05-31-2012
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10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Can I use xargs to send a list of commands to a process, to be acted upon individually? Here's what I have: a file that contains numbers, one per line. The desired outcome it to send each number to a DB2 query. I thought xargs would work, but it doesn't. I tried it like this:
cat file | xargs |... (4 Replies)
Discussion started by: jpprial
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2. Shell Programming and Scripting
hi ,
can anyone help me by saying why we use xargs.. is it acing like a place holder..?
thanks,
Krips. (3 Replies)
Discussion started by: kripssmart
3 Replies
3. UNIX for Advanced & Expert Users
I discovered that GNU's xargs has a -P option to allow its processes to run in parallel. Great! Is this a GNU thing, or is it supported by other platforms as well? (4 Replies)
Discussion started by: otheus
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4. Shell Programming and Scripting
hi
i just want to know that how do we use xargs command to find files which are greater than specified memory
in a given directory (6 Replies)
Discussion started by: sumit the cool
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5. Shell Programming and Scripting
Hi,
I have a requirement to RCP the files from remote server to local server.
Also the RCP has to run in parallel. However using 'xargs' retrives 2 file names during each loop. How do we restrict to only one file name using xargs and loop till remaining files.
I use the below code for... (2 Replies)
Discussion started by: senthil3d
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6. Shell Programming and Scripting
Hello there,
Let me show you a simple example of what I am trying to achieve:
1) I have an input text file with some lines:
1 a
2 b
3 c
2) And I want to run a command with these lines as arguments (+ arbitrary extra arguments). For example:
$ command "1 a" "2 b" "3 c" "bye"
I... (7 Replies)
Discussion started by: tokland
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7. Shell Programming and Scripting
hi
Could any one please tell me the option using which we can run multiple commands using xargs
I have list of files, I want to run dos2unix and chmod at one shot on them
I tried google n searched man pages but couldnt really find the solution , please help
right now im doing this
ls... (4 Replies)
Discussion started by: sunilmenhdiratt
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8. Shell Programming and Scripting
Hi,
I want to find some files and then search for some lines in it with a particular pattern and then write those lines into a file. To do this I am using something like this from command prompt directly.
cd /mdat/BVG
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9. UNIX for Dummies Questions & Answers
Hi,
can anyone tell me in detail ?
what the following do in detail ?
I am trying to get a largest number in a list
Thanks
Tao
LARGEST=$(echo $* | xargs -n1 | sort -nr | tail -1) (3 Replies)
Discussion started by: ccp
3 Replies
10. Shell Programming and Scripting
Hi I have multiple files for which I want to use awk for the following:
Read each line in each file- if any of the columns match "PVALUE=" followed by the number, then print the line in case the number following "PVALUE=" is greater than 0.05.
I did the following:
ls *.txt | xargs -I @ -P15... (14 Replies)
Discussion started by: ts89490
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LEARN ABOUT DEBIAN
imgsize
IMGSIZE(1p) User Contributed Perl Documentation IMGSIZE(1p)
NAME
imgsize - read the dimensions of an image in several popular formats
USAGE
imgsize [ -r | -a | -f fmt ] file [ file ... ]
DESCRIPTION
No-brainer to size an image supplied on the command-line. All the real work is done in Image::Size.
REQUIRED ARGUMENTS
imgsize expects file names on the command-line. If more than one file is provided, the file name will be included in the output:
% imgsize dot.gif
width="16" height="16"
% imgsize dot.gif dash.gif
dot.gif: width="16" height="16"
dash.gif: width="32" height="8"
OPTIONS
By default, the width and height are returned as attributes for an IMG tag in HTML, essentially "width="40" height="30"" or similar. The
following options may be used to return alternate formats (all report width first, then height):
"-r"
Return "raw" format data. Just the numbers separated by a single space.
"-a"
Return a Perl-style list of attributes suitable for passing to the "img()" method of the CGI module (see CGI).
"-f" fmt
Pass the string specified in fmt to "sprintf" and thus use it to format the results to your taste. "sprintf" will be passed two
numbers, so any other formatting directives will be lost. The numbers are passed as width first, then height.
EXIT STATUS
imgsize always exits
BUGS
Please report any bugs or feature requests to "bug-image-size at rt.cpan.org", or through the web interface at
http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Image-Size <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Image-Size>. I will be notified,
and then you'll automatically be notified of progress on your bug as I make changes.
SUPPORT
o RT: CPAN's request tracker
http://rt.cpan.org/NoAuth/Bugs.html?Dist=Image-Size <http://rt.cpan.org/NoAuth/Bugs.html?Dist=Image-Size>
o AnnoCPAN: Annotated CPAN documentation
http://annocpan.org/dist/Image-Size <http://annocpan.org/dist/Image-Size>
o CPAN Ratings
http://cpanratings.perl.org/d/Image-Size <http://cpanratings.perl.org/d/Image-Size>
o Search CPAN
http://search.cpan.org/dist/Image-Size <http://search.cpan.org/dist/Image-Size>
o Project page on GitHub
http://github.com/rjray/image-size <http://github.com/rjray/image-size>
LICENSE AND COPYRIGHT
Copying and distribution are permitted under the terms of the Artistic License 2.0
(http://www.opensource.org/licenses/artistic-license-2.0.php <http://www.opensource.org/licenses/artistic-license-2.0.php>) or the GNU LGPL
2.1 (http://www.opensource.org/licenses/lgpl-2.1.php <http://www.opensource.org/licenses/lgpl-2.1.php>).
SEE ALSO
Image::Size
AUTHOR
Randy J. Ray "<rjray@blackperl.com>".
perl v5.14.2 2012-06-08 IMGSIZE(1p)