Removing carriage return/line feeds on multiple lines
I would like to remove carriage returns/line feeds in a text file, but in a specific cadence:
Read first line (Header Line 1), remove cr/lf at the end (replace it with a space ideally);
Read the next line (Line of Text 2), leave the cr/lf intact;
Read the next line, remove the cr/lf;
Read the next line (Header Line 2), remove cr/lf at the end (replace it with a space);
Read the next line (Line of Text 2), leave the cr/lf intact…
Here is my input data, in red of the cr/lf I would like deleted
Code:
Header Line 1 <cr/lf> ( replace with a space)
Line of Text 1<cr/lf>
<cr/lf>
Header Line 2 <cr/lf> (replace with a space)
Line of Text 2<cr/lf>
<cr/lf>
What I would like to output
Header Line 1 Line of Text 1
Header Line 2 Line of Text 2
Being new to sed, I have managed to remove all the cr/lf’s but I just end up with a long string of text. I would live to preserve the cr/lfs that separate Header Line 1 Line of Text 1 from Header Line 2 Line of Text 2.
Thanks for your help!
Last edited by Scrutinizer; 07-06-2012 at 11:17 AM..
Reason: code tags
Hello there,
I need to remove carriage return characters (\n and \r) from any input file specified. This is what I am doing right now:
- dumping the file to octal format using the command 'od -c file_name
- removing and \s and \n characters using sed commands
What I need to do now is... (3 Replies)
I have a file with multiple records in it and want to create a single record by removing all the carriage returns, is there a sed command or another command that will easily allow this to happen.
current layout
813209A
813273C
812272B
expected result
813209A813273C812272B
previously I... (3 Replies)
Hi,
I'm not very familiar with unix shell. I want to replace the combination of two carriage returns and one newline with one carriage return and one newline. I think the best way to do this is to use sed. I tried something like this:
sed -e "s#\#\#g" file.txt
but it doesn't work.
Thanx... (2 Replies)
Hello I'm trying to write a shell script which can remove a carriage return and/or line feed from a file, so the resulting file all ends up on one line.
So, I begin with a file like this
text in file!<CR>
line two!<CR>
line three!<CR>
END!<CR>
And I want to end up with a file... (1 Reply)
I have a file that I have to place a carriage return at the end of each line for another program to process it. I also need to remove all spaces after the carriage return. I searched the forums and found this command, but it removes all spaces:
sed "s/*//g" ic527.txt > ic527.new
The... (9 Replies)
Hi, I am trying to remove the carriage return on the record which starts with ADD, MODIFY, or DELETE keyword as the first value in the record. If the records does not start with anyone of these keywords then combine the records with the previous record (line).
Input
File name xyz.txt... (6 Replies)
Hi All,
I want to remove carriage return in a file using some unix command without writing a script
my file is as follows
abc1 abc2 abc3 abc4
abc5 bac6
abc1 abc2 abc3 abc4
abc5 bac6
I want the output as follows:
abc1 abc2 abc3 abc4 abc5 bac6
abc1 abc2 abc3 abc4 abc5 bac6
,
Please... (7 Replies)
Hello!
I have one strange question - let's say I have a long, multiple-line string displayed on the terminal using echo, and I would like to make a carriage return to the beginning of this string, no to the beginning of the last line - is something like that possible? I would like to be able to... (1 Reply)
Hello Gurus,
I have a multiple pipe separated files which have records going over multiple Lines. End of line separator is \n and records going over multiple lines have <CR> as separator. below is example from one file.
1|ABC DEF|100|10
2|PQ
RS
T|200|20
3| UVWXYZ|300|30
4| GHIJKL|400|40... (7 Replies)
Discussion started by: dJHa
7 Replies
LEARN ABOUT CENTOS
col
COL(1) User Commands COL(1)NAME
col - filter reverse line feeds from input
SYNOPSIS
col [options]
DESCRIPTION
col filters out reverse (and half-reverse) line feeds so the output is in the correct order with only forward and half-forward line feeds,
and replaces white-space characters with tabs where possible. This can be useful in processing the output of nroff(1) and tbl(1).
col reads from standard input and writes to standard output.
OPTIONS -b, --no-backspaces
Do not output any backspaces, printing only the last character written to each column position.
-f, --fine
Forward half line feeds are permitted fine mode. Normally characters printed on a half-line boundary are printed on the following
line.
-p, --pass
Force unknown control sequences to be passed through unchanged. Normally, col will filter out any control sequences from the input
other than those recognized and interpreted by itself, which are listed below.
-h, --tabs
Output tabs instead of multiple spaces.
-x, --spaces
Output multiple spaces instead of tabs.
-l, --lines number
Buffer at least number lines in memory. By default, 128 lines are buffered.
-V, --version
Output version information and exit.
-H, --help
Output help and exit.
NOTES
The control sequences for carriage motion that col understands and their decimal values are listed in the following table:
ESC-7 reverse line feed (escape then 7)
ESC-8 half reverse line feed (escape then 8)
ESC-9 half forward line feed (escape then 9)
backspace moves back one column (8); ignored in the first column
newline forward line feed (10); also does carriage return
carriage return (13)
shift in shift to normal character set (15)
shift out shift to alternate character set (14)
space moves forward one column (32)
tab moves forward to next tab stop (9)
vertical tab reverse line feed (11)
All unrecognized control characters and escape sequences are discarded.
col keeps track of the character set as characters are read and makes sure the character set is correct when they are output.
If the input attempts to back up to the last flushed line, col will display a warning message.
SEE ALSO expand(1), nroff(1), tbl(1)STANDARDS
The col utility conforms to the Single UNIX Specification, Version 2. The -l option is an extension to the standard.
HISTORY
A col command appeared in Version 6 AT&T UNIX.
AVAILABILITY
The col command is part of the util-linux package and is available from Linux Kernel Archive <ftp://ftp.kernel.org/pub/linux/utils/util-
linux/>.
util-linux September 2011 COL(1)