var1=test1
setA=testA
if
...
touch $setA/$var1
...
fi
I would like now the repeat the command touch (in this example) for different variables.
So below, the varX should run 3 times (var1, var2, var4). Var3 is skipped in this example since it's not filled in.
Code:
var1=test1
var2=test2
var3=
var4=test4
setB=testB
setC
setD=testD
if
...
touch $setX/$varX
...
fi
What's the best way to do this?
I can of course copy the if x-time and change the $setX/$varX. But I suppose there is a better way (since the script is about 30 lines, and the variables are about 10 values)...
Last edited by brononius; 01-22-2014 at 03:28 AM..
Hi there,
i would like to repeat a command in a shell sript (bash)
the script starts with a menu to choose a menu point to do something ....
on the end of the script i would like to restart the programm to choose the menu points on the beginning.
I would also make a sript that send... (2 Replies)
Any idea to repeat an action to all the lines in vi...
suppose i want to delete the first word from all the lines in VI .. how would i do it ?
in general i am also looking for a way to apply a action to all the lines in VI . (6 Replies)
On my system I use Escape "k" to go back in commands. I read on tutorials that it is ctrl p, but that does not work on my system.
Anyone know what the command to go foward is? (6 Replies)
Hi All,
I have done some looking at other threads but haven't found quite what I am looking for. I am a newbie to scripting and haven't got to where I want to you but here is my basic question. I have a script to copy a file and send it to another file with a date and time stamp. What I want to... (4 Replies)
I have a file like this
2011-10-10 10:46:00,1-1-13-1-1,151510,ALCLA0A84D2C
2011-10-10 10:46:00,1-1-13-1-1,151520,65537
2011-10-10 10:46:00,1-1-13-1-1,151515,46932
2011-10-10 10:46:00,1-1-13-1-1,151521,32769
2011-10-10 10:46:00,1-1-13-1-1,151522,32769
2011-10-10... (4 Replies)
How do i write a loop ping to see if it get timeout or hang ? it should loop every 30 second to ping a server ?
ping -c 5 -t 15 www.google.com
if ]; then
date '+%Y-%m-%d %H:%M:%S Connection Unavailable' >> /home/sabercats/checkconnection.log
else
date '+%Y-%m-%d %H:%M:%S Connection... (3 Replies)
Well here is my question.
Let's say I have this Script:
find /var/mobile/ maxdepth -2 name "$x" >> /"$x".txt
The thing is I want to repeat this script and pull out a variable from a text file like this (each line = new variable $x and another run of the whole command)
Thanks for... (27 Replies)
How to repeat the execution of a simple command like the following for 1 sec ?
echo Hi
The completion time for the command is not known, but we need to calculate the number of times this commans executes successfully within 1 sec.
Thanks
Kumarjit (5 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. How can i use loop to repeat task.
2.shirt=15
black=13.50
echo "how many shirt you want"
read num
echo
echo "Please enter a choice"
echo "1 ---> normal... (5 Replies)
Discussion started by: Tauatioti
5 Replies
LEARN ABOUT CENTOS
stapdyn
STAPDYN(8) System Manager's Manual STAPDYN(8)NAME
stapdyn - systemtap dyninst runtime
SYNOPSIS
stapdyn [ OPTIONS ] MODULE [ MODULE-OPTIONS ]
DESCRIPTION
The stapdyn program is the dyninst back-end of the Systemtap tool. It expects a shared library produced by the front-end stap tool, when
run with --dyninst.
Splitting the systemtap tool into a front-end and a back-end allows a user to compile a systemtap script on a development machine that has
the debugging information (need to compile the script) and then transfer the resulting shared objevct to a production machine that doesn't
have any development tools or debugging information installed.
Please refer to stappaths(7) for the version number, or run rpm -q systemtap (fedora/red hat) apt-get -v systemtap (ubuntu)
OPTIONS
The stapdyn program supports the following options. Any other option prints a list of supported options.
-v Verbose mode.
-V Print version number and exit.
-w Suppress warnings from the script.
-c CMD Command CMD will be run and the stapdyn program will exit when CMD does. The '_stp_target' variable will contain the pid for CMD.
-x PID The '_stp_target' variable will be set to PID.
-o FILE
Send output to FILE. If the module uses bulk mode, the output will be in percpu files FILE_x(FILE_cpux in background and bulk mode)
where 'x' is the cpu number. This supports strftime(3) formats for FILE.
-C WHEN
Control coloring of error messages. WHEN must be either "never", "always", or "auto" (i.e. enable only if at a terminal). If the op-
tion is missing, then "auto" is assumed. Colors can be modified using the SYSTEMTAP_COLORS environment variable. See the stap(1)
manual page for more information on syntax and behaviour.
var1=val
Sets the value of global variable var1 to val. Global variables contained within a script are treated as options and can be set from
the stapdyn command line.
ARGUMENTS
MODULE is either a module path or a module name. If it is a module name, the module will be looked for in the following directory (where
'VERSION' is the output of "uname -r"):
/lib/modules/VERSION/systemtap
$ stap --dyninst -p4 -m mod1 -e 'global var1="foo"; probe begin{printf("%s
", var1); exit()}'
Running this with an additional module argument:
$ stapdyn mod1.so var1="HelloWorld"
HelloWorld
Spaces and exclamation marks currently cannot be passed into global variables this way.
EXAMPLES
See the stapex(3stap) manual page for a collection of sample scripts.
Here is a very basic example of how to use stapdyn. First, use stap to compile a script. The stap program will report the pathname to the
resulting module.
$ stap --dyninst -p4 -e 'probe begin { printf("Hello World!
"); exit() }'
/home/user/.systemtap/cache/85/stap_8553d83f78c_265.so
Run stapdyn with the pathname to the module as an argument.
$ stapdyn /home/user/.systemtap/cache/85/stap_8553d83f78c_265.so
Hello World!
SAFETY AND SECURITY
Systemtap, in DynInst mode, is a developer tool, and runs completely unprivileged. The Linux kernel will only permit one's own processes
to be accessed, which is enforced by the ptrace(2) system call. See the stap(1) manual page for additional information on safety and secu-
rity.
SEE ALSO stap(1), stapprobes(3stap), stap-server(8), staprun(8), stapex(3stap)BUGS
Use the Bugzilla link of the project web page or our mailing list. http://sourceware.org/systemtap/, <systemtap@sourceware.org>.
STAPDYN(8)