Hello.
Consider the following magic words:
# ls `which adduser`
ls: /usr/sbin/adduser: No such file or directory
#
Hmmm...
Then:
# ls /usr/sbin/adduser
/usr/sbin/adduser
#
Now what?
Unforunately this little sniippet is used in my debian woody server's mysql pre install script.... (2 Replies)
Hi,
I use the command
ls a\b\c\*.txt
from the command line on HP UNIX and it works fine - It lists all files matching *.txt in the a\b\c directory
When embeded in a ksh script
`ls a\b\c\*.txt`
it does not work - I get *.txt not found (even though there are files)
I tried... (10 Replies)
Hi,
I am working in SunOS 5.8.
I wanted to run a script in background and I gave the following command, but it is not working.
I gave "nohup ksh ULOAD.ksh &"
It just came out giving a msg "Redirection or piping of stdin or stdout is allowed only with -b. (156)" in nohup.out file.
If I... (2 Replies)
Hello All,
Here is a problem of NOHUP.
I am trying to run a process which needs to be up and running even if the session is closed. I tried running it with "nohup", but starngely it is not working, when i exit from the session the process is also getting killed?
plz help me in finding out... (4 Replies)
I need to sort through a volume that contains video files by access time and delete files that have not been accessed over x days. I have to use the access time as video files are originals that do not get modified, just read
Testing commands on a local test folder...
$ date
Wed Sep 28... (10 Replies)
Hi all,
I wrote a scirpt (abc.sh) in which I defined a loop with an interval equal to 1 hour. I want this script continue to run when I close the terminal, so I ran the following command,
(in the proper directory)
nohup abc.sh
However the script doesn't just keep running when I... (1 Reply)
Hello, I am trying to run a shell script with the nohup command. The shell script takes an array of files, runs a python program on each file in a loop, and appends the output to a file. This works fine on the server, but if I try to use the nohup command it does not work.
---
#!/bin/sh... (10 Replies)
Hello,
I am trying to make a bash script, I tested nohup but it did not help me.
My code is:
ffmpeg -i $input_url -c:v copy -c:a copy -listen 1 -f mpegts http://localhost:port/live/test
When I open it in VLC, it starts feeding my screen and I see bitrate values.
When I stop watching it,... (4 Replies)
Discussion started by: baris35
4 Replies
LEARN ABOUT DEBIAN
simple
Simple action in tc(8) Linux Simple action in tc(8)NAME
simple - basic example action
SYNOPSIS
tc ... action simple [ sdata STRING ] [ index INDEX ] [ CONTROL ]
CONTROL := { reclassify | pipe | drop | continue | ok }
DESCRIPTION
This is a pedagogical example rather than an actually useful action. Upon every access, it prints the given STRING which may be of arbi-
trary length.
OPTIONS
sdata STRING
The actual string to print.
index INDEX
Optional action index value.
CONTROL
Indicate how tc should proceed after executing the action. For a description of the possible CONTROL values, see tc-actions(8).
EXAMPLES
The following example makes the kernel yell "Incoming ICMP!" every time it sees an incoming ICMP on eth0. Steps are:
1) Add an ingress qdisc point to eth0
2) Start a chain on ingress of eth0 that first matches ICMP then invokes the simple action to shout.
3) display stats and show that no packet has been seen by the action
4) Send one ping packet to google (expect to receive a response back)
5) grep the logs to see the logged message
6) display stats again and observe increment by 1
hadi@noma1:$ tc qdisc add dev eth0 ingress
hadi@noma1:$tc filter add dev eth0 parent ffff: protocol ip prio 5
u32 match ip protocol 1 0xff flowid 1:1 action simple sdata "Incoming ICMP"
hadi@noma1:$ sudo tc -s filter ls dev eth0 parent ffff:
filter protocol ip pref 5 u32
filter protocol ip pref 5 u32 fh 800: ht divisor 1
filter protocol ip pref 5 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1
match 00010000/00ff0000 at 8
action order 1: Simple <Incoming ICMP>
index 4 ref 1 bind 1 installed 29 sec used 29 sec
Action statistics:
Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
hadi@noma1$ ping -c 1 www.google.ca
PING www.google.ca (74.125.225.120) 56(84) bytes of data.
64 bytes from ord08s08-in-f24.1e100.net (74.125.225.120): icmp_req=1 ttl=53 time=31.3 ms
--- www.google.ca ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 31.316/31.316/31.316/0.000 ms
hadi@noma1$ dmesg | grep simple
[135354.473951] simple: Incoming ICMP_1
hadi@noma1$ sudo tc/tc -s filter ls dev eth0 parent ffff:
filter protocol ip pref 5 u32
filter protocol ip pref 5 u32 fh 800: ht divisor 1
filter protocol ip pref 5 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:1
match 00010000/00ff0000 at 8
action order 1: Simple <Incoming ICMP>
index 4 ref 1 bind 1 installed 206 sec used 67 sec
Action statistics:
Sent 84 bytes 1 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
SEE ALSO tc(8)tc-actions(8)iproute2 12 Jan 2015 Simple action in tc(8)