Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How to dynamically name as function in shell?
Top Forums Shell Programming and Scripting How to dynamically name as function in shell? Post 302852023 by Scott on Tuesday 10th of September 2013 09:47:59 AM
Old 09-10-2013
Code:
$ cat myScript
F=${1:-default}

. <(cat <<!
function somefunction_$F {
  echo "\$0: Test OK"
}
!)

eval somefunction_$F

Code:
# ./myScript blah
somefunction_blah: Test OK

# ./myScript
somefunction_default: Test OK

This method might be a bit inflexible since you have to escape anything in the function that belongs to the function, otherwise the shell will evaluate it.

Another method, using a temporary functions file:

Code:
# cat myScript
F=${1:-default}
sed "s/:name:/$F/" funcs.tmp > funcs.sh

. ./funcs.sh
        
eval somefunction_$F

Code:
# cat funcs.tmp
function somefunction_:name: {
  echo "$0: Test OK"
}

Code:
# ./myScript blah
somefunction_blah: Test OK
        
# ./myScript 
somefunction_default: Test OK

Last edited by Scott; 09-10-2013 at 11:21 AM.. Reason: Method without using temporary functions file; - added it back in again!
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Managing dynamically multiple shell

I want to launch some shell scripts. I would have the possibility to change the number of shell scripts launched dynamically by modifying a variable, or a configuration file. For example, I start to launch 4 scripts at the same time, and after that, by modifying a variable, 6 scripts are... (0 Replies)
Discussion started by: gonzo38
0 Replies

2. Shell Programming and Scripting

Shell script dynamically case in VAR

Hallo, I am working on a kdialog. This shall be able to load the required commands from a .conf file. First step runs good by loading the entries (selectabel entries) in a variable: MIRRORSELECT=$(kdialog --radiolist "Select your nearest mirror" $VAR1) The kdialog is accordingly correct... (2 Replies)
Discussion started by: ACTGADE
2 Replies

3. Shell Programming and Scripting

Dynamically creating text files using shell script

Hi All, I want to create a shell script which dynamically create text files. i am using the following script $i=1 while do cat > test_$i.txt done but while running the script it was stopping(the cursor not going to next step, i have to enter ctrl+c to make it stop). it is creating only... (2 Replies)
Discussion started by: KiranKumarKarre
2 Replies

4. Programming

C function call dynamically

Hi. I need help with a C/C++ question and i hope someone can help me or give me some ideas. Is possible to build a function C/C++ call dynamically? I.e, i have an array with pointer functions and these functions can have different number of parameters and types. These parameters and their... (14 Replies)
Discussion started by: pogdorica
14 Replies

5. Shell Programming and Scripting

dynamically adding values in c-shell

I am needing to create a variable(changing) and assign it a value(changing) ... I am using C-Shell.. Example: foreach account in ($Accountlist) set account_connect = "$account/$account_pass" end I want to make set account_connect to store various values ? $account_connect did not... (3 Replies)
Discussion started by: shafi2all
3 Replies

6. Shell Programming and Scripting

how to create the files dynamically in c shell script

how can i CREATE a txt file dynamically in c shell: for instance: #! /bin/csh for each i (*) cat>file$i.txt for each j do .... (1 Reply)
Discussion started by: jdsignature88
1 Replies

7. Shell Programming and Scripting

Shell script variable names created dynamically

Hi, I'm trying to use a config file to define frequencies for checking log files. If the config file contains a frequency it will be used else a default value. The format of the config file (and hence the environment variable) is FREQ_log_logname=value A test shell script as below:... (2 Replies)
Discussion started by: u671296
2 Replies

8. UNIX for Beginners Questions & Answers

Putting query result dynamically to one cell of table from shell

I have to send a data in mail table format.only one cell need to get dynamically from query. my code is like (echo '<table boarder="1"> echo '<tr><td>stock</td><td>/path</td><td>.........</td></tr>' echo '</table> )sendmail.. in ......... I am trying to get query result.By putting query... (2 Replies)
Discussion started by: meera_123
2 Replies

9. Homework & Coursework Questions

How to Dynamically Pass Parameter to plsql Function & Capture its Output Value in a Shell Variable?

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: 2. Relevant commands, code, scripts, algorithms: #! /bin/ksh v="ORG_ID" ... (2 Replies)
Discussion started by: sujitdas2104
2 Replies

10. Shell Programming and Scripting

Shell script to apply functions to multiple columns dynamically

Hello, I have a requirement to apply hashing algorithm on flat file on one or more columns dynamically based on header sample input file ID|NAME|AGE|GENDER 10|ABC|30|M 20|DEF|20|F say if i want multiple columns based on the header example id,name or id,age or name,gender and hash and... (13 Replies)
Discussion started by: mkathi
13 Replies

LEARN ABOUT OSX

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)
All times are GMT -4. The time now is 06:29 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy