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Home -> Community -> Mailing Lists -> Oracle-L -> RE: DONE script enclosed: shell script to compare nos.
Hi Raja,
Yes, IFS stand for the "Internal Field Separator". It is a special shell variable in Bourne based shells. See the sh(1) man page for more information about it.
@ Regards, @ Steve Adams @ http://www.ixora.com.au/ @ http://www.christianity.net.au/
-----Original Message-----
Sent: Thursday, 12 April 2001 14:01
To: Steve Adams
Steve,
This is another way of doing it, but for my purposes, the software minor release no. will always be, of the form nn, that is 01. In that case, the script will work, but the one that you have sent also works, I liked the concept of IFS, where can I read about that, it must be standing for I something Field Seperator?
Did a man on vi, but would not give me that. I think I will look at some appendix or some thing.
Rgds,
Raja
-- On Thu, 12 Apr 2001 12:27:16 Steve Adams wrote:Received on Thu Apr 12 2001 - 00:04:02 CDT
>Hi Raja,
>
>I have not been following this thread until now, but the assumption that each
>minor point number will be two digits rather than one may not be valid. Also,
if
>your objective is to do it entirely in the shell, consider using IFS to avoid
>the cut as follows.
>
> #!/bin/sh
> v1=$1; v2=$2
> ifs="$IFS"; IFS=.
> set $v1; v1a=$1; v1b=$2; v1c=$3
> set $v2; v2a=$1; v2b=$2; v2c=$3
> IFS="$ifs"
>
> if [ "0$v1a" -eq "0$v2a" ] ; then
> if [ "0$v1b" -eq "0$v2b" ] ; then
> if [ "0$v1c" -eq "0$v2c" ] ; then
> echo "$v1 is the same as $v2"
> elif [ "0$v1c" -lt "0$v2c" ] ; then
> echo "$v1 is less than $v2"
> else
> echo "$v1 is greater than $v2"
> fi
> elif [ "0$v1b" -lt "0$v2b" ] ; then
> echo "$v1 is less than $v2"
> else
> echo "$v1 is greater than $v2"
> fi
> elif [ "0$v1a" -lt "0$v2a" ] ; then
> echo "$v1 is less than $v2"
> else
> echo "$v1 is greater than $v2"
> fi
>
>@ Regards,
>@ Steve Adams
>@ http://www.ixora.com.au/
>@ http://www.christianity.net.au/
>
>
>-----Original Message-----
>From: Viraj Luthra [mailto:viraj999_at_lycos.com]
>Sent: Thursday, 12 April 2001 11:55
>To: Multiple recipients of list ORACLE-L
>Subject: DONE script enclosed: shell script to compare nos.
>
>
> Hello every one,
>
>Thanks for the awk script sent before, I could not use ask as some sites dont
>have awk but have nawk, so my script will fail. So alternatively devised this
>shell script, which does the job:-
>
>#!/bin/sh
>
>
>olddir="7.04.03"
>olddir1="`echo $olddir| cut -c1 `"
>olddir2="`echo $olddir| cut -f2 -d"." `"
>olddir3="`echo $olddir| cut -f3 -d"." `"
>if [ "$olddir3" = "" ]; then
> olddir3=00
>fi
>fullversion="$olddir1""$olddir2""$olddir3"
>VER="7.05"
>ver1="`echo $VER| cut -c1 `"
>ver2="`echo $VER| cut -f2 -d"." `"
>ver3="`echo $VER| cut -f3 -d"." `"
>if [ "$ver3" = "" ]; then
> ver3="00"
># echo "The third version value is $ver3"
>fi
>fullver="$ver1""$ver2""$ver3"
>if [ "$fullversion" -gt "$fullver" ];then
> echo "The $olddir version is greater than $VER version"
>elif [ "$fullversion" -lt "$fullver" ];then
> echo "The $olddir version is less than $VER version"
>else
> echo "Both versions are equal"
>fi
>
>==============================================
>
>Basically I strip away the release nos. like instead of accepting 7.04.03, I
>accept it as 70403 and then compare and output.
>
>
>Thanks for help.
>
>Regrads,
>
>Raja
>
>On Wed, 11 Apr 2001 02:30:36
> lerobe - Lee Robertson wrote:
>>Why not simply do the following passing two parameters to the script eg.
>>call the script test.sh and call it so
>>
>>test.sh 2 1
>>
>>This results in output "VAR1 is greater than VAR2"
>>
>>then
>>
>>test.sh 1 2
>>
>>this results in output "VAR2 is greater than VAR1"
>>
>>Cheers.
>>
>>#!/bin/ksh
>>VAR1=$1
>>VAR2=$2
>>if [ "$VAR1" -gt "$VAR2" ]
>>then
>>echo "VAR1 is greater than VAR2"
>>else
>>echo "VAR2 is greater than VAR1"
>>fi
>>
>>
>>
>>-----Original Message-----
>>Sent: 11 April 2001 10:01
>>To: Multiple recipients of list ORACLE-L
>>
>>
>>Hi
>>I'm sure there are better ways but awk does the trick
>>
>>echo $var1 $var2 | awk '{ if ( $1 > $2 ) { print "1"} else { print"0" } }'
>>
>>cheers alex
>>
>>> Hello,
>>>
>>> I need some help in comparing 2 nos. in a unix shell.
>>>
>>> 1) e.g var1="7.04.03"
>>> and var2="7.05"
>>>
>>> I want to test:-
>>>
>>> if [ "$var2" > "$var1" ];then
>>> then $var2 version is greater than $var1"
>>> fi
>>>
>>> 2) 2nd condition is :-
>>>
>>> var1="7.04.03"
>>> var2="7.04.02"
>>>
>>> I want to test:-
>>> if [ "$var1" > "$var2" ];then
>>> then $var1 version is greater than $var2"
>>> fi
>>>
>>> Can some one send me a code?
>>>
>>> How can I do the above in shell? Can you please help me, a seemingly
>>simple
>>> one!
>>>
>>>
>>> Raja
>>>
>>>
>>>
>>> Get 250 color business cards for FREE! at Lycos Mail
>>> http://mail.lycos.com/freemail/vistaprint_index.html
>>--
>>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>>--
>>Author: Alex Apostolopoulos
>> INET: a.apostolopoulos_at_TRUCK24.com
>>
>>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
>>San Diego, California -- Public Internet access / Mailing Lists
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>>--
>>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>>--
>>Author: lerobe - Lee Robertson
>> INET: LEROBE_at_acxiom.co.uk
>>
>>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
>>San Diego, California -- Public Internet access / Mailing Lists
>>--------------------------------------------------------------------
>>To REMOVE yourself from this mailing list, send an E-Mail message
>>to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
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>
>
>Get 250 color business cards for FREE! at Lycos Mail
>http://mail.lycos.com/freemail/vistaprint_index.html
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>--
>Author: Viraj Luthra
> INET: viraj999_at_lycos.com
>
>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
>San Diego, California -- Public Internet access / Mailing Lists
>--------------------------------------------------------------------
>To REMOVE yourself from this mailing list, send an E-Mail message
>to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
>the message BODY, include a line containing: UNSUB ORACLE-L
>(or the name of mailing list you want to be removed from). You may
>also send the HELP command for other information (like subscribing).
>
>
Get 250 color business cards for FREE! at Lycos Mail http://mail.lycos.com/freemail/vistaprint_index.html -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Steve Adams INET: steve.adams_at_ixora.com.au Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
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