On 02/05/2011 09:51 AM, Emmett Culley wrote: > I have a bash script I've been using in CentOS that no longer works in Fedora 14. The pertinent lines are: > > mac=`echo $2 | tr a-z A-Z` > if [[ "$mac" =~ '[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]' ]]; then > echo 'good' > else > echo 'Invalid MAC address' > fi > > In CentOS or RHEL5 setting parameter 2 = 00:00:00:00:af:df works as expected, but not in Fedora. By adding -x to the first line of the script the output to the terminal in CentOS looks like this: > > ++ echo 00:00:00:00:af:df > ++ tr a-z A-Z > + mac=00:00:00:00:AF:DF > + [[ 00:00:00:00:AF:DF =~ [0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F]:[0-9A-F][0-9A-F] ]] > + echo good > good > > In Fedora it looks like this: > > ++ echo 00:00:00:00:af:df > ++ tr a-z A-Z > + mac=00:00:00:00:AF:DF > + [[ 00:00:00:00:AF:DF =~ \[0-9A-F]\[0-9A-F]:\[0-9A-F]\[0-9A-F]:\[0-9A-F]\[0-9A-F]:\[0-9A-F]\[0-9A-F]:\[0-9A-F]\[0-9A-F]:\[0-9A-F]\[0-9A-F] ]] > + echo 'Invalid MAC address' > Invalid MAC address > > Note the "\" before each "[" in the regular expression. > > Any ideas what is going on here? Is there a better forum to ask this question? See the bash FAQ at ftp://ftp.cwru.edu/pub/bash/FAQ item E14 "Why does quoting the pattern argument to the regular expression matching conditional operator (=~) cause regexp matching to stop working?" -- Bob Nichols "NOSPAM" is really part of my email address. Do NOT delete it. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
