10-20-2005
We need the "swapinfo -t" output. The -a output is worse than useless, it's misleading. "Used" means paging has occurred...something was written to the swap area. "Reserved" means needed for stuff in core now in case of paging. If you cannot reserve, you are out of vm.
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I'm just starting out with UNIX and have figured some stuff out. I just need some help with accepting user input on the command line. For instance, I created a number counter that counts down from any positive hard coded number. But, I want the commnad line line to read "Countdown 20" where 20... (1 Reply)
Discussion started by: scott78
1 Replies
2. Shell Programming and Scripting
Hi,
I am new to UNIX. I am facing some problem here.
#! /usr/bin/ksh
currDate = $1
export currDate;
echo " Date is $currDate"
when I run this script, it says : currDate not found.
Can anybody point out the mistake please.
--mahek (3 Replies)
Discussion started by: mahek_bedi
3 Replies
3. UNIX for Dummies Questions & Answers
I how do i accept a input date in script which is lesser than a specified day? ex: to accept a date less than or equal to 100 days(from today).?:(
Thanks for the help in advance.:) (1 Reply)
Discussion started by: abhi_123
1 Replies
4. Shell Programming and Scripting
Hi,
I need to create a script which checks the availability of a particular service on a particular Port on HP-Unix. Is there any command in unix wherein we can check if any port is accepting the connections now.
Thanks,
Vihang. (5 Replies)
Discussion started by: vikings.svnit
5 Replies
5. Shell Programming and Scripting
Is there a way accept A-Za-z0-9 from the user from a parameter?
EX. I want to take the parameter from the user even if its hEu or H3y
and store it as a parameter ( $1 ) (18 Replies)
Discussion started by: puttster
18 Replies
6. Shell Programming and Scripting
I'm doing a script where you are suppose to start off in accepting one or more directory as an argument. How do i do this?
Sorry for the nub question. (2 Replies)
Discussion started by: LinuxUser232331
2 Replies
7. Shell Programming and Scripting
Hi I am trying to get my script to accept input regardless if the person enters a or A. here is the portion of the code where I get the input.
echo -n 'Please enter your choice:' # prompt user for input.
read reply # read input
echo
case $reply in #... (2 Replies)
Discussion started by: DualPandas
2 Replies
8. Shell Programming and Scripting
Hi friends,
I am very new to Unix scripting and having some difficulty in my first shell script.
I have written a simple shell script to upload an artifact to a remote machine on the network.
echo "Uploading the artifact"
scp app.war username@remotemochine.domainname.net:/home/deployables... (3 Replies)
Discussion started by: prashdeep
3 Replies
9. Shell Programming and Scripting
In below script parameterwhich i am passing to awk function is not working.Not sure why its not accepting parameter.Please tell me how to pass parameter to the awk function.Please check the below script.
#!/bin/ksh
dummy_file=/etlapps/dev/data/sub_servicer_data/ScriptLogs/emp.txt
fields=5... (2 Replies)
Discussion started by: katakamvivek
2 Replies
LEARN ABOUT FREEBSD
swapon
SWAPON(8) BSD System Manager's Manual SWAPON(8)
NAME
swapon, swapoff, swapctl -- specify devices for paging and swapping
SYNOPSIS
swapon [-F fstab] -aLq | file ...
swapoff [-F fstab] -aLq | file ...
swapctl [-AghklmsU] [-a file ... | -d file ...]
DESCRIPTION
The swapon, swapoff and swapctl utilities are used to control swap devices in the system. At boot time all swap entries in /etc/fstab are
added automatically when the system goes multi-user. Swap devices use a fixed interleave; the maximum number of devices is unlimited. There
is no priority mechanism.
The swapon utility adds the specified swap devices to the system. If the -a option is used, all swap devices in /etc/fstab will be added,
unless their ``noauto'' or ``late'' option is also set. If the -L option is specified, swap devices with the ``late'' option will be added
as well as ones with no option. If the -q option is used, informational messages will not be written to standard output when a swap device
is added.
The swapoff utility removes the specified swap devices from the system. If the -a option is used, all swap devices in /etc/fstab will be
removed, unless their ``noauto'' or ``late'' option is also set. If the -L option is specified, swap devices with the ``late'' option will
be removed as well as ones with no option. If the -q option is used, informational messages will not be written to standard output when a
swap device is removed. Note that swapoff will fail and refuse to remove a swap device if there is insufficient VM (memory + remaining swap
devices) to run the system. The swapoff utility must move swapped pages out of the device being removed which could lead to high system
loads for a period of time, depending on how much data has been swapped out to that device.
Other options supported by both swapon and swapoff are as follows:
-F fstab
Specify the fstab file to use.
The swapctl utility exists primarily for those familiar with other BSDs and may be used to add, remove, or list swap devices. Note that the
-a option is used differently in swapctl and indicates that a specific list of devices should be added. The -d option indicates that a spe-
cific list should be removed. The -A and -U options to swapctl operate on all swap entries in /etc/fstab which do not have their ``noauto''
option set.
Swap information can be generated using the swapinfo(8) utility, pstat -s, or swapctl -l. The swapctl utility has the following options for
listing swap:
-h Output values in human-readable form.
-g Output values in gigabytes.
-k Output values in kilobytes.
-m Output values in megabytes.
-l List the devices making up system swap.
-s Print a summary line for system swap.
The BLOCKSIZE environment variable is used if not specifically overridden. 512 byte blocks are used by default.
FILES
/dev/{ada,da}?s?b standard paging devices
/dev/md? memory disk devices
/etc/fstab ASCII file system description table
DIAGNOSTICS
These utilities may fail for the reasons described in swapon(2).
SEE ALSO
swapon(2), fstab(5), init(8), mdconfig(8), pstat(8), rc(8)
HISTORY
The swapon utility appeared in 4.0BSD. The swapoff and swapctl utilities appeared in FreeBSD 5.1.
BSD
November 22, 2013 BSD