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UNIX for Dummies Questions & Answers
Re-arranging lines of text... help?
Post 302291545 by aerostar700 on Thursday 26th of February 2009 01:49:58 AM
02-26-2009
Well, basicaly you have 2 ways to do that. If it's just a matter of editing one file once in a while, I'd use vi for that. If you want to do that on a regular basis, a shell script would be better suited.
vi method :
vi pool.txt
(position cursor on the 1st line)
type : 5dd (the first 5 lines will disappear, don't panic)
type : Shift-G (cursor will jump to the last line)
type : p (5 lines will magically reappear at the end of text)
type : 5 and (Up Arrow) (cursor will jump up 5 lines)
type : 5dd (those 5 lines will vanish)
type : :0 (the colon sign and the number 0), that will position you at the top of the file
type : Shift-P (5 lines reappear on top of the file)
type : :w pool2.txt (colon sign and the letter w + name of the new file)
type : :q! (colon sign, the letter q and exclamation mark) to quit without saving the changes to the original file
This seems rather obnoxious, but in fact, it take just about 3 seconds to actually do that
Actually, nobody would want to write a script to do that, vi is quick enough. But if you really want to do it without using vi then :
$ tail -5 pool.txt > pool2.txt ; sed -n '6,15p' pool.txt >>pool2.txt ; head -5 pool.txt >>pool2.txt
... will do the trick nicely
vi method :
vi pool.txt
(position cursor on the 1st line)
type : 5dd (the first 5 lines will disappear, don't panic)
type : Shift-G (cursor will jump to the last line)
type : p (5 lines will magically reappear at the end of text)
type : 5 and (Up Arrow) (cursor will jump up 5 lines)
type : 5dd (those 5 lines will vanish)
type : :0 (the colon sign and the number 0), that will position you at the top of the file
type : Shift-P (5 lines reappear on top of the file)
type : :w pool2.txt (colon sign and the letter w + name of the new file)
type : :q! (colon sign, the letter q and exclamation mark) to quit without saving the changes to the original file
This seems rather obnoxious, but in fact, it take just about 3 seconds to actually do that
Actually, nobody would want to write a script to do that, vi is quick enough. But if you really want to do it without using vi then :
$ tail -5 pool.txt > pool2.txt ; sed -n '6,15p' pool.txt >>pool2.txt ; head -5 pool.txt >>pool2.txt
... will do the trick nicely
Last edited by aerostar700; 02-26-2009 at 02:58 AM..
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mac2unix
dos2unix(1) General Commands Manual dos2unix(1) NAME
dos2unix - DOS/MAC to UNIX text file format converter SYNOPSYS
dos2unix [options] [-c convmode] [-o file ...] [-n infile outfile ...] Options: [-hkqV] [--help] [--keepdate] [--quiet] [--version] DESCRIPTION
This manual page documents dos2unix, the program that converts plain text files in DOS/MAC format to UNIX format. OPTIONS
The following options are available: -h --help Print online help. -k --keepdate Keep the date stamp of output file same as input file. -q --quiet Quiet mode. Suppress all warning and messages. -V --version Prints version information. -c --convmode convmode Sets conversion mode. Simulates dos2unix under SunOS. -o --oldfile file ... Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used. -n --newfile infile outfile ... New file mode. Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be used or you WILL lost your files. EXAMPLES
Get input from stdin and write output to stdout. dos2unix Convert and replace a.txt. Convert and replace b.txt. dos2unix a.txt b.txt dos2unix -o a.txt b.txt Convert and replace a.txt in ASCII conversion mode. Convert and replace b.txt in ISO conversion mode. Convert c.txt from Mac to Unix ascii format. dos2unix a.txt -c iso b.txt dos2unix -c ascii a.txt -c iso b.txt dos2unix -c mac a.txt b.txt Convert and replace a.txt while keeping original date stamp. dos2unix -k a.txt dos2unix -k -o a.txt Convert a.txt and write to e.txt. dos2unix -n a.txt e.txt Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt. dos2unix -k -n a.txt e.txt Convert and replace a.txt. Convert b.txt and write to e.txt. dos2unix a.txt -n b.txt e.txt dos2unix -o a.txt -n b.txt e.txt Convert c.txt and write to e.txt. Convert and replace a.txt. Convert and replace b.txt. Convert d.txt and write to f.txt. dos2unix -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt DIAGNOSTICS
BUGS
The program does not work properly under MSDOS in stdio processing mode. If you know why is that so, please tell me. AUTHORS
Benjamin Lin - <blin@socs.uts.edu.au> Bernd Johannes Wuebben (mac2unix mode) <wuebben@kde.org> MISCELLANY
Tested environment: Linux 1.2.0 with GNU C 2.5.8 SunOS 4.1.3 with GNU C 2.6.3 MS-DOS 6.20 with Borland C++ 4.02 Suggestions and bug reports are welcome. SEE ALSO
unix2dos(1) mac2unix(1) 1995.03.31 dos2unix v3.0 dos2unix(1)