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09-19-2006

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help - script can check jump sequence?

Hi,

if I have a lot of files like (AABBCC0010, AABBCC0011, AABBCC0012....AABBCC1000), can I write a small script to check any sequence number jump and show me the result which sequence number?

#The first sequence may start from 0010 or 0101...

Thank you!!

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09-20-2006

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You can write a small script to do that. Here is one that I wrote:

Code:

#!/bin/sh
start=1

for file_number in  `ls -1 AABBCC* | sort | cut -c 7,8,9,10`
do
    if [ $start = 1 ] ; then
    # this is the first pass of the loop, so we've got nothing to compare
        start=0
    else
    # this is not the first pass of the loop
        previous=`expr $previous + 1`
        echo "comparing $file_number and $previous ... "
        if [ $file_number = $previous ] ; then
            echo "file names are in sequence "
        else
            echo "file names $file_number are not in sequence "
        fi
    fi
    previous=$file_number
done

I assumed that filenames are AABBCCxxxx where xxxx is a number, which is of interest to us. Please note that this script does not work with smaller numbers, of 3 digits and 2 digits. Reason is that expr strips the leading zeros in such numbers (0010 becomes 10 which then breaks the sequence)

Last edited by Yogesh Sawant; 08-28-2009 at 05:29 AM.. Reason: added code tags

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09-20-2006

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not work..
when I run the script, it showing the error below:

Code:

expr: non-numeric argument
comparing SIMAC and  ... 
ksh: test: argument expected
file names SIMAC are not in sequence 
expr: non-numeric argument
comparing SIMAC and  ... 
ksh: test: argument expected
file names SIMAC are not in sequence 
expr: non-numeric argument

Last edited by Yogesh Sawant; 08-28-2009 at 05:30 AM.. Reason: added code tags

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09-20-2006

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if [ $start = 1 ] replace with if [ $start -eq 1 ]
and if [ $file_number = $previous ] with if [ $file_number -eq $previous ]

Dhruva

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09-20-2006

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You are using ksh to execute this script. Try using sh. Run it as:

$ sh scriptname

where scriptname is the name of the script

Yogesh Sawant

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09-20-2006

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I try to run:

sh checkseq (scriptname)

it showing:

Code:

expr: non-numeric argument
comparing SIMAC and  ... 
checkseq: test: argument expected

Last edited by Yogesh Sawant; 08-28-2009 at 05:31 AM.. Reason: added code tags

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The variable previous is not initialised.
Modify the script :

Code:

if [ $start -eq 1 ] ; then
   # this is the first pass of the loop, so we've got nothing to compare
   start=0
   previous=$file_number
else

Jean-Pierre.

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