I would like to know how to take information from a filename and place it into the text of the same file. Let's say I have a file called height_2_width_1.txt containing data that is related to a height of 2 and a width of 1, and the text originally looks like this:
Quote:
3 4
2 5
5 2
7 5
where these two columns are two other variables (depth and brightness, or whatever). Basically, I would like to add two columns to this file, based on the height and width of the first file, such that the end result would look like this:
Quote:
2 1 3 4
2 1 2 5
2 1 5 2
2 1 7 5
So, if I did this, I would have the height 2 and width 1 information put in columns next to the other data related to these particular heights and weights. So a case with a depth of 3 and brightness of 4 would have the height of 2 and width of 1 prepended to it.
And then I have multiple files named height_X_width_Y.txt, such that I have an array for height and width (let's say 1,2,3,4 for each X and Y variable, so I have the following files: height_1_width_1.txt, height_1_width_2.txt, etc). I would like to create a perl script that does the same thing for all of the files. I'm just not sure what the best way would be to do this would be. I hope this made sense.
This is my attempt thus far, but I haven't been able to get it to work:
Code:
#!/usr/bin/perl -w
my @height=(1,2,3,4);
my @width=(1,2,3,4);
foreach my $height (@height)
{
foreach my $width (@width)
{
$filename = "height_${height}_width_${width}.txt";
system("sed -i "" '1,4 ${height} ${width}' $filename");
}
}
Hello Dudes,
I have a task to make a unix shell script that should search for a
specific TEXT in a file.If that TEXT is found, shell script should add
a comment statement before that TEXT line.
Ex : LINE 1 xxxxx
LINE 2 xxxx CALL xxxx
LINE 3 xxxx PERFORM UNTIL
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I'm moving a list of files of some extension and I wish to output the moved filenames into a text file, I tried using the command below, but after all the files are moved, I got a blank file.
find /abc/temp -type f -mtime +365 \( -name "*.bak" -o -name "*.log" \) -exec mv -f {} /junk \; >>... (3 Replies)
Hi, all:
I've got two folders, folder A contains some image files (say, 100 files) in .jpg format;
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Hi,
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Hi all,
I have little experience with Scripting so hoping someone may be able to help me or point me in the right direction.
I have a shell script which was outputting uncaught exceptions to a log file.
$JAVA_MAIN_CLASS > $LOGNAME 2>&1
What I want to be able to do is prepend a timestamp on... (8 Replies)
Hi All
I've googled around for this and can't see a way of doing it.
I have a file that contains a number of records that are layed out something like the following.
/path/to/directory/that/contains/a/file/I/need/filename.pdf
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I have a number of dat-files, such as abc.dat, def.dat etc, as follows:
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2011-07-02 101.0
2011-07-03 101.7
I want to prepend the file with the base file name; so for abc.dat it would result in the following:
abc 2011-07-01 100.0
abc 2011-07-02 101.0
abc 2011-07-03 ... (5 Replies)
Hello Mates
I am trying to write a script, which appends and prepends the text in a file.
I tried testing with a small file and it worked fine.
but for the large file, the script is wiping the entire file and adds only the word to be appended in the file.
mv $file_name $file_name.bak
sed... (6 Replies)
Entry level scripter. Any help appreciated.
for file in *; do rename '4321_' '' $file ; done
Doesn't work for files with spaces in between
FOr eg
4321_1004.dat is renamed to 1004.dat but
4321_1004 2008.dat stays the same (1 Reply)
Discussion started by: davnavin
1 Replies
LEARN ABOUT OSX
glviewport
GLVIEWPORT(3G) OpenGL 3.3 GLVIEWPORT(3G)NAME
glViewport - set the viewport
C SPECIFICATION
void glViewport(GLint x, GLint y, GLsizei width, GLsizei height);
PARAMETERS
x, y
Specify the lower left corner of the viewport rectangle, in pixels. The initial value is (0,0).
width, height
Specify the width and height of the viewport. When a GL context is first attached to a window, width and height are set to the
dimensions of that window.
DESCRIPTION
glViewport specifies the affine transformation of x and y from normalized device coordinates to window coordinates. Let x nd y nd be
normalized device coordinates. Then the window coordinates x w y w are computed as follows:
x w = x nd + 1 width 2 + x
y w = y nd + 1 height 2 + y
Viewport width and height are silently clamped to a range that depends on the implementation. To query this range, call glGet() with
argument GL_MAX_VIEWPORT_DIMS.
ERRORS
GL_INVALID_VALUE is generated if either width or height is negative.
ASSOCIATED GETS
glGet() with argument GL_VIEWPORT
glGet() with argument GL_MAX_VIEWPORT_DIMS
SEE ALSO
glDepthRange()
COPYRIGHT
Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/.
OpenGL 3.3 03/08/2011 GLVIEWPORT(3G)
06-02-2011
