If bourne shells doesn't have math then how am I able to execute statements like
By using the expr external, like I said.
Quote:
And is it possible to find x to the power of y using expr function (or in any possible way in bourne shell except "for" loop) where x and y are two numbers read from the terminal?
Certainly, by running a loop which multiplies x against itself y times.
how to use if-loop in bourne shell with multiple conditions like follows
if
then
commands
fi
it gives me an error
test: ] missing
then i put
if ]
it gives me an error
[[ not found
kindly i need the syntex for the bourne shell (5 Replies)
I have file named script1 as follows:
#!/bin/bash
count="0"
echo "hello"
echo "$count"
while
do
echo "$count"
count=`expr $count + 1`
done
-----------
when I run it, I get
./script1: line 9: syntax error near unexpected token `done'
./script1: line 9: `done'
I... (6 Replies)
I do not claim to be an expert, but I have done things with scripts that whole teams of folks have said can not be done. Of course they should have said we do not have the intestinal fortitude to git-r-done.
I have been using UNIX actually HPUX since 1992. Unfortunately my old computer died and... (7 Replies)
Hello Everyone....
I am trying to print a number sequence in following format using for loop.
I am using a bourne shell. I tried following for loop condition but it is bash syntax.
for (( i=0; i<=5; i++ ))
It is giving syntax error.
Kindly help with the syntax of "for"... (7 Replies)
Hello
I am having issues with a script I'm working on developing on a Solaris machine.
The script is intended to find out how many times a particular user (by given userid) has logged into the local system for more than one hour today.
Here is my while loop:
last $user | grep -v 'sshd'... (7 Replies)
Hello,
I am relatively new to UNIX scripting and am learning a lot. I have already tried several searches on this website and have tried various syntax options suggested to no avail. I am obviously not writing the script correctly. I really do appreciate any and all the help.
Below is an... (8 Replies)
Hello forum,
I hope my problem is easy to solve for someone in here!
My main task is to copy a large amount of imap-accounts from one server to another. There is a tool (Perl) called imapsync which does the job exellent. Unfortunately I'm only able to run it on one account at a time.
After... (3 Replies)
Hi,
I am using a for loop to manipulate files data_1.txt through data_100.txt. The for-loop is set up like this:
for i in {1..100}; do cut -f1 data_$i.txt > output$i.txt
I get the following error message when I run the code:
cannot open `data.txt' for reading: No such file or directory... (4 Replies)
Dear all Linux lover,
I am a new learner to Bash Shell script and I would like to writing a script to to repeat my script.
This mean I would like to have multiple same of result after running the .sh.
#######
TIMES_NO=0
echo -n "Please enter the number for times to repeat ?"
read... (10 Replies)
I have a loop with cases
I am working on Bourne shell
for file in *.${Today}*.csv *.${Today}*.txt\
do
case ${file} in
sun_detail)
do something
;;
sum)
do something
;;
mod)
do something
;;
*)
do something
;; (5 Replies)
Discussion started by: digioleg54
5 Replies
LEARN ABOUT SUNOS
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)