# Create text files

**URL:** <https://www.ruby-forum.com/t/create-text-files/106909>\
**Category:** Ruby\
**Created:** [June 15, 2007, 9:54am UTC](https://www.ruby-forum.com/t/create-text-files/106909 "2007-06-15T09:54:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tomtoday](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/35a633/32.png) [@tomtoday](https://www.ruby-forum.com/u/tomtoday)\
**Post date:** [June 15, 2007, 9:54am UTC](https://www.ruby-forum.com/t/create-text-files/106909/1 "2007-06-15T09:54:52Z")

</div>

Hi,

I do have a text file as shown below. I’d now like to use Ruby to create  
separate text files for the content between “======”. To do so I have:

# Open, read from a text file, and pass to block f1

File.open(‘test.txt’, ‘r’) do |f1|  
while line = f1.gets  
puts line  
end  
end

# Create a new file and write to it

File.open(‘cve.txt’, ‘w+’) do |f2|  
if f2 =~ /Name/  
puts line  
end  
end

Though cve.txt is empty and I just have one cve.txt. Pls advise. I  
appreciate.

# Test.txt

Name: CVE-1999-0005  
Status: Entry  
Reference: CERT:CA-98.09.imapd  
Reference: SUN:00177  
Reference: URL:  
[http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/177](http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/177)  
Reference: BID:130  
Reference: URL:[http://www.securityfocus.com/bid/130](http://www.securityfocus.com/bid/130)  
Reference: XF:imap-authenticate-bo

Arbitrary command execution via IMAP buffer overflow in authenticate  
command.

======================================================  
Name: CVE-1999-0006  
Status: Entry  
Reference: CERT:CA-98.08.qpopper\_vul  
Reference: SGI:19980801-01-I  
Reference: URL:  
ftp://patches.sgi.com/support/free/security/advisories/19980801-01-I  
Reference: AUSCERT:AA-98.01  
Reference: XF:qpopper-pass-overflow  
Reference: BID:133  
Reference: URL:[http://www.securityfocus.com/bid/133](http://www.securityfocus.com/bid/133)

Buffer overflow in POP servers based on BSD/Qualcomm’s qpopper allows  
remote attackers to gain root access using a long PASS command.

======================================================

---

<div class="post-metadata">

**Author:** ![tomtoday](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/35a633/32.png) [@tomtoday](https://www.ruby-forum.com/u/tomtoday)\
**Post date:** [June 15, 2007, 11:05am UTC](https://www.ruby-forum.com/t/create-text-files/106909/2 "2007-06-15T11:05:07Z")

</div>

Dear Tom,

you could do the following:

all\_text=IO.readlines(“test.txt”).to\_s.split(/=+/)  
name\_regexp=/Name: ([^\n]+)/  
all\_text.each{|entry\_between\_equal\_signs|  
file\_name=name\_regexp.match(entry\_between\_equal\_signs)  
if file\_name!=nil and File.exists?(file\_name[1]+‘.txt’)==false  
f=File.new(file\_name[1]+‘.txt’,‘w’)  
f.puts entry\_between\_equal\_signs  
f.close  
end  
}

Best regards,

Axel

-------- Original-Nachricht --------  
Datum: Fri, 15 Jun 2007 16:53:53 +0900  
Von: “Tom B.” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
An: removed\_email\_address@domain.invalid  
Betreff: Create text files…

---

<div class="post-metadata">

**Author:** ![tomtoday](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/35a633/32.png) [@tomtoday](https://www.ruby-forum.com/u/tomtoday)\
**Post date:** [June 15, 2007, 4:20pm UTC](https://www.ruby-forum.com/t/create-text-files/106909/3 "2007-06-15T16:20:05Z")

</div>

On Fri, 2007-06-15 at 16:53 +0900, Tom B. wrote:

> end
> 
> Reference: URL:[http://www.securityfocus.com/bid/130](http://www.securityfocus.com/bid/130)  
> Reference: URL:  
> ftp://patches.sgi.com/support/free/security/advisories/19980801-01-I  
> Reference: AUSCERT:AA-98.01  
> Reference: XF:qpopper-pass-overflow  
> Reference: BID:133  
> Reference: URL:[http://www.securityfocus.com/bid/133](http://www.securityfocus.com/bid/133)
> 
> Buffer overflow in POP servers based on BSD/Qualcomm’s qpopper allows  
> remote attackers to gain root access using a long PASS command.
> 
> ======================================================

not ruby, but…

$ csplit -f cve -z -n4 -k test.txt ‘/===================/’ ‘{99999}’

$ ls -rlt cve\*  
-rw-r–r-- 1 rthompso staff 56 Jun 15 08:14 cve0003  
-rw-r–r-- 1 rthompso staff 511 Jun 15 08:14 cve0002  
-rw-r–r-- 1 rthompso staff 416 Jun 15 08:14 cve0001  
-rw-r–r-- 1 rthompso staff 9 Jun 15 08:14 cve0000

$for file in `ls cve*`  
do  
echo $file  
echo “begin file output”  
cat $file  
echo “end file output”  
echo “”  
done

cve0000  
begin file output  
Test.txt  
end file output

# cve0001 begin file output

Name: CVE-1999-0005  
Status: Entry  
Reference: CERT:CA-98.09.imapd  
Reference: SUN:00177  
Reference: URL:  
[http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/177](http://sunsolve.sun.com/pub-cgi/retrieve.pl?doctype=coll&doc=secbull/177)  
Reference: BID:130  
Reference: URL:[http://www.securityfocus.com/bid/130](http://www.securityfocus.com/bid/130)  
Reference: XF:imap-authenticate-bo

Arbitrary command execution via IMAP buffer overflow in authenticate  
command.

end file output

# cve0002 begin file output

Name: CVE-1999-0006  
Status: Entry  
Reference: CERT:CA-98.08.qpopper\_vul  
Reference: SGI:19980801-01-I  
Reference: URL:  
ftp://patches.sgi.com/support/free/security/advisories/19980801-01-I  
Reference: AUSCERT:AA-98.01  
Reference: XF:qpopper-pass-overflow  
Reference: BID:133  
Reference: URL:[http://www.securityfocus.com/bid/133](http://www.securityfocus.com/bid/133)

Buffer overflow in POP servers based on BSD/Qualcomm’s qpopper allows  
remote attackers to gain root access using a long PASS command.

end file output

# cve0003 begin file output

end file output