Could someone please help me with the following.
I'm trying to figure out how to delete two words within a specific file using sed.
The two words are directory and named.
I have tried the following:
sed '//d' sedfile
sed '//d' sedfile
both of these options do not work.....
... (4 Replies)
Folks,
I've been trying to use the ENV variable with slashes(/) in its value inside the sed substitution..
Sed 's/myval/'$MYVAL'/' file1 >> file.tmp
If MYVAL=<sometext>, it works.
if MYVAL=/home/venkat, it doesnt.
***************************
bash-2.05$ export VAL=/home/venkat... (5 Replies)
Hi,
Please tell me how to use insert option of sed in a shell script on Solaris/AIX plateform.
For example I need to insert few lines on top of every file whose name starts with say "SOL_DEL".
Thanx. (2 Replies)
hello. i have a script, but in solaris i get this message sed: illegal option -- i
whats wrong? With Ubuntu there is no problem. Thanks for help.
#!/bin/bash
for file in $(find /directory..../Test/*.txt -type f)
do
head -n 1 $file | egrep '^#!'
if
then
sed -i '2i\Headertext'... (3 Replies)
I have tried doing this to delete some lines: sed '1,10d' file
Now I want to specify a variable as a line number for example:
lastline=wc -l file
linestart=$lastline - 20
sed '$linestart,$lastlined' file
but this will give error: sed: -e expression #1, char 3: extra characters after... (4 Replies)
Hi,
What does the following command do on files?
sed '1b; $d'
To me it just deletes the last line of the file. If so what is the significance of sed's 'b' option?
Thanks (1 Reply)
Hi,
I am aware that the below are the equivalent in sed for cat command.
sed ':'
sed -n 'p'
Is there any way to emulate the same using "q" option in sed?
Thanks (8 Replies)
Hi i am facing problem with sed -n option could you please help me on this, i have a file test the contents of the file is
width="75">10/0 4/12</td>^M><a href='courtorders/100412zr.pdf' target="_blank">Miscellaneous Order</a></td>^M width="75">10/01/12</td>^M><a href='courtorde... (8 Replies)
Hi,
I have the following command.(Delete all trailing blank lines at the end of a file.)
sed -e :a -e '/^\n*$/{$d;N;ba' -e '}'
I don't understand the logic of this command and also I don't understand why -e is used.
Can you please let me know the logic of this command and why three -e... (5 Replies)
Discussion started by: TomG
5 Replies
LEARN ABOUT REDHAT
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)