03-22-2006
Quote:
Originally Posted by douknownam
my understanding is that it cats % and outputs to abc.txt... assuming % is referencing some file.
and what about '<<'? what's that all about?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hi everybody,
how do i open a txt file writen in unix on to a web page
so when i want to view the txt file that was generated from a shell program, that file is open on a web page
do i use the cat > filename.html command to do this, or is there another way
many thanks
:D (2 Replies)
Discussion started by: alexd
2 Replies
2. UNIX for Dummies Questions & Answers
All -
how do i save the file after i used CAT command line to modify?
Thanks :confused: (2 Replies)
Discussion started by: March_2007
2 Replies
3. AIX
I would like to append some statement into 1 single file so that it can be concatenate together in 1 word. I have tried >> but it will seperate my 2 statement into 2 rows.
# cat abc.txt cde.txt > result.txt
where abc.txt is "abcde" and cde.txt is "12345"
the result should come out as... (3 Replies)
Discussion started by: kwliew999
3 Replies
4. UNIX for Dummies Questions & Answers
Hi
Can anybody tell the difference between Difference between cat , cat > , cat >> and touch command in UNIX?
Thanks (6 Replies)
Discussion started by: skyineyes
6 Replies
5. UNIX for Advanced & Expert Users
Dear All
I have two text files File1.txt and File2.txt . I am concatenating the two files and making it as single file Cat_File.txt. Now i need to keep joined file in two different path. that is I need to use cat command only once ,but store joined file in two different locations. Since... (3 Replies)
Discussion started by: tkbharani
3 Replies
6. Shell Programming and Scripting
Hello,
So I sorted my file as I was supposed to:
sort -n -r -k 2 -k 1 file1 | uniq > file2
and when I wrote
> cat file2
in the command line, I got what I was expecting, but in the script itself
...
sort -n -r -k 2 -k 1 averages | uniq > temp
cat file2
It wrote a whole... (21 Replies)
Discussion started by: shira
21 Replies
7. UNIX for Advanced & Expert Users
I believe I used the cat command to append a file beside another file (instead of below it) but I did not document it any where and I can't remember exactly how I did it. Has anyone else done this? I have tried all the cat options individually with no luck. It may be a combination of options.
... (2 Replies)
Discussion started by: nickg
2 Replies
8. Shell Programming and Scripting
I want to concatenate 100 files to one file and append file name in each record to find out which file it came from
for a in $(<shal_group)
do
cat $a >> bigoutput.group
The above code put all files in one file but i want file name appended to each file
Record should be like this... (3 Replies)
Discussion started by: pinnacle
3 Replies
9. Homework & Coursework Questions
I have a file "sample.txt" with the content as below:
Hi
This is a Sample Text.
I need a single command using cat which serve the following purpose.
1.display the contents of sample.txt
2.append some text to it
3. and then exit
But, all should be served by a sinle... (1 Reply)
Discussion started by: ashok.g
1 Replies
10. AIX
Hi.
How can i write a command on AIX like the one i did at linux that find string in a file and show me that string, and return 3 lines before and 4 lines after that string.
my linux command is:
/bin/cat <filename> | tail -150 | grep -B2 -A8 "<string to look for>"
Example:
/bin/cat ... (10 Replies)
Discussion started by: yechi_r
10 Replies
LEARN ABOUT SUNOS
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)