Hello ,
I have the folloiwing command :
sed -n "$var,$final w $destfile" $sourcefile
where :
$var - $final represent the range of line numbers to be written in $destfile
However I require this command to work in a loop for which i need the sed command to keep appending the output to the... (2 Replies)
Hi,
I would like to add blank space for fixed length(50) if length of string <30.
Scenario:
File Size
AAA.CSV 123
BB.CSV 134
Expected:
File Size
AAA.CSV 123
BB.CSV 134
I want append blank space until 30 character.
Thanks and Regards,
HAA (1 Reply)
Hello all,
I want to use sed to append a variable stored in $i, how do i do that?
$i contains a path to a directory and i want to append it before the result i get from awk statement, before affecting awk results.
rite now out put i get from code below is:-
The path is:... (2 Replies)
hi,
anyone can give a sample command on sed. the text file date list belows;
test.txt
"a","bbb",123
"b","ccc",234
"c","eee",456
output i need to add these word "xxx"
"xxx","a","bbb",123
"xxx","b","ccc",234
"xxx" ,"c","eee",456
thanks in advance,
FSP (4 Replies)
Hi all,
I have a file like
one two three for
five six seven eight
.....
Actually i need to append a label to the words that belong to the 2 column and get:
one two_label three for
five six_label seven eight
....
I was trying with sed inside vim but I can't figure out... (9 Replies)
I am trying to replace in multiple files every instance of text that begins with http and add hyperlink characters to it. I can get it to work with the following:sed -e "s/http*.*/<a href=\"&\">&<\/a>/g" *
as long as the http text is at the end of the file. I need it to stop at the end of the... (2 Replies)
im trying to append to the end of the line using sed but I want to do it without creating a new line
the text to which I want to append is all in capital letters.
I want to do something like this:
LINE]Foo
but when I do this:
//a\
] Foo
it prints foo on a new line:
LINE
]Foo
... (11 Replies)
I have a requirement where I need to add a variable value based on a pattern match. When I try this it works:
sed '/IS_ETL_DEV/a\
ABCD' File1.txt > File1.tmp
Now I want to replace IS _ETL_DEV with a variable like $Pattern and replace the values ABCD with a variable $Var the value "$$XYZ=1".... (4 Replies)
Hi,
We receive flat files with fixed width data
Now our goal is append from right null or space to each record if the lenght of the record is less than for example 10.
for example
123 45 6 0
123 45
123 45 6
123
and output should be
123 45 6 0
123 45****
123 45 6**... (7 Replies)
I am unable to make it work. I tried dbl quotes ...etc. Nothing works. I am trying to replace value in an XML file to current system date/time. Here is my code:
NTIMESTAMP=`date '+%m%d%Y%H%M%S'`
sed -e 's|<TIMESTAMP>\{1,\}|<TIMESTAMP>$NTIMESTAMP|g' $QLOG
Input data sample:
... (5 Replies)
Discussion started by: mrn6430
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)