12-23-2008
* dosnt match anything. its a quatifier, that menas, zero, or mroe
z* matchs
""
"z"
"zz"
"zzz"
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I need to find out if a variable contains a certain text string, then do something about it.
Here is what I mean, but I don't know how to get a "contains" operator
# We have volumes called:
# /Volumes/BackupsA_K
# /Volumes/BackupsL_Z
# /Volumes/Backups_Admin
# (could be more, etc)... (5 Replies)
Discussion started by: TheCrunge
5 Replies
2. Shell Programming and Scripting
I am trying to check two variables and if both are blank I want to set a flag:
the_f3_pid=`rsh $target ps -ef | grep "f3.eab" | awk '{print $2}'`
the_f7_pid=`rsh $target ps -ef | grep "f7.eab" | awk '{print $2}'`
if ; then
y=1
fi
I get an error:
./script_name: test: 0403-021 ]... (4 Replies)
Discussion started by: rcarnesiii
4 Replies
3. HP-UX
hi,
i was trying to club to test condition with if.
if -o ; then
it is giving me error message, i wanted to ask how can we check two condtions with one if. (1 Reply)
Discussion started by: babom
1 Replies
4. Programming
Hi,
Please clear the 2 questions,
2 Questions,
1) Why the new as a operator? Is there any special reason why it can't be a function like malloc?
2) How are we considering sizeof(),new are as a opearartors? I know + - * / -> , . etc.. are operators, which criteria satisfied by sizeof()... (4 Replies)
Discussion started by: Nagapandi
4 Replies
5. Shell Programming and Scripting
Why the op of the following code is like this ????
i=4 j=-1 k=0
echo $?
echo $?
echo $? (5 Replies)
Discussion started by: lipun4u
5 Replies
6. Shell Programming and Scripting
Dear All,
Good day, Just i would like to know that is there anything called difference operator in awk?
For example, if a file contains 5 columns (as shown below) with both negative and positive values:
Col1 Col2 Col3 Col4 Col5
I need to calculate the difference between Col1 and... (3 Replies)
Discussion started by: Fredrick
3 Replies
7. UNIX for Dummies Questions & Answers
All,
THe below is my script , when i use this i am getting nothing . could any one help me to know what is the use of the << operator below
su - $8 << supo
echo "exportsph $2 $1 $3 $4"
exportsph $2 $1 $3 $4
supo
i also tried as individual command su - userid << supo , when i do... (3 Replies)
Discussion started by: arunkumar_mca
3 Replies
8. UNIX for Dummies Questions & Answers
im new to bash scripting and im just using online tutorials and trial and error. i wanted to write a script to read numbers from a file and find their sum:
#!/bin/bash
theSum=0
for line in $(cat numbers.txt)
do
let "theSum = theSum + $line"
echo "$line"
done
echo "The sum is... (3 Replies)
Discussion started by: astrolux444
3 Replies
9. Shell Programming and Scripting
hi,
I got a requirement to change existing script like below to search additional pattern "DB select". i tried using \| opearator but it is not working :(. Below is the existing code
echo $(cat ${1} |sed -n '/Error in/ {
N
N
N
/Too many/ {
p
... (5 Replies)
Discussion started by: shyamxtasy
5 Replies
10. UNIX for Dummies Questions & Answers
Can anyone guide me whats happening in this program given below. I got the Output 7 7 12 49... i was expecting 5 16 9 25.
First is simple (3+1)*(3+1)
Second is again 3*3; i =4 now
Third i =5 then 5*5;
i don't know where i am going wrong!
#include<stdio.h>
#define PRODUCT(x) (x*x)
int... (5 Replies)
Discussion started by: Abhishek_kumar
5 Replies
APM(8) BSD System Manager's Manual APM(8)
NAME
apm, zzz -- Advanced Power Management control program
SYNOPSIS
apm [-abdlmsSvz] [-f sockname]
zzz [-Sz] [-f sockname]
DESCRIPTION
The apm program communicates with the Advanced Power Management (APM) daemon, apmd(8), making requests of the current power status or placing
the system either into suspend or stand-by state. The apm tool is only installed on supported platforms.
With no flags, apm displays the current power management state in verbose form.
Available command-line flags are:
-z Put the system into suspend (deep sleep) mode.
-S Put the system into stand-by (light sleep) mode.
-l Display the estimated battery lifetime in percent.
-m Display the estimated battery lifetime in minutes.
-b Display the battery status: 0 means high, 1 means low, 2 means critical, 3 means charging, 4 means absent, and 255 means
unknown.
-a Display the external charger (A/C status): 0 means disconnected, 1 means connected, 2 means backup power source, and 255 means
unknown.
-s Display if power management is enabled.
-v Request more verbose description of the displayed states.
-f sockname Set the name of the socket via which to contact apmd(8) to sockname.
-d Do not communicate with the APM daemon; attempt instead to manipulate the APM control device directly.
The zzz variant of this command is an alternative for suspending the system. With no arguments, zzz places the system into suspend mode.
The command line flags serve the same purpose as for the apm variant of this command.
This command does not wait for positive confirmation that the requested mode has been entered; to do so would mean the command does not
return until the system resumes from its sleep state.
FILES
/var/run/apmdev is the default UNIX-domain socket used for communication with apmd(8). The -f flag may be used to specify an alternate
socket name. The protection modes on this socket govern which users may access the APM functions.
/dev/apmctl is the control device which is used when the -d flag is specified; it must be writable for the -d flag to work successfully.
/dev/apm is the status device used when the socket is not accessible; it must be readable to provide current APM status.
SEE ALSO
acpi(4), apm(4), apmd(8)
Intel Corporation and Microsoft Corporation, Advanced Power Management (APM) BIOS Interface Specification, Revision 1.2, February 1996.
HISTORY
The apm command appeared in NetBSD 1.3.
The APM specification first appeared in 1992. The last update to the standard was made in 1996 - the same year when it was superceded by the
ACPI 1.0 standard. Thereafter power management on IBM-compatible personal computers has relied on ACPI, implemented in NetBSD by the acpi(4)
subsystem. The acpi(4) provides an emulation layer for the legacy apm.
BSD
March 20, 2010 BSD