Hi there,
I am a student and currently working on a project. I have a file that contains about 50 filenames. (1.txt, 2.txt, 3.txt ...).
I would like to know how can I store these filenames into a variable using a loop?
I would appreciate if anyone can help me. Thank You.
Regards,
Bib (4 Replies)
I'm relatively new at this scripting game, just need to learn some basic stuff for data handling.
My current need is to write a script that loops through a textfile of filenames, and for each file removes the first line and re-writes that file to a new name.
In fact I could do with knowing... (1 Reply)
Seems simple but I am having difficulty with this one: I am trying to write a single command line argument (which will be a path) - the program should print out the owner of the path.
I can not get anything I write to run.
Please help. (5 Replies)
I have written a script that will email a generic user when a device is "offline". I would like to enhance this by having the script lookup a contact's email and automatically add it to the MAIL_LIST. I am trying to lookup and return data based on a field common in two files
File 1 ... (0 Replies)
Could someone please recommend a very good shell scripting book for me. I would be starting a new job that would require a very good understanding of shell scripting. Please help. (3 Replies)
Hi,
I am newbie in shell scripting
I have a file name like simple.txt which comes from Mainframe systems onto windows dir every 15 minutes daily. File name is same. Every 15 minutes it updates.
I need to write shell script to check if the file arrived every 15 min or not.
If the new file... (4 Replies)
Hi Guys, I want to create a shell script to run multiple jobs in sequence.
Explaination -
If I were to run each jobs individually I would have gone to folder - "abin"(where my shellscript is place) as follows
cd abin
abin > runappeng.sh abc001
Now, I have list of programs which are like... (8 Replies)
Howdy folks,
I'm trying to craft a log file summarisation tool for an application that creates a lot of duplicate entries with only a different suffix to indicate point of execution. I thought I'd gotten close but I'm clearly missing something.
Here's a genericized version:
A text_file... (3 Replies)
Hi all,
I have drill to do and I'll very appreciate your help:
Please create a simple CSV file as follow (3 columns and 4 rows):
A,B,C
A,”B,C”,D
“A,B”,C,D
o A,B,”C,D”
- Please refer to the comma between the quotation marks as a parameter and not as a separator.
- Please provide... (3 Replies)
Please bear with me, I'm a beginner but have had some experience and decent knowledge to understand things as I read them and I'm in the process of trying to learn more. I recently inherited a UNIX server which has a bash script which is part of a crontab schedule that needs to be modified (or... (3 Replies)
Discussion started by: Danylko
3 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)