How to read text in blocks

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to remove duplicate text blocks from a file?

Hi All I have a list of files which will have duplicate list of blocks of text. Following is a sample of the file, I have removed the sensitive information from the file. All the code samples starts from <TR BGCOLOR="white"> and Ends with IP address and two html tags like this. 10.14.22.22...

2. Shell Programming and Scripting

Modify blocks of text by printing missing columns

Hi Experts, I have a problem where I want to print missing columns (3,4) within a block of text. Each block is separated by "###". Some rows have missing column 3 and 4 which should be same as the previous value in column 3 and 4. The file is space delimited. For example: INPUT ###...

3. Shell Programming and Scripting

Blocks of text in a file - extract when matches...

I sat down yesterday to write this script and have just realised that my methodology is broken........ In essense I have..... ----------------------------------------------------------------- (This line really is in the file) Service ID: 12345 ...

4. Shell Programming and Scripting

Adding and removing blocks of text from file

Hello all, short story: I'm writing a script to add and remove dns records in dns files. Its on a RHEL 5.5 So far i've locked up the basic operations in a couple of functions: - validate the parameters - search for existant ip in file when adding - search for existant name records in...

5. Shell Programming and Scripting

Working with individual blocks of text using awk

Hi, I am working with CVS log data and have some data as follows. RCS file: /cvsroot/eclipse/org.eclipse.debug.core/core/org/eclipse/debug/core/IBreakpointListener.java,v head: 1.14 branch: locks: strict access list: keyword substitution: o total revisions: 15; selected...

6. Shell Programming and Scripting

how to split this file into blocks and then send these blocks as input to the tool called Yices?

Hello, I have a file like this: FILE.TXT: (define argc :: int) (assert ( > argc 1)) (assert ( = argc 1)) <check> # (define c :: float) (assert ( > c 0)) (assert ( = c 0)) <check> # now, i want to separate each block('#' is the delimeter), make them separate files, and then send them as...

7. Programming

read() blocks process until the stream is closed

Hi @all, i really stuck in programming a tool with bidirectional process communication (popen(cmd, "rw") ... something like that ;-)). Here is the code: if(pipe(p_stdin) != 0 || pipe(p_stdout) != 0) { fprintf(stderr, "Aufruf von pipe() schlug fehl.\n"); exit(1); } ...

8. Shell Programming and Scripting

extract blocks of text from a file

Hi, This is part of a large text file I need to separate out. I'd like some help to build a shell script that will extract the text between sets of dashed lines, write that to a new file using the whole or part of the first text string as the new file name, then move on to the next one and...

9. Shell Programming and Scripting

Delete blocks of lines from text file

Hello, Hello Firends, I have file like below. I want to remove selected blocks say abc,pqr,lst. how can i remove those blocks from file. zone abc { blah blah blah } zone xyz { blah blah blah } zone pqr { blah blah blah }

LEARN ABOUT SUSE

wrjpgcom

WRJPGCOM(1)						      General Commands Manual						       WRJPGCOM(1)

NAME

       wrjpgcom - insert text comments into a JPEG file

SYNOPSIS

       wrjpgcom [ -replace ] [ -comment text ] [ -cfile name ] [ filename ]

DESCRIPTION

       wrjpgcom  reads the named JPEG/JFIF file, or the standard input if no file is named, and generates a new JPEG/JFIF file on standard output.
       A comment block is added to the file.

       The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file.  Although the standard doesn't actually define what COM blocks
       are  for,  they	are  widely used to hold user-supplied text strings.  This lets you add annotations, titles, index terms, etc to your JPEG
       files, and later retrieve them as text.	COM blocks do not interfere with the image stored in the JPEG file.  The maximum  size	of  a  COM
       block is 64K, but you can have as many of them as you like in one JPEG file.

       wrjpgcom  adds a COM block, containing text you provide, to a JPEG file.  Ordinarily, the COM block is added after any existing COM blocks;
       but you can delete the old COM blocks if you wish.

OPTIONS

       Switch names may be abbreviated, and are not case sensitive.

       -replace
	      Delete any existing COM blocks from the file.

       -comment text
	      Supply text for new COM block on command line.

       -cfile name
	      Read text for new COM block from named file.

       If you have only one line of comment text to add, you can provide it on the command line with -comment.	The  comment  text  must  be  sur-
       rounded with quotes so that it is treated as a single argument.	Longer comments can be read from a text file.

       If  you	give neither -comment nor -cfile, then wrjpgcom will read the comment text from standard input.  (In this case an input image file
       name MUST be supplied, so that the source JPEG file comes from somewhere else.)	You can enter multiple lines, up to 64KB worth.   Type	an
       end-of-file indicator (usually control-D) to terminate the comment text entry.

       wrjpgcom  will  not  add a COM block if the provided comment string is empty.  Therefore -replace -comment "" can be used to delete all COM
       blocks from a file.

EXAMPLES

       Add a short comment to in.jpg, producing out.jpg:

	      wrjpgcom -c "View of my back yard" in.jpg > out.jpg

       Attach a long comment previously stored in comment.txt:

	      wrjpgcom in.jpg < comment.txt > out.jpg

       or equivalently

	      wrjpgcom -cfile comment.txt < in.jpg > out.jpg

SEE ALSO

       cjpeg(1), djpeg(1), jpegtran(1), rdjpgcom(1)

AUTHOR

       Independent JPEG Group

								   15 June 1995 						       WRJPGCOM(1)

Shell Programming and Scripting