Using regex in sed to validate the length of an entry
I'm having trouble using sed to validate the length of an entry. I want to have a user enter a phone number of either length 7, 10 or 11. Only numbers are allowed. Does anyone know how to do this? Here's the code I have so far. It only validates that numbers are entered but not the length.
My defaul shell is /bin/ksh
I want to make multi entry sed changes to files
mainly because is easier for me to check my arguments in that
format, than all in just one line. example
sed '
> s/this/for this/
> s/that/for that/
> s/I/me/' filex > filez
Searching the net I read... (2 Replies)
Hi ,
I have a peculiar case, where my sed command is working on a file which contains lines of small length.
sed "s/XYZ:1/XYZ:3/g" abc.txt > xyz.txt
when abc.txt contains lines of small length(currently around 80 chars) , this sed command is working fine.
when abc.txt contains lines of... (3 Replies)
I am having trouble parsing rpm filenames in a shell script.. I found a snippet of perl code that will perform the task but I really don't have time to rewrite the entire script in perl. I cannot for the life of me convert this code into something sed-friendly:
if ($rpm =~ /(*)-(*)-(*)\.(.*)/)... (1 Reply)
Hi folks,
I have XML files with the following sections (section occurs once per file) in them:
<AuthorList CompleteYN="Y">
<Author ValidYN="Y">
<LastName>Bernal</LastName>
<ForeName>Federico</ForeName>
... (3 Replies)
Hello,
I am not having much luck with removing a entry in cron. I would like to get rid of the following line in /var/spool/cron/root.
1 09 * * 1-5 /etc/init.d/snmpd stop > /dev/null 2>&1I have tried this with no luck.
sed -i 's#1 09 * * 1-5 /etc/init.d/snmpd stop >... (3 Replies)
Hi guys, I'm new to bash programming, so please pardon me.
I'm trying to replace an entry's text in Books.txt
This code works perfectly:
sed -i "s/$BookTitle/$NewBookTitle/g" Books.txt
But problem is, if there are double entries, it will also replace that entry. For example:
... (12 Replies)
I have a large file of many pairs of sequences and their headers, which always begin with '>'
I'm looking for help on how to retain only sequences (and their headers) below a certain length. So if min length was 10, output would be
I can filter by length, but I'm not sure how to exclude... (3 Replies)
I have the input file like this.
Input file: 12.txt
1) There are one or more than one <tr> tags in same line.
2) Some tr tags may have one <td> or more tna one <td> tags within it.
3) Few <td> tags having "<td> </td>". Few having more than one " " entry in it.
<tr> some td... (4 Replies)
I'm trying to use a regular expression to validate a value for sleep entered by the user. The test should fail all negative values and 0 but let pass all combinations of + . and digits that would amount to a valid parameter for sleep.
Examples for valid: 1, 1.5, .5, 0.5, +1, +.5, +1.3 etc.... (9 Replies)