A few things: first, it's recommended to use $() instead of ``, since you can nest it.
Second, whenever the contents of a variable or a command output might contain a whitespace (which is also a parameter separator) that has to be preserved, surround it with double quotes.
Third, (not applicable in this case) whenever you list files, and the number of files might in extreme cases be very high, use something else than ls, or you'll fail on an "argument list too long" error.
Hi all,
I have a file of the following format -
EXPRPT:SCN:1.1706E+10:SEQ_START:121652:SEQ_END:121664:0
( This file name is variable and changes daily)
Now in the same directory I have another set of files of the format -
EXPRPT.log.0001.0000121669
Now what I am trying to do is to ... (2 Replies)
here is a small script:
if ; then
echo please enter an argument
fi
if [ "$1" = "tom"; then
a=$1
echo $a
fi
here is my question. if the script name is j.sh and I run it : j.sh from shell prompt: without a parameter: it prints please enter an argument but if I go with . j.sh (current... (1 Reply)
Hi,
I am new to unix shell scripting. I just want a little script to check the no. of processes are equal to 8, then echo a successful message otherwise echo a unsuccessful message. Please help.
Thanks. (3 Replies)
The following Script takes each extension and determine what category it
belongs and then moves it into a directory based on the extension.
(for eg. 1.sh, 5.sh, 9.sh together; 4.csh, 120.csh, 6.csh together and 7.ksh, 2.ksh, 59.ksh together) and moves them to their respective directories viz.... (2 Replies)
#!/bin/ksh
for i in *.log*
do
ls $i|sed 's/\.log$//g' | while read file
do
echo "file $file is Running" >> lls.txt
echo "***************">> lls.txt
done
done
------------------------------------------------------------------
the output is :
file AdapterCCProvisioningInterface... (9 Replies)
I need to write a small shell script which does the following :
I have a file : root/var/log/ocmp/ocmpclient.log
This is a log file which is continuosly getting updated . I have to keep looking into this file all the time. I have to look for four keywords, "File Detected", File Sending",... (2 Replies)
Hello all,
i have a batmail process running on my machine(java process).
i just need a script we should detect whether the batchnail is running or not.If not it should restart it.
Can anyone assist me on this? (1 Reply)
Hi I have the below file
Name=abc
Yr=2011
Mon=05
My script should be in such a way that whenever I run it then
Month should increment by 1 and if the month is 12 then when
I run the script then year should incremented by 1 and month
Should become 01(I.e jan)
Thanks for the help in... (6 Replies)
Hi Guys,
I need to understand below scipt:-
-bash-3.00$ cat rsync-copy.ksh
#!/usr/5bin/ksh
batch <<%EOF%
echo "/usr/local/bin/rsync --rsync-path=/usr/local/bin/rsync -a --stats /usr/openv/ /OpenvBCK" > openv.LOG
# CG /usr/local/bin/rsync ... (6 Replies)
Discussion started by: manalisharmabe
6 Replies
LEARN ABOUT ULTRIX
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)