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word wrap does not work

 
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# 1  
Old 10-18-2012
word wrap does not work
I have an input file like this,
Code:
79     #---------------------------------------------------------------------------   80     #-  define generic contact   81     cat > ${NAGIOS_ETC}/contact-generic.cfg                             <<-'EOF'   82         define contact {   83                name                             contact-generic   84                register                         0   85                host_notification_commands       notify-host-by-email   86                host_notification_options        d,u,r   87                host_notification_period         24x7   88                host_notifications_enabled       1   89                service_notification_commands    notify-service-by-email   90                service_notification_options     w,u,c,r

I want my output to look like this...
Code:
79     #---------------------------------------------------------------------------   
80     #-  define generic contact   
81     cat > ${NAGIOS_ETC}/contact-generic.cfg                             <<-'EOF'   
82         define contact {   
83                name                             contact-generic   
84                register                         0   
85                host_notification_commands       notify-host-by-email   
86                host_notification_options        d,u,r   
87                host_notification_period         24x7   
88                host_notifications_enabled       1   
89                service_notification_commands    notify-service-by-email   
90                service_notification_options     w,u,c,r

# 2  
Old 10-18-2012
I don't understand. You have an input file that contains one line of 744 characters with no field or line delimiters other than a possible trailing <newline> at the end of the file. You want a program to split this into variable length lines and you title the thread "word warp does not work". Please explain what this has to do with word wrapping and what program it is that you believe is not working correctly.
# 3  
Old 10-18-2012
Is this a Windows-UNIX problem perhaps? If you open a UNIX text file in Microsoft Notepad it will look like that because notepad looks for carriage returns...
# 4  
Old 10-19-2012
Line delimiters are probably the line numbers which should go in the first columns of the line. If nothing else helps, you might try the following:

First, count the number of characters between successive instances of these line numbers. I suppose the "lines" in between to be of fixed length.

Then reformat the lines like this (replace "<number>" with the number you got):

Code:
sed -e ':a' -e '/^.\{<number+1>\}/ {s/^.\{<number>\}/&\n/;P;D;ta}' /path/to/infile

I hope this helps.

bakunin
# 5  
Old 10-20-2012
The ideas and questions stated above come to my mind as well. Pls explain your strange input file. Yet, some solutions:
Assuming lines of identical length (which they are not!), a fold -w<number> filemight do. On the other hand, assuming two or more digit new line indicators embedded in spaces, which is a fragile condition as numbers may appear anywhere in the text, try this
Code:
sed -r 's/ ([0-9]{2,} )/ \n\1/g' file

or, should your sed not support the -r option,
Code:
sed  's/ \([0-9]\{2,\} \)/ \n\1/g' file

 
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