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Top Forums Shell Programming and Scripting How to fix line breaks format text for huge files? Post 302588978 by birei on Tuesday 10th of January 2012 10:52:29 AM
Old 01-10-2012
Hi kikionline,

One way using sed:
Code:
$ cat infile
HEADER474687
D1356jkl ugbliuybikb 879870
898976098 9687680
D77656757 uhgliug liygoiygig
D98679hjh kjbgihguygfu ugliyh
kbygfluy9809
D8796870 kjlhuigiyig
TRAILER0008
$ sed -ne '
   1 { p ; b};
   /^D/ { x ; s/^\n// ; s/\n/ /g ; /./ { p }; b };
   /^D/! { $! { H ; b }; };
   $ { H ; x ; s/^\n// ; p }; 
' infile
HEADER474687
D1356jkl ugbliuybikb 879870 898976098 9687680
D77656757 uhgliug liygoiygig
D98679hjh kjbgihguygfu ugliyh kbygfluy9809
D8796870 kjlhuigiyig
TRAILER0008

Regards,
Birei
 

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MAKE_SOCKDFC(8) 					      System Manager's Manual						   MAKE_SOCKDFC(8)

NAME
make_sockdfc - Generates frozen configuratyion file for SOCKS server SYNOPSIS
make_sockdfc [infile [outfile] ] DESCRIPTION
make_sockdfc reads in a plain-text configuration file for the SOCKS server and produces a frozen configuration file as the output. Both arguments are optional. The default for infile is /etc/sockd.conf; the default for outfile is /etc/sockd.fc. You may specify infile while omitting outfile, but you cannot specify outfile without also speficying infile. The contents of the frozen configuration file is essentially the memory image of the parsed input file. Using the frozen configuration file can reduce the start-up delay of the SOCKS server program since it no longer has to parse the file contents. When the SOCKS server starts, it always looks for the frozen configuration file /etc/sockd.fc first. If that file is not found, it then tries to use the plain-text configuration file /etc/sockd.conf. If you use frozen configuration, you must remember to run make_sockdfc every time after you modify the plain-text file or the SOCKS server will continue to use the frozen file of a previous configuration. To find out the contents of a frozen configuration file, use dump_sockdfc. FILES
/etc/sockd.fc, /etc/sockd.conf SEE ALSO
dump_sockdfc(8), sockd.conf(5), sockd.fc(5) AUTHOR
Ying-Da Lee, yingda@best.com or yingda@esd.sgi.com May 6, 1996 MAKE_SOCKDFC(8)
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