addition Post: 302222376

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addition in sh shell

I have to create un counter and I am unable to do an additition: #!/bin/sh count=$1 while ] do echo $count $count=$count+$1 done

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Hi all, I am getting following output by using commands like sort, uniq and awk to the standard output. 110 d 40 a 59 c 9 b 3 e Now at the end I would like to add all the numbers in column 1 and display the count of all numbers i.e. (110 + 40 + 59 + 9 + 3). Also the output may...

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Hi all, I am very new to shell programming and trying to learn out the basics. I tried this: $ echo `expr 20 + 30` and it worked. But when i tried this,it does not work. $ a=20 $ b=30 $ echo `expr a + b` The error is: expr: non-numeric argument I cant understand why its...

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Hi, I want to add 3 new fields in the existing file.Please find the example below. input: UID: ABCD UNAME: XYZ Desired Output Tmiestamp: 20101208 UID: ABCD UNAME: XYZ DEPTNO:40 ModifyTImestamp:20101209 If you see the above i have added the 3 columns manually in the output section...

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Hi I need to do the following substitution I have to look for line starting with ABC and add 4 ":" before the first occurence of "+"in that line Input ABC:12:Lambert:C278472:1357:0:0:0:0:2:N::::N:9045123:NAP::+DEF output ABC:12:Lambert:C278472:1357.00:0.00:0:0:0:2:N::::N:9045123:NAP::::::+DEF...

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by the script, two files Q1 and Q2 will be generated on the system. Q1 will contain an integer number and Q2 also contain an integer number. i would like to add those numbers and put into new file. excerpt from my script 22 subcount=`echo $dir/Q$qid.txt` + `echo $dir/Q$qid.txt` 23 echo...

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Limitation in addition

whats wrong with this addition? Whats the maximum number of digits can be handled? pandeeswaran@ubuntu:~/Downloads$ const=201234454654768979799999 pandeeswaran@ubuntu:~/Downloads$ let new+=const pandeeswaran@ubuntu:~/Downloads$ echo $new -2152890657037557890 pandeeswaran@ubuntu:~/Downloads$

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Hello all I have a statement : ARRAY_MOUNT_POINT_NAME=`df -h | awk '{print $6}'| head -`expr $i+2` |tail -1` when the value of i=0 , I want the head argument to be at -2 . Using the expr statement isnt working. Help !

LEARN ABOUT MINIX

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)

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