12-15-2004
Deleting UNIX End of Line Chachracter \000
Hi,
I have this file which has some octal NULL characters (\000). I need to replace these characters with an ASCII NULL.
I've tried using Perl, the UNIX tr command..
History of this
I received a COBOL generated file, ran the od command to convert to a xxx byte per record file.
Now, some of the records that have octal NULLS wont convert and it merges the next line to this record with the current line. I found this at
http://www.canberra.edu.au/~sam/whp/sed-tricks.html
Type in a text file named "f127.TR" with the line starting tr above. Print the file on screen with cat f127.TR command, replace "filein" and "fileout" with your file names, not same the file, then copy and paste the line and run (execute) it. Please, remember this does not solve Unix end-of-file problem, that is the character '\000', also known as a 'null', in the file. Nor does it handle binary file problem, that is a file starting with two zeroes '\060' and '\060' http://www.canberra.edu.au/~sam/whp/sed-tricks.html
Any idea how I could do this in UNIX without using C or a different programming language.
Thanks,
U
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LEARN ABOUT FREEBSD
paste
PASTE(1) BSD General Commands Manual PASTE(1)
NAME
paste -- merge corresponding or subsequent lines of files
SYNOPSIS
paste [-s] [-d list] file ...
DESCRIPTION
The paste utility concatenates the corresponding lines of the given input files, replacing all but the last file's newline characters with a
single tab character, and writes the resulting lines to standard output. If end-of-file is reached on an input file while other input files
still contain data, the file is treated as if it were an endless source of empty lines.
The options are as follows:
-d list Use one or more of the provided characters to replace the newline characters instead of the default tab. The characters in list
are used circularly, i.e., when list is exhausted the first character from list is reused. This continues until a line from the
last input file (in default operation) or the last line in each file (using the -s option) is displayed, at which time paste
begins selecting characters from the beginning of list again.
The following special characters can also be used in list:
newline character
tab character
\ backslash character
Empty string (not a null character).
Any other character preceded by a backslash is equivalent to the character itself.
-s Concatenate all of the lines of each separate input file in command line order. The newline character of every line except the
last line in each input file is replaced with the tab character, unless otherwise specified by the -d option.
If '-' is specified for one or more of the input files, the standard input is used; standard input is read one line at a time, circularly,
for each instance of '-'.
EXIT STATUS
The paste utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
List the files in the current directory in three columns:
ls | paste - - -
Combine pairs of lines from a file into single lines:
paste -s -d '
' myfile
Number the lines in a file, similar to nl(1):
sed = myfile | paste -s -d '
' - -
Create a colon-separated list of directories named bin, suitable for use in the PATH environment variable:
find / -name bin -type d | paste -s -d : -
SEE ALSO
cut(1), lam(1)
STANDARDS
The paste utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A paste command appeared in Version 32V AT&T UNIX.
BSD
June 25, 2004 BSD