hello all,
i am having a variable with a value of 0000010000 and if i add the variable with some no:
suppose
i=0000010000
n=`expr $i + 1`
echo $n
the output i am reciving is 10001 .it deletes all the zeros
but i need result as 0000010001..
please help me...
thanks in... (3 Replies)
Hi,
Here is a tough requirement , to be served by bash script.
I want to perform 3,00,000 * 10,000 searches.
i.e. I have 10,000 doc files and 3,00,000 html files in the file-system. I want to check, which of the doc files are referred in any html files. (ex- <a href="abc.doc">abc</a>)... (3 Replies)
Hi,
I have a file with thousands of lines like this:
Chr1 477515 . ACCCC ACCC 17.7 . INDEL;DP=17;AF1=1;CI95=0.5,1;DP4=0,1,0,3;MQ=32;PV4=1,0.036,1,1
Chr1 481987 . A AAAT 62 . INDEL;DP=11;AF1=1;CI95=0.5,1;DP4=0,0,1,3;MQ=41
I want to make a file with... (2 Replies)
I have a file like this
product qty1 qty2 value
cola 50 25 1
pepsi 100 75 2
muffin 25 30 0.5
would like to do the following operations with one line command
1) disply the line having "Qty1" greater than or equal to 50
2) display the line Qty1 - Qty2 ... (2 Replies)
Hi,
does any one know the environmental parameter that I have to set so as to make sure the file operations run properly within the script.
right now when I am doing a cat from within the script nothing happens, same is the case when I do a grep. when I am doing awk '{print $0 }' its printing... (1 Reply)
I have 2 numbers
xmin = 0.369000018
xmax = 0.569000006
and want to calculate
(xmax- xmin) / 5.0
I have tried using $(( )) but is always giving an error (8 Replies)
hi,
I want to do multiple arithmetic operations in a single line. I tried with the following line
total_size=`expr ($total_size + $file_size) / 1024`
this line is throwing me error.
Im working on korn shell. Can i know how to do multiple arithmetic operations in a single line (2 Replies)
Hi
I want to perform arithmetic operations on output of `wc -l`.
for example
user046@sshell ~ $ ls -l
total 0
where "total 0" will increase one line in wc -l
filecount=`ls -l | wc -l`
here $filecount will be 1 but is should be 0
how to get rid of it ? (1 Reply)
i am having a varialbe a , which is input to my file
i want to multiply this input with value .43, and assign it to variable b.
i tried it as below:
#!/bin/sh
a=$1
b=`expr $1\*0.43`
echo b=$b
error : expr: non-integer argument
Please tell me , how to do this.
Thanks (10 Replies)
Discussion started by: rishifrnds
10 Replies
LEARN ABOUT LINUX
alien::package::rpm
Alien::Package::Rpm(3pm) User Contributed Perl Documentation Alien::Package::Rpm(3pm)NAME
Alien::Package::Rpm - an object that represents a rpm package
DESCRIPTION
This is an object class that represents a rpm package. It is derived from Alien::Package.
FIELDS
prefixes
Relocatable rpm packages have a prefixes field.
METHODS
checkfile
Detect rpm files by their extention.
install
Install a rpm. If RPMINSTALLOPT is set in the environement, the options in it are passed to rpm on its command line.
scan
Implement the scan method to read a rpm file.
unpack
Implement the unpack method to unpack a rpm file. This is a little nasty because it has to handle relocatable rpms and has to do a bit
of permissions fixing as well.
prep
Prepare for package building by generating the spec file.
cleantree
Delete the spec file.
build
Build a rpm. If RPMBUILDOPT is set in the environement, the options in it are passed to rpm on its command line.
An optional parameter, if passed, can be used to specify the program to use to build the rpm. It defaults to rpmbuild.
version
Set/get version.
When retreiving the version, remove any dashes in it.
postinst
postrm
preinst
prerm
Set/get script fields.
When retrieving a value, we have to do some truely sick mangling. Since debian/slackware scripts can be anything -- perl programs or
binary files -- and rpm is limited to only shell scripts, we need to encode the files and add a scrap of shell script to make it
unextract and run on the fly.
When setting a value, we do some mangling too. Rpm maintainer scripts are typically shell scripts, but often lack the leading shebang
line. This can confuse dpkg, so add the shebang if it looks like there is no shebang magic already in place.
Additionally, it's not uncommon for rpm maintainer scripts to contain bashisms, which can be triggered when they are ran on systems
where /bin/sh is not bash. To work around this, the shebang line of the scripts is changed to use bash.
Also, if the rpm is relocatable, the script could refer to RPM_INSTALL_PREFIX, which is set by rpm at run time. Deal with this by
adding code to the script to set RPM_INSTALL_PREFIX.
arch
Set/get arch field. When the arch field is set, some sanitizing is done first to convert it to the debian format used internally. When
it's retreived it's converted back to rpm form from the internal form.
AUTHOR
Joey Hess <joey@kitenet.net>
perl v5.12.3 2011-06-11 Alien::Package::Rpm(3pm)