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Full Discussion: how to get rid of ==>
Top Forums UNIX for Dummies Questions & Answers how to get rid of ==> Post 302308282 by mek86 on Friday 17th of April 2009 03:14:59 PM
Old 04-17-2009
how to get rid of ==>
ok the assignment question:
That English paper you were writing on the works of Lewis Carroll is due in a few hours and you have forgeotten the name of the text file in which you has written a number of quotations to use in your paper. Luckily, you know that the file is somewhere in your ~/UnixCourse directory or in some subdirectory directly or indeirently within it. You also know that the file name ended in '.txt'. You are pretty sure that you could recognize the file from just the first line.
You seem to recall having heard that there is a Unix command head that will print the first few lines of any file and suspect that, with the proper parameters, it could be used to print just the first line. (Hint - part of your task in this question is to show that you can use the built-in Unix help facilities.)

find command problems
redirectionAsst

But you really don't want to type that command out for every file or even every directory. What command would you give to produce a listing of the names of all the text files in ~/UnixCourse or its subdirectories (possibly nested several layers deep) followed immediately by the first line of text within that file? E.g., to produce a listing looking like this:
/home/yourname/UnixCourse/foo.txt
When in the course of human development
/home/yourname/UnixCourse/Quotations/bar.txt
Curiouser and curiouser!


finding a file and the first line of the text

Note that the output format must look like the example above. (That's not unreasonable, as one of the things you should have learned from this lesson is that the output of one command is often fed into later commands, which must be able to read it.) In particular, solutions that add extreneous characters around the file name (e.g., << or ==>) are not correct.


I was able to come up with :
Code:
find /home/yournameUnixCourse/ -name "*.txt" -exec head -n1 -v {} \;

Unfortunitly , this is bring up the ==> that is noted above that is incorrect.
How do i get rid of the ==> ? or is there another command that might work?
Last edited by Yogesh Sawant; 04-20-2009 at 05:49 AM.. Reason: added code tags
 

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LEARN ABOUT DEBIAN

odidx

ODIDX(1)						      Quick Database Manager							  ODIDX(1)

NAME

       odidx - indexer of document files

SYNOPSIS

       odidx register [-l file] [-wmax num] [-tsuf sufs] [-hsuf sufs] name[dir]
       odidx relate name
       odidx purge name

DESCRIPTION

       This manual page documents briefly the odidx commands.

       The  command odidx is a utility for indexing files on the local file system.  This command is useful for a full-text search system of a Web
       site. Supported file format are plain text and HTML. Supported character encoding are US-ASCII and ISO-8859-1. The URI of each document	is
       specified with the path of its file. Attributes named as title and date are given to each documents. When a document is already existing in
       the database, it is registered if its last modification time is newer, or it is ignored. Modification times are stored in the sub  database
       `_mtime'  in  the  main	database directory. Score information are stored in the sub database `_score' in the main database directory. This
       command is used in the above format. name specifies a database name.  dir specifies a directory name.

OPTIONS

       A summary of options is included below.	For a complete description, see the file:///usr/share/doc/qdbm-doc/spex.html#odeumcli.

       -l file
	      read a file and get list of paths of files to register. If `-' is specified, the standard input is read.

       -wmax num
	      specify the max number of words to be stored in the document database.

       -tsuf sufs
	      specify suffixes of plain text files in comma separated format. The default is `-tsuf .txt,.text'.

       -hsuf sufs
	      specify suffixes of HTML files in comma separated format. The default is `-hsuf .html,.htm'.

EXAMPLES

       For example, to register files which are under `/home/mikio' and whose suffix are `.txt', `.c', or `.h', perform the following command.
	    odidx register -tsuf ".txt,.c,.h" -hsuf "" casket /home/mikio

       Thus, to retrieve documents which include `unix' and `posix' and show the top 8 terms, perform the following command.
	    odmgr search -max 8 -h casket "unix posix"

SEE ALSO

       qdbm(3), odmgr(1), odeum(3), odopen(3).

AUTHOR

       QDBM was written by Mikio Hirabayashi <mikio@fallabs.com>.

       This manual page was written by Fumitoshi UKAI <ukai@debian.or.jp>, for the Debian project (but may be used by others).

Man Page							    2005-05-23								  ODIDX(1)
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