Hi
I am very new to Linux programming,otherwise I have exposure to Linux. Was thinking about something like writing my own commands for Linux. Any ideas where to start, any useful links and what I need to know before I start with this.
Thanks :)
Sidhu (3 Replies)
How to convert this linux command to Unix AIX?
I have tried this command and work in CentOS:
tail --line=0 --retry -f --follow=name --max-unchanged-stats=1 logFile.log
But in AIX, the tail haven't "--retry" "--follow=name" option.
Thanks in advance. (1 Reply)
Hello all
the su with -l option is running normal with linux but when i try to run it on unix AIX 5.2.7 it's not working with -l option
any help (6 Replies)
Hi,
Your great help is very appreciated. I am looking for any Unix command or tool for doing Stress/Load test of php files at command prompt.
I tried torture.pl but it is not working after20 concurrent threads/users.
as it is very urgent for me..please suggest ur ideas asap.
thanks (5 Replies)
Hi all,
I was trying to install from source USB_ModeSwitch on my Mac. I have always had success with the basic ./configure, make, make install commands in terminal so don't know how, why or what.
The issue I came across is that the makefile.conf uses the -D flag while installing and on UNIX... (0 Replies)
Hi,
I have the below command for Linux
find -iname '*.ear' -o -iname '*.war' | xargs grep -R org.apache.log4jWhat is the HP-UX equivalent of this ? (4 Replies)
I just started a new semester and I started my UNIX class yesterday. I've already decided to use python along with my learning process but what I really want to use with it is Kali as my UNIX/Linux platform to learn off of since I already wanted to learn Cyber Sec. anyways. I just wanted to know if... (12 Replies)
Hello Everyone,
I am executing a unix script which logs into 50+ servers (netapp servers) and runs some commands and captures output locally. Below is the code snippet. file1.txt has names of all the remote servers where I am logging in.
#!/bin/ksh
#!/usr/bin/expect
touch... (1 Reply)
Hello,
I am on a Mac and trying to clean up some monthly files with a very simple SED:
sed '3,10d;/<ACROSS>/,$d' input.txt > output.txt
(from the input, delete lines 3 - 10; then delete from the line containing <ACROSS> to the end of the file)
then output to output.txt
Even when I try... (2 Replies)
Discussion started by: verbatim
2 Replies
LEARN ABOUT LINUX
sa1
sar(1M) System Administration Commands sar(1M)NAME
sar, sa1, sa2, sadc - system activity report package
SYNOPSIS
/usr/lib/sa/sadc [ t n] [ofile]
/usr/lib/sa/sa1 [ t n]
/usr/lib/sa/sa2 [-aAbcdgkmpqruvwy] [-e time] [-f filename] [-i sec] [-s time]
DESCRIPTION
System activity data can be accessed at the special request of a user (see sar(1)) and automatically, on a routine basis, as described
here. The operating system contains several counters that are incremented as various system actions occur. These include counters for CPU
utilization, buffer usage, disk and tape I/O activity, TTY device activity, switching and system-call activity, file-access, queue activ-
ity, inter-process communications, and paging. For more general system statistics, use iostat(1M), sar(1), or vmstat(1M).
sadc and two shell procedures, sa1 and sa2, are used to sample, save, and process this data.
sadc, the data collector, samples system data n times, with an interval of t seconds between samples, and writes in binary format to ofile
or to standard output. The sampling interval t should be greater than 5 seconds; otherwise, the activity of sadc itself may affect the sam-
ple. If t and n are omitted, a special record is written. This facility can be used at system boot time, when booting to a
multi-user state, to mark the time at which the counters restart from zero. For example, when accounting is enabled, the svc:/sys-
tem/sar:default service writes the restart mark to the daily data file using the command entry:
su sys -c "/usr/lib/sa/sadc /var/adm/sa/sa'date +%d'"
The shell script sa1, a variant of sadc, is used to collect and store data in the binary file /var/adm/sa/sadd, where dd is the current
day. The arguments t and n cause records to be written n times at an interval of t seconds, or once if omitted. The following entries in
/var/spool/cron/crontabs/sys will produce records every 20 minutes during working hours and hourly otherwise:
0 * * * 0-6 /usr/lib/sa/sa1
20,40 8-17 * * 1-5 /usr/lib/sa/sa1
See crontab(1) for details.
The shell script sa2, a variant of sar, writes a daily report in the file /var/adm/sa/sardd. See the OPTIONS section in sar(1) for an
explanation of the various options. The following entry in /var/spool/cron/crontabs/sys will report important activities hourly during the
working day:
5 18 * * 1-5 /usr/lib/sa/sa2 -s 8:00 -e 18:01 -i 1200 -A
FILES
/tmp/sa.adrfl address file
/var/adm/sa/sadd Daily data file
/var/adm/sa/sardd Daily report file
/var/spool/cron/crontabs/sys
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWaccu |
+-----------------------------+-----------------------------+
SEE ALSO crontab(1), sag(1), sar(1), svcs(1), timex(1), iostat(1M), svcadm(1M), vmstat(1M), attributes(5), smf(5)
System Administration Guide: Basic Administration
NOTES
The sar service is managed by the service management facility, smf(5), under the service identifier:
svc:/system/sar
Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). The ser-
vice's status can be queried using the svcs(1) command.
SunOS 5.10 20 Aug 2004 sar(1M)