01-26-2008
Strange issue
I have created a server monitor program in Java that connects to servers via SSH and constantly refreshes the new server load every 3 mins. The problem is that even though it is a Java app running shell commands to get the load info, the commands still appear in 'history'.
The question is.. is there any way to return this information without having the command saved in the command history? Sorry if this is a ridiculous question, my Unix knowledge is limited.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
I am comparing two numbers, but it gives strange results:
My Code:
if
then
echo "True"
else
echo "False"
fi
This code gives False for the follwoing comparison
where as True for the following:
Any reason for this? Both Should have given False...
I am using... (9 Replies)
Discussion started by: shihabvk
9 Replies
2. Cybersecurity
hi there , :cool:
um facing a problem with my root passwd
i want to set my root password and when i do i get the following ::
#
# passwd
passwd: Changing password for root
New Password:
Re-enter new Password:
passwd(SYSTEM): They don't match.
Please try again
New Password:... (6 Replies)
Discussion started by: badrali
6 Replies
3. UNIX for Advanced & Expert Users
hi again
i'm running a centos 4.x box with sendmail and openwebmail. I had a weird situation where users couldn't not get authenticated using a pop mail client but but were able to aunthenticate using the openwebmail webmail client. I looked through the logs and didn't see anything strange. I... (0 Replies)
Discussion started by: mcraul
0 Replies
4. Solaris
Hi ,
running solaris 10 on t5120 and i see ILOM and ALOM (SC) interfaces working fine earlier and suddenly they are responding strangely,
First thing , I can connect fine to ILOM or ALOM but then console -f just hangs..
resetsc error :
I do not really want to poweroff and poweron... (13 Replies)
Discussion started by: upengan78
13 Replies
5. Web Development
Hi all,
I recently changed the name of my hostname from 'abc123' to 'abc456' (as an example).
I then added a user in my mysql database with the new host and removed references to the old users and hostname.
The strange thing is though, a process using the database still uses the old... (1 Reply)
Discussion started by: muay_tb
1 Replies
6. AIX
hi all
we upgraded hacmp(powerha) from 5.2 to 5.4 recently .
during the failover testing, we found a strange network issue. after standby node took service ip address (172.15.100.8) online at standby NIC, we were able to log in the standby node by telnet 172.15.100.8 which stays at... (1 Reply)
Discussion started by: rs6000er
1 Replies
7. Solaris
Ok got a strange one here. None of my user accounts are able to login into the system. When trying to ssh to the server i get the following.
Could not chdir to home directory /home/<homedir>: Permission denied
/bin/sh: Permission denied
I checked the permissions on the home directory and even... (7 Replies)
Discussion started by: JoeDirte
7 Replies
8. UNIX for Dummies Questions & Answers
Hello All,
PC: CuBox-i (*i.MX6) Mini-PC
OS: openSUSE 13.1 (Bottle) (armv7hl)
Kernel: 3.14.14-cubox-i
# uname -a
Linux CuBox-HQ 3.14.14-cubox-i #1 SMP Sat Sep 13 03:48:24 UTC 2014 armv7l armv7l armv7l GNU/LinuxSo I've been having this random issue happen on this PC where a few strange... (12 Replies)
Discussion started by: mrm5102
12 Replies
9. Shell Programming and Scripting
more works.sh
#!/bin/ksh
{
print "From: reportgenerator@myserver.com"
print "To: randomguy@myfirm.com"
print "MIME-Version: 1.0"
print "Content-Type: text/html"
print "Subject: Disk Report"
print "<body>"
print "<table border=1>"
... (3 Replies)
Discussion started by: mohtashims
3 Replies
10. AIX
I just intalled java8_64.jre and .sdk respectively
installp -agXYd . Java8_64.jre Java8_64.sdk 2>&1 | tee installp.log
Worked like a champ. Now I see this--
jeff@server:/usr> ls -l | grep java
drwxr-xr-x 9 bin bin 512 Sep 22 2010 java14
drwxr-xr-x 7 bin bin ... (9 Replies)
Discussion started by: jeffs42885
9 Replies
LEARN ABOUT REDHAT
history
history(n) Tcl Built-In Commands history(n)
__________________________________________________________________________________________________________________________________________________
NAME
history - Manipulate the history list
SYNOPSIS
history ?option? ?arg arg ...?
_________________________________________________________________
DESCRIPTION
The history command performs one of several operations related to recently-executed commands recorded in a history list. Each of these
recorded commands is referred to as an ``event''. When specifying an event to the history command, the following forms may be used:
[1] A number: if positive, it refers to the event with that number (all events are numbered starting at 1). If the number is negative,
it selects an event relative to the current event (-1 refers to the previous event, -2 to the one before that, and so on). Event 0
refers to the current event.
[2] A string: selects the most recent event that matches the string. An event is considered to match the string either if the string
is the same as the first characters of the event, or if the string matches the event in the sense of the string match command.
The history command can take any of the following forms:
history
Same as history info, described below.
history add command ?exec?
Adds the command argument to the history list as a new event. If exec is specified (or abbreviated) then the command is also exe-
cuted and its result is returned. If exec isn't specified then an empty string is returned as result.
history change newValue ?event?
Replaces the value recorded for an event with newValue. Event specifies the event to replace, and defaults to the current event
(not event -1). This command is intended for use in commands that implement new forms of history substitution and wish to replace
the current event (which invokes the substitution) with the command created through substitution. The return value is an empty
string.
history clear
Erase the history list. The current keep limit is retained. The history event numbers are reset.
history event ?event?
Returns the value of the event given by event. Event defaults to -1.
history info ?count?
Returns a formatted string (intended for humans to read) giving the event number and contents for each of the events in the history
list except the current event. If count is specified then only the most recent count events are returned.
history keep ?count?
This command may be used to change the size of the history list to count events. Initially, 20 events are retained in the history
list. If count is not specified, the current keep limit is returned.
history nextid
Returns the number of the next event to be recorded in the history list. It is useful for things like printing the event number in
command-line prompts.
history redo ?event?
Re-executes the command indicated by event and return its result. Event defaults to -1. This command results in history revision:
see below for details.
HISTORY REVISION
Pre-8.0 Tcl had a complex history revision mechanism. The current mechanism is more limited, and the old history operations substitute and
words have been removed. (As a consolation, the clear operation was added.)
The history option redo results in much simpler ``history revision''. When this option is invoked then the most recent event is modified
to eliminate the history command and replace it with the result of the history command. If you want to redo an event without modifying
history, then use the event operation to retrieve some event, and the add operation to add it to history and execute it.
KEYWORDS
event, history, record
Tcl history(n)