01-08-2009
nvrmind...I just discovered "printf" :-) :-)
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
There is an error when i am trying to use the shift command in this way:
($1 = -d, $2 = 123, $3 = -c etc etc)
for $arg in $@
do
case $arg in
"-d") shift; (so that the $2 will become the $arg now)
(and while it loop the 2nd time,)
... (1 Reply)
Discussion started by: AkumaTay
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2. Shell Programming and Scripting
Hi Folks,
In shell scripting the maximum no. of command line parameters becomes 9(Am i right). If we want to get more than 9 parameters we use the shift command.
Even here there are two possibilities.
1. Without the use of variables - The arguments are lost and the lost no. is equal to the... (6 Replies)
Discussion started by: Nisha
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3. Shell Programming and Scripting
I am running a program where in I have this command
which is giving error the shift: number is not correct.
can you please tell me how shift actually works?
the line which is giving error is-
set $PARAM; shift; shift; shift; shift; shift; shift; shift; shift
Is it related somewhere to... (2 Replies)
Discussion started by: shrao
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4. Shell Programming and Scripting
hi,
another perl question,
I don't understand the below
while (<FILE>) {
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}
can someone please explain to me how does
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5. UNIX for Dummies Questions & Answers
Hi,
I wrote one script, in between script needs to use 10th and 11th positional parameters, that time i used "shift". Here i am facing the below find problem,
./DataCount.sh: cannot shift
I tried
1) I have read man pages for shift
2) Before but * and **
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Discussion started by: Nagapandi
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6. Shell Programming and Scripting
Hey all, I need some assistance. I'm writing a script to eject tapes from a tape library, but the library is not a queued system and can only eject 15 tapes at a time.
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7. UNIX for Dummies Questions & Answers
Hi,
Firstly, I did a search for this question both on this site and on the internet and have not been able to find a suitable answer that is not general in nature.
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8. Shell Programming and Scripting
Hello Expert
Can any one please explain what is the use of shift command in general terms:
set -- $(ls -t)
shift
rm -Rf $*
what is the use of shift command over here.
Thanks a lot for your help (2 Replies)
Discussion started by: aks_1902
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9. Homework & Coursework Questions
Hello everyone,
I am new to Perl and I am having some issues getting a script to work. I have to create a script that uses an array of 52 cards, "shuffles" the cards (using loops with the pop, shift, and push commands), and prints out the top five. This is not a randomizing of the array just a... (2 Replies)
Discussion started by: Hax0rc1ph3r
2 Replies
10. Shell Programming and Scripting
#!/bin/bash
hostname=$1; shift
for hostname in $1
do
ping $hostname
done
I want to run the above script as hostname.sh yahoo.com google.com cnn.com. I want to shift each hostname to $1. How can do that with above code as currently it's not shifting. (5 Replies)
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LEARN ABOUT CENTOS
pmdiscoverservices
PMDISCOVERSERVICES(3) Library Functions Manual PMDISCOVERSERVICES(3)
NAME
pmDiscoverServices - discover PCP services on the network
C SYNOPSIS
#include <pcp/pmapi.h>
int pmDiscoverServices(const char *service, const char *mechanism, char ***urls);
cc ... -lpcp
DESCRIPTION
Given a PCP service name, as identified by service, and using the type of discovery optionally specified in mechanism, pmDiscoverServices
returns, via urls, a list of URLs representing the services discovered on the network.
service specifies the PCP service to be discovered. Currently, only PM_SERVER_SERVICE_SPEC is supported, which searches for pmcd(1)
servers.
mechanism specifies the style of discovery to be used. Currently, only "avahi" is supported. This searches for services which are broad-
casting using mDNS via avahi-daemon(8). mechanism may also be NULL, which means to use all available discovery mechanisms.
Normally, pmDiscoverServices will return the number of services discovered, else a value less than zero for an error. The value zero indi-
cates that no services were discovered.
The resulting list of pointers, urls, and the values (the URLs) that the pointers reference will have been allocated by pmDiscoverServices
with a single call to malloc(3C), and it is the responsibility of the pmDiscoverServices caller to free(urls) to release the space when it
is no longer required.
When an error occurs, or no services are discovered, urls is undefined (no space will have been allocated, and so calling free(3C) is a
singularly bad idea).
PCP ENVIRONMENT
Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the
file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configura-
tion file, as described in pcp.conf(5). Values for these variables may be obtained programmatically using the pmGetConfig(3) function.
SEE ALSO
PMAPI(3), pmcd(1), pmfind(1), pmGetConfig(3), pcp.conf(5), pcp.env(5) and avahi-daemon(8).
DIAGNOSTICS
EOPNOTSUPP
The specified mechanism is not supported.
Performance Co-Pilot PCP PMDISCOVERSERVICES(3)