In DOS, all lines end with a CR/LF combination or \r\n.
In UNIX, all lines end with a single LF or \n.
The ^M that you are seeing is actually a CR or \r. If you want to test for carraige returns in a file, you want to look for \r. Try this on the file:
You'll see tabs, vertical tabs, carriage returns, linefeeds and whatnot using the slash notation. I find this to be the best method for determining what actual characters are in a file.
Or, if you just want to see the ^M notation, you can use cat, like so:
If you want to remove the ^M characters, you can use dos2unix as suggested above, or the correct tr syntax:
These 4 Users Gave Thanks to stanleypane For This Post:
UNIX gurus:
Following is what I am trying to do:
I need to create a control file for another file that I am creating. The information needed in the control file is the date in YYYYMMDD format and then the number of records in the other file right justified and lpadded with spaces of 20.
So... (5 Replies)
Hi All,
I am looking for a solution to capture any ASCII control character in a file
( where the ASCII control character is in decimal value from 0 to 31 and 127
( Hex value from 00 to 1F and 7F ) ) by returning any affected lines.
The intended good file should contain "ASCII printable... (5 Replies)
Can anyone seem to know how to find out whether a UNIX text file has 'hidden' control characters?
Can I view them using 'vi' by some command line options?
If there are control characters in a text file which are invisible/hidden.. then how do I get rid of them?
Your intelletual answers are... (6 Replies)
Hi,
I have a .xml file in unix. We are passing this file through a xml parser.
But we are getting some control characters from input file and XML parser is failing for the control character in file.Now I am getting following error,
Error at byte 243206625 of file filename_$.xml:
Error... (1 Reply)
I am getting error when loading data file using ctl file. I get this error only when there is special character.
Below is some data.
DataFile=>
company_id|ciu_id|english_name|iso_country_code|active|partner_name
1-2JT-122||Expert Järvenpää|FI|A|Expert Järvenpää
Control File=>
LOAD DATA... (1 Reply)
In a 10-50GB file , at end of file there is Control-z character
tried the below options,
1. perl -p -i -e 's/^Z//g' new.txt
2. perl -0777lwi -032e0 new.txt
and Sed command, dos2unix etc
it takes more time to remove the control-z. need a command or perl program to GO TO LAST LINE OF FILE ... (7 Replies)
in a file we are getting control character in a file , is there any way that they can be removed once we have the file
for eg.
BEGIN-PROCEDURE INITIALIZE
^M
LET #row_count = 0^M
^M
^M (2 Replies)
Hi,
I am stuck with an problem and want some help, what i want to do is
There is a directory name temp
which include file named t1.txt, t2,txt, t3.txt and so on.
These files contains data, but there are some bad character also that is % present in the files , I want to write the script... (13 Replies)
I have to write a program to read data from files and then format into another file. However, I face a strange problem related to control character that I can't understand and solve.
The source file is compose of many lines with such format:
T_NAME|P_NAME|P_CODE|DOCUMENT_PATH|REG_DATE
... (3 Replies)
Delete
---- Original post, restored by mod after being deleted by abhilashnair ----
I have a requirement where, I need to create a control file which will have 3 columns in the header row as below:
Filename
Count
Checksum
This above control file has to contain metadata as above... (2 Replies)
Discussion started by: abhilashnair
2 Replies
LEARN ABOUT SUSE
ansi_ctrlu
term::ansi::ctrl::unix(n) Terminal control term::ansi::ctrl::unix(n)
__________________________________________________________________________________________________________________________________________________NAME
term::ansi::ctrl::unix - Control operations and queries
SYNOPSIS
package require Tcl 8.4
package require term::ansi::ctrl::unix ?0.1?
::term::ansi::ctrl::unix::import ?ns? ?arg...?
::term::ansi::ctrl::unix::raw
::term::ansi::ctrl::unix::raw
::term::ansi::ctrl::unix::columns
::term::ansi::ctrl::unix::rows
_________________________________________________________________DESCRIPTION
WARNING: This package is unix-specific and depends on the availability of two unix system commands for terminal control, i.e. stty and
tput, both of which have to be found in the $PATH. If any of these two commands is missing the loading of the package will fail.
The package provides commands to switch the standard input of the current process between raw and cooked input modes, and to query the size
of terminals, i.e. the available number of columns and lines.
API
INTROSPECTION
::term::ansi::ctrl::unix::import ?ns? ?arg...?
This command imports some or all attribute commands into the namespace ns. This is by default the namespace ctrl. Note that this is
relative namespace name, placing the imported command into a child of the current namespace. By default all commands are imported,
this can howver be restricted by listing the names of the wanted commands after the namespace argument.
OPERATIONS
::term::ansi::ctrl::unix::raw
This command switches the standard input of the current process to raw input mode. This means that from then on all characters typed
by the user are immediately reported to the application instead of waiting in the OS buffer until the Enter/Return key is received.
::term::ansi::ctrl::unix::raw
This command switches the standard input of the current process to cooked input mode. This means that from then on all characters
typed by the user are kept in OS buffers for editing until the Enter/Return key is received.
::term::ansi::ctrl::unix::columns
This command queries the terminal connected to the standard input for the number of columns available for display.
::term::ansi::ctrl::unix::rows
This command queries the terminal connected to the standard input for the number of rows (aka lines) available for display.
BUGS, IDEAS, FEEDBACK
This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category term of
the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for
either package and/or documentation.
KEYWORDS
ansi, columns, control, cooked, input mode, lines, raw, rows, terminal
COPYRIGHT
Copyright (c) 2006 Andreas Kupries <andreas_kupries@users.sourceforge.net>
term 0.1 term::ansi::ctrl::unix(n)