Hi,
If i want to write my data on several tapes, (more than one tape), what switch(s) i need to use with tar.
In other word if my data needs the sapce more than one tape & i don't wanna to compress or ... my data. so is it possible to write up to the end of the tape & it asks to put another... (1 Reply)
Dear Sirs
I posted this question to "Unix for dummies" but got no answers, so I'm asking help from this group.
Whenever I bring up an xterm window on my laptop running Mandrivia Linux, the font in the xterm window is so small that it is practically unreadable !
What switches do I need to... (1 Reply)
Hi guys,
this is my first posting, so at first hi to everyone! ;)
I have a problem with ucontext_t in connection with signal handling. I want to simulate a preemptive scheduler. I am using the iTimer with ITIMER_PROF, to schedule the interrupts. You find the code below:
#include <stdio.h>... (18 Replies)
Hello,
I'm working on LACP architecture. I would like to know if it's possible to aggregate two links on two separate switches.
Here an example I want : Aggregation of link1 and link2 to obtain a logical 2 gbit/s link. Also have redundancy, if one of them is down, the traffic goes through the... (1 Reply)
Hi All ,
In my environment we have 12 SAN switches .Culd u pls help me for below queries .
would like to telnet to all switches and collect information in daily basis with "switchstatus" command and store the output under /tmp/ folder on systemA .
To keep passwords of 12switches in a... (1 Reply)
Hi, I have configured check_snmp plugin and using the plugin i am able to monitor the uptime of the switch.
But the following fails
# /usr/local/nagios/libexec/check_snmp -H 10.10.10.1 -C ready -o ifOperStatus.1 -r 1 -m RFC1213-MIB
SNMP CRITICAL - *down(2)* |
#
Any suggestions ? (1 Reply)
I have a script that has commandline switches that work no problem. But i don't know how to enable it to have multiple switches at one time. So I'd want
myscript -h -o or even myscript -ho but i'm having no luck incorporating this. I tried shifting but i'm not getting it. Thanks
----------... (0 Replies)
Hi guys I have a file that is filled with x,y values:
0.000000 0.00129578
0.000191 0.00272187
0.000381 0.0125676
0.000572 0.0120014
0.000763 0.00203461
0.000954 0.00682248
0.001144 0.00202773
0.001335 0.000840523
0.001526 0.00451419
....5MB of that
I wanted to know if there is a... (7 Replies)
Hi.
On a standalone AIX server, 7.1 version, I have 3 connected gigabit ethernet ports.
I made an etherchannel like this :
# lsattr -El ent4
adapter_names ent1,ent2 | EtherChannel Adapters True
alt_addr 0x000000000000 | Alternate EtherChannel Address True
auto_recovery yes | Enable... (1 Reply)
I have a script using getops with -a -t -l as potential switches, based on the switches used, it will set the respective variable value which will cause the routine/function to run. I need to also pass a string with the switch that will get parsed by the function.
example
./myscript -a... (8 Replies)
Discussion started by: glev2005
8 Replies
LEARN ABOUT LINUX
unbuffer
UNBUFFER(1) General Commands Manual UNBUFFER(1)NAME
unbuffer - unbuffer output
SYNOPSIS
unbuffer program [ args ]
INTRODUCTION
unbuffer disables the output buffering that occurs when program output is redirected from non-interactive programs. For example, suppose
you are watching the output from a fifo by running it through od and then more.
od -c /tmp/fifo | more
You will not see anything until a full page of output has been produced.
You can disable this automatic buffering as follows:
unbuffer od -c /tmp/fifo | more
Normally, unbuffer does not read from stdin. This simplifies use of unbuffer in some situations. To use unbuffer in a pipeline, use the
-p flag. Example:
process1 | unbuffer -p process2 | process3
CAVEATS
unbuffer -p may appear to work incorrectly if a process feeding input to unbuffer exits. Consider:
process1 | unbuffer -p process2 | process3
If process1 exits, process2 may not yet have finished. It is impossible for unbuffer to know long to wait for process2 and process2 may
not ever finish, for example, if it is a filter. For expediency, unbuffer simply exits when it encounters an EOF from either its input or
process2.
In order to have a version of unbuffer that worked in all situations, an oracle would be necessary. If you want an application-specific
solution, workarounds or hand-coded Expect may be more suitable. For example, the following example shows how to allow grep to finish pro-
cessing when the cat before it finishes first. Using cat to feed grep would never require unbuffer in real life. It is merely a place-
holder for some imaginary process that may or may not finish. Similarly, the final cat at the end of the pipeline is also a placeholder
for another process.
$ cat /tmp/abcdef.log | grep abc | cat
abcdef
xxxabc defxxx
$ cat /tmp/abcdef.log | unbuffer grep abc | cat
$ (cat /tmp/abcdef.log ; sleep 1) | unbuffer grep abc | cat
abcdef
xxxabc defxxx
$
BUGS
The man page is longer than the program.
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
1 June 1994 UNBUFFER(1)