10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
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)
Discussion started by: Ralph
9 Replies
2. Shell Programming and Scripting
My input file looks like this
12 3 5.122.281.413 172.31.15.220 3421 4133 2 2 1454 3421 4133 2 2 0
12 44036 214.215.52.146 90.123.245.211 2312 3911 4 4 521 2312 3911 4 4 1
14 504 6.254.324.219 192.61.27.120 4444 5611 7 5 1415 4444 5611 7 5 1 ... (2 Replies)
Discussion started by: sampitosh
2 Replies
3. Shell Programming and Scripting
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)
Discussion started by: thomasraj87
4 Replies
4. Shell Programming and Scripting
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)
Discussion started by: pathunkathunk
3 Replies
5. Shell Programming and Scripting
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)
Discussion started by: todaealas
12 Replies
6. Shell Programming and Scripting
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)
Discussion started by: jaysunn
3 Replies
7. Shell Programming and Scripting
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)
Discussion started by: euval
3 Replies
8. Shell Programming and Scripting
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)
Discussion started by: suntzu
1 Replies
9. UNIX for Dummies Questions & Answers
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)
Discussion started by: thanuman
3 Replies
10. UNIX for Dummies Questions & Answers
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)
Discussion started by: tony3101
2 Replies