I have 2 questions:
1- How did you learn bash scripting so well?
2- I have to look at the whole /var/log/wtmp files. There are so many of them and I have to add them to one file but I can't this is what I did:
Code:
# Check for existing /tmp/tst folder
if [ "/tmp/tst" != "" ]; then
rm -rf /tmp/tst
# Make a directory in /tmp called tst
mkdir -p /tmp/tst
# Copy wtmp files in /tmp/tst folder and unzip them:
cp -f /var/log/wtmp* /tmp/tst/
fi
bzip2 -d /tmp/tst/wtmp-*.bz2 | last -f wtmp-* > wtmpfile
cat wtmpfile
Then I have to add all the logged time of my users together and give a total as output. In your script you just used "last" command. which gives you only information from present machine not all other servers on the network.
correct me if I am wrong....
hi.
I need a bash script which can login to an other mashin via SSH and then run some commands and then return the result to my mashine.
I dont know where to begin, I think first I will need a ssh connection, dont know how to make it,
then , do I need a ftp connection between the 2 mashins to... (5 Replies)
hello
anyone have done ssh login script without "expect"
(automatic login from host A / user b to Host B / user b without enter any passwords)?
cheers (2 Replies)
Hi,
When I run the following script
#!/bin/sh
email="rc@dll.com"
subject="response times are more than a SECOND"
rt=`tail audit.log | grep -i operationResponseTime | awk '{print $2}'`
if
then
### Mail the file to the mailbox
mail -s $subject $email <<-end
$rt
~.... (3 Replies)
Ok, there's been a good number of posts about this, but here goes. I want a script to log in to a system via ssh without using keys.
This will be used to log in to Cisco IOS devices.
I have tried the following, but could not get it to work:
SSH login expect shell script to supply username and... (1 Reply)
Hi,
I am a complete Unix novice and need some help with creating a login shell script. I have created a file with user details i.e. PIN, name etc and require help in recalling the specified details from the file and being prompted for a password on login. Any help would be very much appreciated.... (0 Replies)
Hello, first of all, I am a pretty experience c++ programmer, but have never really bothered learning bash scripting at all, so I know conceptually things that can be done in c++, but I'm not too sure about bash. I'm trying to learn Bash, and wanted to start out with a practical application. So I... (1 Reply)
Dear All
When I start the AIX(6100-06)audit subsystem.
the log will save in /audit/stream.out (or /audit/trail), but in default when /audit/stream.out to grow up to 150MB.
It will replace the original /audit/stream.out (or /audit/trail).
Then the /audit/stream.out become empty and... (2 Replies)
In bourne shell the PID generated for the command "ps" matches my login id PID in the command "who -Hu" but in bash/linux the PID generated with the same commands are different . Why so? (2 Replies)
Hello everyone.
I'm a Linux novice trying out a lot of bash scripting lately, as it is so very addictive.
Lately I have been setting up one of my boxes remotely and have been hardening it as much as possible. Please allow me to explain the scenario, as it does tend to become a little... (1 Reply)
I'm new to utilities like socat and netcat and I'm not clear if they will do what I need.
I have a "compileDeployStartWebServer.sh" script and a "StartBrowser.sh" script that are started by emacs/elisp at the same time in two different processes.
I'm using Cygwin bash on Windows 10.
My... (3 Replies)
Discussion started by: siegfried
3 Replies
LEARN ABOUT SUSE
xfs_estimate
xfs_estimate(8) System Manager's Manual xfs_estimate(8)NAME
xfs_estimate - estimate the space that an XFS filesystem will take
SYNOPSIS
xfs_estimate [ -h? ] [ -b blocksize ] [ -i logsize ]
[ -e logsize ] [ -v ] directory ...
DESCRIPTION
For each directory argument, xfs_estimate estimates the space that directory would take if it were copied to an XFS filesystem. xfs_esti-
mate does not cross mount points. The following definitions are used:
KB = *1024
MB = *1024*1024
GB = *1024*1024*1024
The xfs_estimate options are:
-b blocksize
Use blocksize instead of the default blocksize of 4096 bytes. The modifier k can be used after the number to indicate multiplica-
tion by 1024. For example,
xfs_estimate -b 64k /
requests an estimate of the space required by the directory / on an XFS filesystem using a blocksize of 64K (65536) bytes.
-v Display more information, formatted.
-h Display usage message.
-? Display usage message.
-i, -e logsize
Use logsize instead of the default log size of 1000 blocks. -i refers to an internal log, while -e refers to an external log. The
modifiers k or m can be used after the number to indicate multiplication by 1024 or 1048576, respectively.
For example,
xfs_estimate -i 1m /
requests an estimate of the space required by the directory / on an XFS filesystem using an internal log of 1 megabyte.
EXAMPLES
% xfs_estimate -e 10m /var/tmp
/var/tmp will take about 4.2 megabytes
with the external log using 2560 blocks or about 10.0 megabytes
% xfs_estimate -v -e 10m /var/tmp
directory bsize blocks megabytes logsize
/var/tmp 4096 792 4.0MB 10485760
% xfs_estimate -v /var/tmp
directory bsize blocks megabytes logsize
/var/tmp 4096 3352 14.0MB 10485760
% xfs_estimate /var/tmp
/var/tmp will take about 14.0 megabytes
xfs_estimate(8)
02-18-2012
this is what I did: