I have a situation where i need to read line by line from a text pad and with each line , i need to take inputs from command line and do some process.
Using below code i am not able to use 'read' keyword twice.
Can any one please help
Code:
cat > t.txt
a
d
c
> cat > t.ksh
while read line
do
echo "press oprion"
read kind
echo "kind=$kind
echo "line=$line
done<t.txt
> sh t.ksh
press oprion
kind=d
echo line=a
press oprion
kind=
echo line=c
I think I saw another post where someone said he an issue with a 'while within a while' but there were no solutions on it.
I have an input file of data columns separated by pipes "|" and I want to set each column to a variable and do something with it. This I can do.
When I get to a certain... (5 Replies)
Hi
I am using while loop, below, to read lines from a very large file, around 400,000 rows. The script works fine until around line 300k but then starts giving incorrect result.
I have tried running the script with a smaller data set and it works fine. I made sure to include the line where... (2 Replies)
Hello Everyone,
i need to read specific number of lines ( always serialized ; i.e from 10 to 20 or from 34 to 44 ) in a file , where the first line is found by grep 'ing a keyword.
example
file.txt
------------------------------------------------------------------
--header
this is the... (7 Replies)
Hi! I've got a problem with reading from serial port, when I run this code on Digi ConnectCore Wi-9c. But writing to serial port is Ok. By the way, when I'm running this code on "full" Linux it is working Ok - I can read and write to serial without mistakes. Where is a problem?
uname -a:... (3 Replies)
Hi,
This is the script and the error I am receiving
Can anyone please suggest ?
For the exmaple below assume we are using vg01
#!/bin/ksh
echo "##### Max Mount Count Fixer #####"
echo "Please insert Volume Group name to check"
read VG
lvs |grep $VG | awk {'print $1'} > /tmp/audit.log
... (2 Replies)
I'm using while read in a script to create a file but when I paste on the screen it echos out different than the data. The file is created correctly and the script does as it should. Just trying to resolve what's being show on the screen.
while read FILES
do
echo... (3 Replies)
Hi
I want to implement something like this:
if( keyword1 exists)
then
check if(keyword2 exists in the same line)
then replace keyword 2 with New_Keyword
else
Add New_Keyword at the end of line
end if
eg:
Check for Keyword JUNGLE and add/replace... (7 Replies)
Heyas
With my forum search term 'issue with leading dash' i found 2 closed threads which sadly didnt help me.
Also me was to eager to add the script, that i didnt properly test, and just now figured this issue.
So i have this code:
if ]
then while read line
do line="${line/-/'\-'}"... (7 Replies)
Hello,
I have used a chunk of ksh script similar to this in many places without any issue:
while :
do
print;
read OPTION?"Enter a number (q to quit): "
expr ${OPTION} + 1 >/dev/null 2>&1
CHECKVAL=$?
if }" != ${OPTION} ]; then
... (2 Replies)
Hello,
I have an ffmpeg bash script which is working nice and
I need to do the same for other sources.
To create new scripts and to deal with multiple bash files sounds not logical. It is a bit hard to manage for me..
I wondered if it was possible to make my input file as variable.
Then I... (1 Reply)
Discussion started by: baris35
1 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)