I made a small change to a UNIX script. When I tried to run it I received the following message:
/bin/ksh: ^M: not found
/bin/ksh: ^M: not found
/bin/ksh: ^M: not found
As ^M is a non printing character, I don't know how to discover where it is missing. How can I correct thiis... (2 Replies)
Hello all,
I have two files, that I suspect may contain hidden characters (EG, three spaces instead of a tab). Does anyone know of any tool that can display this (I have tried using diff, but I'm not quite sure it would do the job) (6 Replies)
Hello All,
I'm trying to parse through a file and display all the hidden characters, including all carriage and line returns. I usually use cat -v, but this doesn't display the carriage and line returns. Does anyone know how this can be done?
Thanks
Khoom (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)
Hello everybody.
Im really new in shell scripting. Im working with RedHat 4.
I have begin to do some scripts to test the posibilitys but Im fancing a disturbing problem.
some times the lines that I write add the return character or end-of-file ascii character to the command or argument tha... (2 Replies)
I am completely new to perl programming. My father is helping me learn said programming language. However, I am stuck on one of the assignments he has given me, and I can't find very much help with it via google, either because I have a tiny attention span, or because I can be very very dense.
... (4 Replies)
Hello everyone.
When I copy some configuration settings string from MS_Word to putty from my personal pc to a remote machine, it appears that I copy some hidden symbols, which at first, cannot be seen and appear as hidden. Some java programs did not start, and after investigation I found that:
... (3 Replies)
Hello.
I use this command :
rsync -av --include=".*" --dry-run "$A_FULL_PATH_S" "$A_FULL_PATH_D"The data comes from the output of a find command.
And no full source directories are in use, only some files.
Source example... (2 Replies)
Hi. I'm getting the following hidden characters \uat the start of a string after I pass in variables from the command line. I only noticed this when I set -x in my KSH script. Can anybody tell me how this happens and how to remove them?
Many thanks.
+ STR=$'\uusername testuser1'
+ print... (12 Replies)
Discussion started by: user052009
12 Replies
LEARN ABOUT NETBSD
vis
VIS(1) BSD General Commands Manual VIS(1)NAME
vis -- display non-printable characters in a visual format
SYNOPSIS
vis [-bcfhlmnostw] [-e extra] [-F foldwidth] [file ...]
DESCRIPTION
vis is a filter for converting non-printable characters into a visual representation. It differs from 'cat -v' in that the form is unique
and invertible. By default, all non-graphic characters except space, tab, and newline are encoded. A detailed description of the various
visual formats is given in vis(3).
The options are as follows:
-b Turns off prepending of backslash before up-arrow control sequences and meta characters, and disables the doubling of backslashes.
This produces output which is neither invertible or precise, but does represent a minimum of change to the input. It is similar to
``cat -v''. (VIS_NOSLASH)
-c Request a format which displays a small subset of the non-printable characters using C-style backslash sequences. (VIS_CSTYLE)
-e extra
Also encode characters in extra, per svis(3).
-F foldwidth
Causes vis to fold output lines to foldwidth columns (default 80), like fold(1), except that a hidden newline sequence is used,
(which is removed when inverting the file back to its original form with unvis(1)). If the last character in the encoded file does
not end in a newline, a hidden newline sequence is appended to the output. This makes the output usable with various editors and
other utilities which typically don't work with partial lines.
-f Same as -F.
-h Encode using the URI encoding from RFC 1808. (VIS_HTTPSTYLE)
-l Mark newlines with the visible sequence '$', followed by the newline.
-m Encode using the MIME Quoted-Printable encoding from RFC 2045. (VIS_MIMESTYLE)
-n Turns off any encoding, except for the fact that backslashes are still doubled and hidden newline sequences inserted if -f or -F is
selected. When combined with the -f flag, vis becomes like an invertible version of the fold(1) utility. That is, the output can be
unfolded by running the output through unvis(1).
-o Request a format which displays non-printable characters as an octal number, ddd. (VIS_OCTAL)
-s Only characters considered unsafe to send to a terminal are encoded. This flag allows backspace, bell, and carriage return in addi-
tion to the default space, tab and newline. (VIS_SAFE)
-t Tabs are also encoded. (VIS_TAB)
-w White space (space-tab-newline) is also encoded. (VIS_WHITE)
SEE ALSO unvis(1), svis(3), vis(3)HISTORY
The vis command appears in 4.4BSD.
BSD February 10, 2009 BSD