What do you normally find in a directory?
You see the directory ..? when you type cd .., where do you find yourself? and what do you see in the now current directory?
Hello all,
I have a situation where I have a web root directory with a few thousand users spread out into 100 subdirectories in a 00/firstname.lastname, 01/firstname.lastname, etc. hierarchy. I suddenly need to make sure that each of these user directories contains a default index.html file... (6 Replies)
if ; then
echo Its Cold for $sid at $c_dst
$jobroot/scripts/abc.sh $sid COLD $c_dst
elif ; then
echo Its Hot for $sid at $h_dst
$jobroot/scripts/abc.sh $sid HOT $h_dst
else
echo No backup for $sid today
wat does foo do ?? (2 Replies)
I need a way to grep -v a list of times/date from the output of postqueue -p that are a few hours old, in order to remove them with postsuper -d.
Right now I have a script that is deleting the previous day of messages left in the queue, which runs once each day.
I want to clean up the job and... (1 Reply)
Hallo,
I need to test a String (a special ip number-string).
So I want to run that:
ipadress=172.0.0.0
# for debugging:
echo $ipadress | egrep -e '172\.?\.??\.??$'
# the test that doesnt work
if test -z `echo $ipadress | egrep -e '172\.?\.??\.??$'` != ""
then
echo "match"
else... (1 Reply)
I am trying to get sed, tr or awk to search a file that contains records with fields delimited by the vertical bar | and replace the occurrences in the records where the vertical bar is preceded by a space " |" with a vertical bar.
Sample data record
zelli |||59 Stonewall Dr ||W Barnstable |MA... (2 Replies)
I'm very very new to shell scripting (about 4 hours)
i've google'd till i can't google no more
is it possible to have store values in a config file .e.g
/etc/foo.conf
data=/home/
mount=/dev/sda1
size=1GB
and access these values from a shell script but also
be able to use... (3 Replies)
Suppose I have a text file that contains the tags <foo> and <bar>. The text file can have unlimted occurances of <foo> and <bar> and looks somthing like this:
<foo>
Some
Text
<foo>
Some
Text
<bar>
Some
Text
<foo>
Some (1 Reply)
I am relatively new to UNIX and am having some really weird results with redirecting output. I will start at the beginning.
I have a file with consists of a list of a chemical name followed by a tab and then a string of characters known as a SMILE string in this format
PS_1 C=C
PS_2 ... (4 Replies)
Sometimes it works for me and sometimes I get this error:
syntax error on line 1, teletype
Basically I've got no idea whats going on, especially at the end of the command: bc
Any help is appreciated (1 Reply)
Discussion started by: phunkypants
1 Replies
LEARN ABOUT OSX
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)