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Full Discussion: How to pass an array to a function in shell script.?
Top Forums Shell Programming and Scripting How to pass an array to a function in shell script.? Post 302823991 by Little on Thursday 20th of June 2013 05:13:45 AM
Old 06-20-2013
ok the above code works.. now the next thing.
i am taking each element of this array n checking if that file exist in a directory or not..
Code:
CHECK_NO_FILES()
{
        FARRAY=$1
        echo "FARRAY[0] = $FARRAY[0]"
        echo "FARRAY[1] = $FARRAY[1]"
        i=0
        for file_name in "${FARRAY[@]}"; do
                
                echo "file_name = {$file_name}"
                NO_FILES[$i]=`ls -1 /app/etc/$file_name | wc -l`
                echo "NO_FILES[$i] = ${NO_FILES[$i]}"
                i=`expr $i + 1`

        done
}

S_FILES="s1.txt s2.txt"      # a simple variable.
SAP_ARRAY=($S_FILES)     # this line assign each space delimited element to the array.
echo "SAP_ARRAY[0] = $SAP_ARRAY[0]"   # prints SAP_ARRAY[0] = s1.txt
echo "SAP_ARRAY[1] = $SAP_ARRAY[1]"   # prints SAP_ARRAY[1] = s2.txt

CHECK_NO_FILES "${SAP_ARRAY[*]}"

in the above code sample, my requirement was to take each element of the array and check whether that file exists in a directory or not. and $NO_FILES array will contain the number of files of type i.e.

Code:
NO_FILES[0]=1 ,  if 1 "s1.txt" file is there in the specified directory.
NO_FILES[1]=0 ,  if no "s2.txt" files are found

but in the above function

Code:
echo "file_name = {$file_name}"

the above line returns
Code:
file_name = {s1.txt s2.txt}

expected is
Code:
file_name = {s1.txt}

 

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LEARN ABOUT MOJAVE

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)
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