\n"
v=$1
for i in `cat /tmp/90`
do
for x in {0..100}
do
t=`echo "$v-$x"|bc`
if [[ $t = $i ]]
then
echo $i >> /tmp/results
fi
done
done
echo "`tail -1 /tmp/results`"

here is the running:

# /tmp/23.sh 9
6


# /tmp/23.sh 39
30
 

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ns_tmp(3aolserver)					    AOLserver Built-In Commands 					ns_tmp(3aolserver)

__________________________________________________________________________________________________________________________________________________

NAME
ns_mktemp, ns_tmpnam - commands SYNOPSIS
ns_mktemp template ns_tmpnam _________________________________________________________________ DESCRIPTION
ns_mktemp returns a unique filename based on the template you specify. ns_tmpnam returns a filename that can safely be used for a tempo- rary file. The template for ns_mktemp should contain a string with six trailing Xs, which will be replaced with an alpha-numeric string of six charac- ters chosen to make the filename unique. If template does not end with six trailing Xs the empty string will be returned. ns_tmpnam calls the tmpnam() C library function, and the results will depend on your operating system. On Irix, for example, tmpnam() always generate a file name using the path-prefix defined as P_tmpdir in the header file which is "/var/tmp/". EXAMPLES
nscp> ns_tmpnam ;# On Linux /tmp/filevuLwaE nscp> ns_mktemp /tmp/foobar.XXXXXX /tmp/foobar.p6SlaC SEE ALSO
nsd(1), mktemp(3), tmpnam(3) KEYWORDS
AOLserver 4.0 ns_tmp(3aolserver)
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