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Top Forums Shell Programming and Scripting using sed but want to drop last line Post 302283618 by atc98092 on Tuesday 3rd of February 2009 04:28:57 PM
Old 02-03-2009
I may have it!

Back from Hawaii, leave for Florida tomorrow. Jacksonville is as cold as Seattle right now!Smilie

I did some testing today (on Linux), and I think I have what I need. This is what I did:

Code:

cat 15.txt | tr -s '\012' ' ' > tmp.txt

echo WEATHER: > tmp3.txt
echo
cat tmp.txt | sed 's/ \([0-2][0-9][0-5][0-9] TMU\)/\
\1/g' | sed -n '/[0-2][0-9][0-5][0-9] TMU [WX:]/P' >> tmp3.txt
echo EQUIPMENT: >> tmp3.txt
echo
cat tmp.txt | sed 's/ \([0-2][0-9][0-5][0-9] TMU\)/\
\1/g' | sed -n '/[0-2][0-9][0-5][0-9] TMU [EQ:]/P' >> tmp3.txt
echo METERING: >> tmp3.txt
echo
sed -e 's/ \([0-2][0-9][0-5][0-9] TMU\)/\
\1/g' tmp.txt | sed -n -e '/[0-2][0-9][0-5][0-9] TMU [MET][EX]/P' >> tmp3.txt
rm tmp.txt

If I am following the flow correctly, after the first cat changes the newlines to spaces and saves into a temp file, I can then scan for my keywords to retrieve the individual entries required. On the first two I scan for WX: and EQ: and it returns exactly what I want Smilie.

The 3rd time through looking for METERING: I have problems. For some reason it returns the metering lines, plus more that don't match the string. However, I add in the [EX] and then it works! That confuses me, since I have a few more keywords to search for, and I don't want to have to ask for help every timeSmilie

Thanks again for the help. I'll be working on this again next Monday when I return from Florida.

To bad all this travel is work related and I can't spend some time looking around! Smilie
 

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unix2dos(1)						      General Commands Manual						       unix2dos(1)

NAME
unix2dos - UNIX to DOS text file format converter SYNOPSYS
unix2dos [options] [-c convmode] [-o file ...] [-n infile outfile ...] Options: [-hkqV] [--help] [--keepdate] [--quiet] [--version] DESCRIPTION
This manual page documents unix2dos, the program that converts text files in UNIX format to DOS 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 unix2dos 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. unix2dos Convert and replace a.txt. Convert and replace b.txt. unix2dos a.txt b.txt unix2dos -o a.txt b.txt Convert and replace a.txt in ASCII conversion mode. Convert and replace b.txt in ISO conversion mode. unix2dos a.txt -c iso b.txt unix2dos -c ascii a.txt -c iso b.txt Convert and replace a.txt while keeping original date stamp. unix2dos -k a.txt unix2dos -k -o a.txt Convert a.txt and write to e.txt. unix2dos -n a.txt e.txt Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt. unix2dos -k -n a.txt e.txt Convert and replace a.txt. Convert b.txt and write to e.txt. unix2dos a.txt -n b.txt e.txt unix2dos -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. unix2dos -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. AUTHOR
Benjamin Lin - ( blin@socs.uts.edu.au ) 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
dos2unix(1) 1995.03.31 unix2dos v2.2 unix2dos(1)
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