I am quite knew to scripting and I am trying to get a regular expression to work to check that a user enters a valid version number such as 1 or 1.1 or 12.3 etc. I dont seem to be able to get it to work as it picks up versions such as 1.......2. I only want it to work with a single dot. Thanks.
Code:
while true
do
print -- "Please enter the version number"
read version
if [[ "${version}" != "[0-9]*\.[0-9]*" ]]
then
print -- "Version is not a number"
else
break
fi
done
Last edited by Scott; 01-18-2013 at 07:56 AM..
Reason: Code tags, please...
Is it possible to combine a regular expression with a aritmetical expression? For example, taking a 8-numbers caracter sequece and casting each output of a grep, comparing to a constant.
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source $CA_VERSION_DATA
if * ]
then
echo "CA_RELESE $CA_RELEASE is invalid"
exit -1
fi
+ source /etc/ncgl/ca_version_data
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Hi all,
How am I read a file, find the match regular expression and overwrite to the same files.
open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat";
open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat";
while (<DESTINATION_FILE>)
{
# print... (1 Reply)
\..\ {3\}$
which one of these does this match
rs.ef$tt
abc.ab
abc.$$$$
abc
I think its the 1st one what do you think?
Thanks
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Hello All,
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j=0
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Discussion started by: cstsang
4 Replies
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AUTHOR
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