Problem in bash script Post: 302472865

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

bash script problem

hi I am writing a bash script that uses dialog to get user input an diplay messages to user. I have a small problem dialog --inputbox "blabla" 20 50 2> /tmp/output VAR="'cat /tmp/output'" mkdir $VAR the code below requests user for a directory path to be created. But, if the user uses...

2. UNIX for Dummies Questions & Answers

Bash script argument problem

I'm having problems with bash scripts. If a bash script is called with no arguments, I always get "PHIST=!" as the first argument (i.e. this is what $1 equals). Why? Where does this come from, and how can I fix it? Nothing in the bash man pages refer to this mysterious default argument.

3. Shell Programming and Scripting

Simple bash script problem

#!/bin/bash cd /media/disk-2 Running ./run.sh it's not changing directory.Why?

4. Shell Programming and Scripting

problem using variables in bash script

I am using variable to give the location of the file I am using but I get error. Here is the code: LogFile=/tmp/log.email echo -e "could not close the service - error number $error \n" > $LogFile well this is not all the code but is enough because the problem start when I try to use the...

5. Shell Programming and Scripting

help with a bash script problem

hi to everyone :) i am new to linux and bash and i am trying to build a bash script, that is quite similar to the well known cmd 'split' ... ;) it is now already "working" ... i can use it like: ./splitfix.sh -v -s 10 foo ./splitfix.sh -s 10 -v foo ./splitfix.sh -s 10 foo ./splitfix.sh -v...

6. Shell Programming and Scripting

Problem using grep in bash script

When it comes to programing and UNIX, I know just enough to be really really dangerous. I have written a python script to parse through a file that contains ~1 million lines. Depending on whether a certain string is matched, the line is copied into a particular file. For the sake of brevity,...

7. Shell Programming and Scripting

Problem with Bash Script.

Hi guys! I'm new to the forum and to the Bash coding scene. I have the following code paths=/test/a paths=/test/b keywords=\"*car*\" keywords=\"*food*\" for file in `find paths -type f -ctime -1 -name keywords -print 2>/dev/null` do #.... do stuff here for every $file found...

8. Shell Programming and Scripting

Help with bash script problem

Hi, Below is my bash script: cat run_all.sh if && ; then Number_Count_Program $1.results $2.results > $1.$2.counts else Number_Split_Program $1.results $2.results > $1.$2.split fi After I run the following command: ./run_all.sh A B ./run_all.sh: line 1: Anybody advice to edit...

9. Shell Programming and Scripting

Bash/awk script problem

Hi, I have 100 files containing different values in single column, I want to split those files in two separate files (file2 and file3) based on average value of first column of each file, for those files I am working on the following script #bin/bash for memb in $(seq 1 100) do awk...

10. UNIX for Beginners Questions & Answers

Array problem in Bash Script

I am trying to write a Bash Script using a couple of arrays. I need to perform a countdown of sorts on an array done once daily, but each day would start with the numbers from the previous day. This is what I'm starting with : #!/bin/bash days=(9 8 7 6 5) for (( i = 0 ; i < ${#days} ; i++...

LEARN ABOUT V7

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

bash script problem

Discussion started by: fnoyan

2. UNIX for Dummies Questions & Answers

Bash script argument problem

Discussion started by: sszd

3. Shell Programming and Scripting

Simple bash script problem

Discussion started by: cola

4. Shell Programming and Scripting

problem using variables in bash script

Discussion started by: programAngel