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тАО04-27-2006 09:20 PM
тАО04-27-2006 09:20 PM
I have file with the following content
....
OPERATOR,""
....
Sometimes, this field contains numbers.
What i would like to do is test the content if
it is "" or a number or string.
Maximum points to all correct answers.
Solved! Go to Solution.
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тАО04-27-2006 09:29 PM
тАО04-27-2006 09:29 PM
Re: "" help
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тАО04-27-2006 09:48 PM
тАО04-27-2006 09:48 PM
Re: "" help
if you assume a file format of:
Operator,""
Operator,"alpha"
Operator,"Alpha"
Operator,"123"
running the script:
# /usr/bin/sh
while read record
do
data=`echo $record | cut -d',' -f2|tr -d '"'`
echo "[$data]"
case ${data} in
[0-9]*) echo valid number entered
;;
[a-z]*) echo valid string entered
;;
[A-Z]*) echo valid string entered
;;
*) echo empty data
;;
esac
done < d.dat
Gives you:
[]
empty data
[alpha]
valid string entered
[Alpha]
valid string entered
[123]
valid number entered
Beware this script only checks the first character of the data given, so 1a2 would give you a number return !
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тАО04-27-2006 09:49 PM
тАО04-27-2006 09:49 PM
Solutionif [ -z "$OP" ]
then echo "its empty"
else
if [ $OP -eq 0 ]
then echo "its a zero"
else echo "Its not a zero"
fi
fi
[dba]blprd:/home/dba>OP=""
[dba]blprd:/home/dba> if [ -z "$OP" ] ^J then echo "its empty" ^J else^J if [ $OP -eq 0 ] ^J then e>
its empty
[dba]blprd:/home/dba> OP=123
[dba]blprd:/home/dba> if [ -z "$OP" ] ^J then echo "its empty" ^J else^J if [ $OP -eq 0 ] ^J then e>
Its not a zero
[dba]blprd:/home/dba> OP=0
[dba]blprd:/home/dba> if [ -z "$OP" ] ^J then echo "its empty" ^J else^J if [ $OP -eq 0 ] ^J then e>
its a zero
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тАО04-27-2006 10:10 PM
тАО04-27-2006 10:10 PM
Re: "" help
if [ $(echo ${var}|tr -d '[0-9]') = "" ];then
echo "Yes, contains number"
else
echo "No number"
fi
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тАО04-27-2006 10:41 PM
тАО04-27-2006 10:41 PM
Re: "" help
if you want to distinguish between three cases, try something like this, using your file as $1:
#!/usr/bin/sh
LINE=$(grep OPERATOR $1)
REST=${LINE##OPERATOR,}
echo "$REST" | grep -q "\"\"" 1>/dev/null
if [ "$?" = "0" ]
then
content=quoutes
else
echo "$REST" | grep -q "[0-9]" 1>/dev/null
if [ "$?" = "0" ]
then
content=numbers
else
# if no number present, assume string
content=string
fi
fi
echo $content
regards,
John K.
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тАО05-01-2006 02:16 PM
тАО05-01-2006 02:16 PM
Re: "" help
This forum is really great!