#!/bin/sh
# Save first two parameters
A="$1"
B="$2"
shift 2 # Get rid of first two parameters
while [ "$#" -gt 0 ]
do
sed "s/$A/$B/g" $1 > $1.new
shift
done
and saved it.
I then ran the program ~cs252/bin/scriptAsst.pl
and it started running the tests. When it got to test 28 it says sub3 produced incorrect output on test 28: /Unix/Unix/sub3 '3' '9' '_aardvark.cpp'
Im guessing that it was trying to replace all occurances of '3' with '9' but the output didn't come out correct.
---------- Post updated at 07:21 PM ---------- Previous update was at 06:57 PM ----------
Basically what i need is a for loop to allow it to run through as files as it wants to. Using the following code.
Code:
#!/bin/sh
File1="$3"
File2="$4"
File3="$5"
testNum="$File1"
for x in $*
do
echo $x
A="$1"
echo $A
B="$2"
C="$3"
echo "$A" | sed -e 's/\([*.[^$]\)/\\\1/g' > temporary
A="`cat 'temporary'`"
rm temporary
echo "$A"
sed "s/$A/$B/g" "$C" > myFile.txt.updated
mv myFile.txt.updated "$C"
cat "$C"
done
I would like to make the same change in multiple shell script files and would like to know if anyone can be of some help? I would appreciate it. (4 Replies)
I have a shell script similar to:
#!/bin/sh
a=1
source a1.sh -- Modifies a
source a2.sh -- Modifies a
echo "After execution, value of a is $a"
What i need is a1.sh script modify the same variable a and same with a2.sh. Now the echo "After execution, value of a is $a" should print the... (1 Reply)
I have four scripts to run.
My 1st script will make script2 and script3 to run. I am setting a cron job for this script1 to run continuously.
This script1 will check for 2 text files and based on the existance of those text files it will initiate the script2 and script3.
Now my doubt is that... (2 Replies)
Hi,
I need help to split lines from a file into multiple files.
my input look like this:
13
23 45 45 6 7
33 44 55 66 7
13
34 5 6 7 87
45 7 8 8 9
13
44 55 66 77 8
44 66 88 99 6
I want to split every 3 lines from this file to be written to individual files. (3 Replies)
I am learning how to write shell scripts and have come across an issue. I'm trying to write a script that looks for a directory called public_html, and if it finds one, to print the number of lines that contain applet tags (containing '<applet') in all files that end in either .html or .htm that... (7 Replies)
Hi All,
After reading that the sort command in Linux can be made to use many processor cores just by using a simple script which I found on the internet, I was wondering if I can use similar techniques for programs like the awk and sed?
#!/bin/bash
# Usage: psort filename <chunksize>... (7 Replies)
Hi, I was hoping that someone could help me. I have a problem that i am trying to work on and it requires me to change text within multiple files using sed. I use the program to change an occurance of a word throughout different files that are being tested. At first i had to Create a new script,... (1 Reply)
Hi every one, i am new to shell script. my people given a task to write a shell script that should execute number of shell scripts in that. in that, if any shell script is failed to execute, we have to run the main script again, but the script should start execute from the failed script only..
it... (1 Reply)
Hi every one, i am new to shell script. my people given a task to write a shell script that should execute number of shell scripts in that. in that, if any shell script is failed to execute, we have to run the main script again, but the script should start execute from the failed script only..
it... (6 Replies)
I am not sure what I am doing wrong here. The code should work fine. I have been making small changes insuring that each new bit works. Now running my sed through multiple files I am getting incorrect output. Any help and instruction would be greatly appreciated.
The problem -
Generalize... (10 Replies)
Discussion started by: Lycopene
10 Replies
LEARN ABOUT REDHAT
ppmquantall
ppmquantall(1) General Commands Manual ppmquantall(1)NAME
ppmquantall - run ppmquant on a bunch of files all at once, so they share a common colormap
SYNOPSIS
ppmquantall [-ext extension] ncolors ppmfile ...
DESCRIPTION
Takes a bunch of portable pixmap as input. Chooses ncolors colors to best represent all of the images, maps the existing colors to the new
ones, and overwrites the input files with the new quantized versions.
If you don't want to overwrite your input files, use the -ext option. The output files are then named the same as the input files, plus a
period and the extension text you specify.
Verbose explanation: Let's say you've got a dozen pixmaps that you want to display on the screen all at the same time. Your screen can
only display 256 different colors, but the pixmaps have a total of a thousand or so different colors. For a single pixmap you solve this
problem with ppmquant; this script solves it for multiple pixmaps. All it does is concatenate them together into one big pixmap, run
ppmquant on that, and then split it up into little pixmaps again.
(Note that another way to solve this problem is to pre-select a set of colors and then use ppmquant's -map option to separately quantize
each pixmap to that set.)
SEE ALSO ppmquant(1), ppm(5)BUGS
It's a csh script. Csh scripts are not portable to System V. Scripts in general are not portable to non-Unix environments.
AUTHOR
Copyright (C) 1991 by Jef Poskanzer.
27 July 1990 ppmquantall(1)
08-09-2012
