Trouble with a regular expression : [^<>]

B

Belaran

Registered
Hi !

This is my problem.Normally this regular expression

[^<>]

should suppress any line which do not have "<" or ">"
but when i do :

if
[ $line = "[^<>]" ]
then
echo " no tags"
else
echo " tags"
fi

Every line i put in "line" ( including the ones with tags) are echoed as "no tags" !!!

same troubles with this :

sed -e '/[^<>]/d'

::evil::
 
Actually, [^<>] matches any line which contains any one character which is neither < or >. This is the vast majority of lines, excluding lines such as "<>" or "<<". If you want lines which contain neither character, you will have to match the lines which do contain either and throw them out. The pattern for matching tags would be [<>].

Also, you can't use regex patterns in shell scripting. You have to use sed, perl, or grep. Have you looked into using grep for this?
 
You must log in or register to reply here.
Back
Top