Comparing and Evaluating Post: 302583270

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

evaluating for a number

I apologize for the simple question but can someone please help me with how to evaluate a number? I will be reading in a file and if a number is >= 100000000, I will do something, if not, I will exit the if statement. Thanks in advance

2. UNIX for Advanced & Expert Users

evaluating core files

Does anyone know any tools or how to really get something out of a core file. I can use strings and look for certain things like out of memory. I am trying to use adb but I can't make heads or tails from it. I guess it is my lack of know how with the adb/mdb debugger. anything would...

3. UNIX for Dummies Questions & Answers

evaluating variables

Hi I have a script in which I have several variables var1 var2 var3 var4 etc...... and field1 field2 field3 field4 etc....... The script similar to this:

4. UNIX for Dummies Questions & Answers

evaluating params

Hi all, I ve a script like.... TBL=employee sql=`cat abhi.sql` \\ abhi.sql contains ------- select a from $TBL echo $TBL echo $sql SQL=`echo $sql` echo $SQL now i want SQL as select a from employee and as select a from $TBL How can I achieve this? Help appriciated

5. Shell Programming and Scripting

* character evaluating too soon - Help!

I have a user defined configuration file, which could contain the following type of entries: directory_001=/a/directory/structure pattern_001=fred* pattern_002=* I have a script which reads the file generically which will loop round loop 1 genvar=�directory� iteration=�001� ...

6. UNIX for Dummies Questions & Answers

evaluating date +%m

how do i evaluate the value of date if ( $(date +%m) > 8 ) then FY_STAMP=FY$(echo $(($(date +%Y) + 1)) | cut -c3-4) else FY_STAMP=FY$(date +%y) fi i want this to make the FY_STAMP increment by 1 if the month is september and up. but cant seem to make it work

7. Shell Programming and Scripting

Evaluating Decimal values

How can I evaluate a decimal value in an if statement? echo "Enter limit:" read limit (enter a decmal value, ie: 2.5) decimallimit=`echo $limit+0|bc|quit` echo $decimallimit if then echo $decimallimit else echo "failed" fi

8. Shell Programming and Scripting

$$# is evaluating to 1 when no value

I have the following in my makefile: RESULT=`../${TOOLS_ROOT_PATH}/ext_tools.sh 11`; \ set $$RESULT > tMp; \ rm tMp; \ if ; then \ echo copying external-local tool: $< $$$*$; \ mkdir -p ${EXTERNAL_LOCAL_BIN_DIR}/$<; \ cp -f...

9. Shell Programming and Scripting

if condition not evaluating as expected

Hi all, Thanks in advance for your time. I have a data file like this: 1 7.465753425 2 8.980821918 1 1.717808219 1 6.550684932 0 5.432876712 I wish to write a bash script to check both columns and output a 1 if col1==1 AND col2<3. Otherwise I want to output a 0. In the above...

10. Shell Programming and Scripting

Evaluating a variable

Does anyone know of a way to force a variable name held in another variable to return the value of the first variable? Best if I give an example, that does not work: /usr/local/bin >cat mike.sh NUM1ref=16 NUM2ref=32 echo "==============" for VAR in NUM1 NUM2 do XXXX=${VAR}ref echo $XXXX...

LEARN ABOUT LINUX

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)