I am facing some problems with bad characters in my file.For example-
Now I want to remove all bad characters and replace with *.
Please suggest some solution.
Along with that How to mention a range of ASCII values in TR command to replace?
Say I want to replace ASCII value 32 -38(Dec) with Asterisk(*), how to perform with TR command in UNIX.
I need to write a script that can find a bad record (for example: there is date field colom but value provided in the file for this field is N/A) then script shoud searches this pattern and then insert the whole record into the bad file.
Example:
File1
Name designation dateOfJoining... (1 Reply)
I need to write a script that can find a bad record (for example: there is date field colom but value provided in the file for this field is N/A) then script shoud searches this pattern and then insert the whole record into the bad file.
Example:
File1
Name designation dateOfJoining... (2 Replies)
Hello there,
I hope I took the right forum...
I never worked with Perl, but now I have to get a simple fileserver running. The goal is to deliver an XML file (it's part of a new security model in the Flashplayer, see Adobe - Developer Center : Setting up a socket policy file server for more... (9 Replies)
Can someone help me to write a script / command to read in a file, character by character, replace any unknown ASCII characters with space. then write out the file to a new filename/
Thanks! (1 Reply)
Hi All,
I have a big log file i want to delete all characters (between 350th to 450th characters) starting at 350th character position to 450th character position.
please advice or sample code. (6 Replies)
hello all
i request you to give the solution for the following problem..
I want read the text file.and print the contents character by character..like if the text file contains google means..i want to print
g
go
goo
goog
googl
google
like this Using unix Shell scripting...
without using... (1 Reply)
i have a reqirement to adjust the data in a file based on a perticular character
the sample data is as below
483PDEAN CORRIGAN 52304037528955WAGES 50000
89BP ABCD MASTER352 5434604223735428 4200
58BP SOUTHERN WA848 ... (1 Reply)
I want to get the last character from my machine name using the following code, the default shell is bash, the script runs in ksh.
I get 'bad' substitution error on running the script, but works fine if run using dot and space.
Why?
$ echo $0
bash
$ cat -n myenv.sh
1 ... (8 Replies)
I have a file which comes every day and the file data look's as below.
Vi abc.txt
a|b|c|d\n
a|g|h|j\n
Some times we receive the file with only a new line character in the file like
vi abc.txt
\n (8 Replies)
Discussion started by: rak Kundra
8 Replies
LEARN ABOUT FREEBSD
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1)NAME
ppmtosixel - convert a portable pixmap into DEC sixel format
SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC
LJ250 color inkjet printer.
If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table
begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file.
OPTIONS -raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com-
pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni-
tude larger than a compressed file and prints much slower.
-margin
If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci-
fied, a 1.5 inch left margin will offset the image.
PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?.
BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was
greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the
color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation.
SEE ALSO ppm(5)AUTHOR
Copyright (C) 1991 by Rick Vinci.
26 April 1991 ppmtosixel(1)