Not able to store command inside a shell variable, and run the variable
Hi,
I am trying to do the following thing
Above command substitutes date for and in turn runs the date command and i am getting the todays date value.
I am trying to do the same thing as following, but facing some problems,
I have stored the sed command in unique_host_pro variable and going to use the variable in multiple places of my script, so i dont have to use the command in multiple places, and also trying to avoid updates to the command in multiple places.
once assigning the above value, i am trying to run the command using
Getting the following exception
Please let me know how to correct this error also let me know if the approach is correct.
Last edited by radoulov; 11-19-2010 at 06:07 AM..
Reason: Use code tags, please!
I have the results of a grep with -n store in a shell variable
ie
VAR=`grep -n -e 'PATTERN' file`
How ever I am missing the line breaks in the variable , How do I store the resualts of grep with many lines in to a variables. I want the varable should be the sawmway as we do the grep
grep... (3 Replies)
Hi all..
I got a problem..
Its easy to redirect o/p to a file.. But Is it possible to redirect the O/P to a variable?
For example:
I've a command in my script:
string1=cut -d ':' -f2 file.txt
When I do:
echo $string1
The value is empty... Pls suggest me how to store the value... (7 Replies)
I have a variable A
echo $A
5060
I am exporting the value X,Y,Z and it id fetching right thing and When I run
C=`${X} -l ${Y} ${Z} "trap '' INT;. ~/.profile >/dev/null 2>/dev/null; netstat -na | grep \$A`"
here it is going to same directory and also running netstat -na | grep 5060
... (4 Replies)
I am sure it has been answered in some form or the other in this forum but trust me I have spent last couple of hours looking for an answer but can't find it.
I want to do a very simple operation within my script.
Let's say I have 4 files with the names file1.log, file2.log, file3.log and... (6 Replies)
Hello Experts
I am newbie to unix and writing one script to make archive files
Problme i am facing is : I have used find command to find the type of files and I am storing find command results in a variable.
When I echo the variable I can see that path is printed properly but when i am... (5 Replies)
Hi
How to use a variable to store the filename of a file which was found by the 'find' command.
can this be practical-->var = find . -name "filename.dat"
Please help.. (1 Reply)
Hello All
My req is to store the exit status of a command in shell variable
I want to check whether the file has header or not
The header will contain the string
DATA_ACQ_CYC_CNTL_ID
So I am running the command
head -1 $i | grep DATA_ACQ_CYC_CNTL_ID
Now I have to check if... (6 Replies)
I want to store the return value of
grep -c string filename
into a variable, say count. How do I do that?
For example if grep -c "string" "filename" shows 0 on executing it in the sh shell then I want to store this 0 in a variable. Is it possible? :D (5 Replies)
Is it possible to store a command inside a variable?
i want this piece to be stored inside a variable, so i can use it later in a different command
$u | cut -d " " -f 2
var="$u | cut -d " " -f 2"
eval $var
I tried to use eval but I receive this error:
-f 2: command not found
... (5 Replies)
I am trying to store output of python command in variable. Could you please help how I can do that ?
For example I am executing the following command - "CentOS" in server_desc
The output would be True or False
I would like to store the output in a variable say outPut and use condition... (4 Replies)
Discussion started by: atanubanerji
4 Replies
LEARN ABOUT SUSE
platform::shell
platform::shell(n) Tcl Bundled Packages platform::shell(n)
__________________________________________________________________________________________________________________________________________________NAME
platform::shell - System identification support code and utilities
SYNOPSIS
package require platform::shell ?1.1.4?
platform::shell::generic shell
platform::shell::identify shell
platform::shell::platform shell
_________________________________________________________________DESCRIPTION
The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.
This package allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
requirement is that the other shell (identified by its path), is actually executable on the current machine.
While for most platform this means that the architecture of the interrogated shell is identical to the architecture of the running shell
this is not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.
For applications like a code repository it is important to identify the architecture of the shell which will actually run the installed
packages, versus the architecture of the shell running the repository software.
COMMANDS
platform::shell::identify shell
This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.
platform::shell::generic shell
This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.
platform::shell::platform shell
This command returns the contents of tcl_platform(platform) for the specified Tcl shell.
KEYWORDS
operating system, cpu architecture, platform, architecture
platform::shell 1.1.4 platform::shell(n)