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Full Discussion: unix: extract a specific list of lines from a file
Top Forums UNIX for Dummies Questions & Answers unix: extract a specific list of lines from a file Post 302397833 by ungalnanban on Tuesday 23rd of February 2010 06:32:50 AM
Old 02-23-2010
MySQL
Using Sed: also we can achieve this requirement

Input file:

Code:
1 aaaaaa bbbcb cccccc
2 aaaaaa bbbbb cccccd
3 aaaaaa bbbab cccccc
4 aaaaaa bbbxb cccccc
5 aaaaaa bbbbb cwcccc
6 aaaaaa bbbbb cqcccc

Sample Code:
Code:
sed -n '/^[3|5]/p' input-file >output-file

Output file:
Code:
3 aaaaaa bbbab cccccc
5 aaaaaa bbbbb cwcccc

Last edited by ungalnanban; 02-23-2010 at 07:34 AM.. Reason: spell mistake correction
 

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LEARN ABOUT DEBIAN

gp2c

GP2C(1) 							       PARI								   GP2C(1)

NAME

       GP2C - The GP to C compiler

DESCRIPTION

       gp2c [-ghfltvydWSTGV] [-i N] [-o <file>] [-p <prefix>] [file.gp]

       gp2c  is  a  program  that translate GP code to C code that use the libpari library. It tries to generate code looking like the PARI source
       code.

   user option:
       -o <file> : Place output in file <file>.

       -g : Generate automatic garbage collection code.

       -iN: Set indentation level to N spaces (default 2).

       -W : Output information about global variables.

       -p <prefix>: Prefix user-defined symbol by <prefix> to avoid conflict.

       -s <suffix>: Add suffix <suffix> to GP install names of functions.

       -S: Assume strict declarations for functions.

   query options:
       -h : This help.

       -f : Dump information about functions to stderr.

       -l : Output the list of functions known to the compiler.

       -t : Output the table of types known to the compiler.

       -v : Output version information and exit.

   debugging options:
       -d : Increase debugging level.

       -y : Switch parser to debug mode.

       -T : Output syntactic tree in treetool format.

       -TT : Output syntactic tree in VCG/GRL format.

       -G : Generate GP code in place of C code. Don't smile.

       -V : Do not clean up variables.

       file.gp: file to be processed, default to stdin.  The generated C code is output to stdout unless option -o is used.

       See the script gp2c-run for an automated compilation process.

COPYING

       Copyright 2000-2005 The PARI Group

       GP2C is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute  copies  of  it  under
       certain conditions.  There is absolutely no warranty for GP2C.

AUTHOR

       Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>

SEE ALSO

       gp2c-run(1), gp2c-dbg(1), gp(1), gcc(1)

GP to C compiler						   January 2005 							   GP2C(1)
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