The short answer is: you can't The single char "ls" shows is the End-of-File-character (literally a "^D") and it isn't possible with "vi" to delete it. In fact "vi" will even append such a EOF char to a file if it was missing.
Generate a file with "touch", it will have 0 characters. Now open this in "vi", write some text, delete it completely (this way "vi" thinks you have changed the file, do NOT use the undo-function) and save the file. You will notice that it has also 1 character in it - the EOF char.
I hope this helps.
bakunin
Sorry, but no. UNIX text files do not have an End-of-File character. Each line in a text file is terminated by a <newline> character. If you have a file open in vi and issue the commands:
Code:
:1,$d
:w file
(which deletes all lines in the file), the size of file will be 0 bytes.
If you have exactly one line in a file and you edit it with vi and delete all of the characters on the line by repeatedly executing the x command until the line is empty and then issue the command: :w file
then the size of file will be 1 byte because you didn't delete the line, you just deleted the characters on the line preceding the terminating <newline> character.
The current line (including the terminating <newline> character can also be deleted in vi with the dd command.
These 2 Users Gave Thanks to Don Cragun For This Post:
Dear Members,
We have a file which contains some special characters. I need to replace these special character by a new line character(\n).
The Special character is \x85.
I am not sure what this character means and how we can remove it.
Any inputs are greatly appreciated.
Thanks... (5 Replies)
Hi All,
i am trying to remove all special charecters().,/\~!@#%^$*&^_- and others from a tab delimited file.
I am using the following code.
while read LINE
do
echo $LINE | tr -d '=;:`"<>,./?!@#$%^&(){}'|tr -d "-"|tr -d "'" | tr -d "_"
done < trial.txt > output.txt
Problem
... (10 Replies)
hello all
I am writing a perl code and i wish to remove the special characters for text.
I wish to remove all extended ascii characters. If the list of special characters is huge, how can i do this using substitute command
s/specialcharacters/null/g
I really want to code like... (3 Replies)
I finally figured out how to remove a file or directory with special characters in the name. It's kind of rudimentary so I thought I would share it with everyone:
find .inum -exec rm -rf {} \; (7 Replies)
Hello all
I am getting data like
col1 | col2 | col3
asdafa | asdfasfa | asf*&^sgê
345./ |sdfasd23425^%^&^ | sdfsa23
êsfsfd | sf(* | sdfsasf
My requirement is like
I have to to read the file and remove all special characters and hex characters ranging form 00-1f from 1st column, remove %"'... (1 Reply)
Hi Gurus,
I have file which contains some unicode charachator like "ü". I want to replace it with some charactors. I searched in internet and got command sed "s/ü/-/g", but I don't know how to type ü in unix command line.
Please help me for this one.
Thanks in advance (7 Replies)
Thank you for 4 looking this post.
We have a tab delimited file where we are facing problem in a lot of funny character. I have tried using awk but failed that is not working.
In the 5th field ID which is supposed to be a integer only of that file, we are getting corrupted data as below.
I... (12 Replies)
Hi Guys,
My requirement is to remove any invisible and special characters from the file like control M(carriage return) and alt numerics and it should not replace @#!$%
abc|xyz|acd¥£ó
adc|123| 12áí
Please help on this.
Thanks
Rakesh (1 Reply)
Hi Guys,
My requirement is to remove any invisible and special characters from the file like control M(carriage return) and alt numerics and it should not replace @#!$%
abc|xyz|acd¥£ó
adc|123| 12áí
Please help on this.
Thanks
Rakesh (1 Reply)
Discussion started by: rakeshp
1 Replies
LEARN ABOUT HPUX
fold
fold(1) General Commands Manual fold(1)NAME
fold - fold long lines for finite width output device
SYNOPSIS
width] [file ...]
Obsolete form:
width] [file ...]
DESCRIPTION
The command is a filter that folds the contents of the specified files, breaking the lines to have a maximum of width column positions (or
bytes, if the option is specified). The command breaks lines by inserting a newline character so that each output line is the maximum
width possible that does not exceed the specified number of column positions (or bytes). A line cannot be broken in the middle of a char-
acter. If no files are specified or if a file name of is specified, the standard input is used.
The command is often used to send text files to line printers that truncate, rather than fold, lines wider than the printer is able to
print.
If the backspace, tab, or carriage-return characters are encountered in the input, and the option is not specified, they are treated spe-
cially as follows:
Backspace The current count of line width is decremented by one, although the count never becomes negative. Thus, the char-
acter sequence character-backspace-character counts as using one column position, assuming both characters each
occupy a single column position. does not insert a newline character immediately before or after any backspace
character.
Tab Each tab character encountered advances the column position pointer to the next tab stop. Tab stops are set 8 col-
umns apart at column positions 1, 9, 17, 25, 33, etc.
Carriage-return The current count of line width is set to zero. does not insert a newline character immediately before or after
any carriage-return character.
Note that may affect any underlining that is present.
Options
The command recognizes the following options and command-line arguments:
Count width in bytes rather than in column positions.
Break the line on the last blank character found
before the specified number of column positions (or bytes). If none are found, break the line at the specified
line length.
Specify the maximum line length, in column positions (or bytes if
is specified). The default value is 80. width should be a multiple of 8 if tabs are present, or the tabs should
be expanded using before processing by (see expand(1)). The option is obsolescent and may be removed in a future
release.
EXTERNAL INFLUENCES
Environment Variables
determines the interpretation of text as single- and/or multi-byte characters.
determines the language in which messages are displayed.
If or is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty
variable. If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of
If any internationalization variable contains an invalid setting, behaves as if all internationalization variables are set to "C". See
environ(5).
International Code Set Support
Single- and multi-byte character code sets are supported.
SEE ALSO expand(1).
STANDARDS CONFORMANCE fold(1)