Hi all,
By running a (command) script I'm getting the following
error: .: /usr/bin/test: cannot execute binary file
This is the command:
$ . test
The script (test) is very simple
sqlplus user/password @1.sql
sqlplus user/password @2.sql
Can enyone tell me what the problem is. (5 Replies)
Hi all,
I have created a script file .sh and had some allias commands, local variable, some grep features, and listing files/directories, and it worked correctly and I got the outputs I am looking for after I run the script . However, some of the grep commands and some other functions did not... (2 Replies)
Hi All,
Need your guuys help here.
#!/bin/bash
{
echo "POLICY LIST"
echo "===================================="
bppllist
echo " "
echo "POLICY DETAILS"
echo "===================================="
for type in daily weekly monthly quarterly
echo... (6 Replies)
Hi,
I am getiing emails from cron.daily with subject:
Cron root@vsftp run-parts /etc/cron.daily
/etc/cron.daily/logrotate:
/sbin/killall -HUP radiusd
: line 1: /sbin/killall: No such file or directory
error: error running postrotate script for /var/log/vsftpd/logfile
the... (6 Replies)
Hi, I have a PHP application that starts a couple of processes on the server...the problem is that if I restart apache those running apps will die.
How can I start them in a way that they are not killed when I restart/stop apache ?
$cmdstr = "nohup ".$config."/".$config."... (6 Replies)
I have posted this on the Web subforum but it seems that nobody knows to do this, maybe someone has a solution here. Thank you
I have a PHP application that starts a couple of processes on the server...the problem is that if I restart apache those running apps will die.
How can I start them... (1 Reply)
Hi,
I have a problem with running out of memory in my Ubuntu web server (4GB RAM) because many people try to access my server.
I used to restart manually my apache server to clear out the memory & swap.
Can anyone tell me how to write bash script that can automatically restart apache when... (2 Replies)
I am using blow script :--
#!/bin/bash
FIND=$(ps -elf | grep "snmp_trap.sh" | grep -v grep) #check snmp_trap.sh is running or not
if
then
# echo "process found"
exit 0;
else
echo "process not found"
exec /home/Ketan_r /snmp_trap.sh 2>&1 & disown -h ... (1 Reply)
Hi,
I have the the below script
more runcda.sh
if *\).*/\1/p' $1_dr) ]; then
echo "ParallelGCThreads Found with Value"
else
echo "ParallelGCThreads Not Found - Add !!"
fi
$ ./runcda.sh output.log
./runcda.sh: test: argument expected
ParallelGCThreads Not Found - Add !!
Why am i... (2 Replies)
Hello,
I'l like to create a script that restart a service (/etc/init.d/httpd restart) and also check if after restart the service is actually running. Sometimes it happen that at the first try the service fails to restart.
Thanks (2 Replies)
Discussion started by: bazzola
2 Replies
LEARN ABOUT CENTOS
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)