Passing a file handler and an array from Perl to Shell Script

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Passing a file handler and an array from Perl to Shell Script
# 1  
Old 11-17-2008
Passing a file handler and an array from Perl to Shell Script

Hi there,

I am trying to call a shell script from a Perl script. here is the code:
@args = ("sh", "", "a file handler", "an array");
system(@args) == 0
or die "system @args failed: $?";

in the shell program, I examine if the arguments exits using:

if [ $# -ne 2 ]
then echo "missing input"
exit 1

the script returns "missing input", any ideas? Thanks in advance.
# 2  
Old 11-17-2008
try something like this
$result = `sh -c a file handler  @arr`;

The 'a file handler part' makes no sense to me. You can pass the name of a (perl or shell) script, but other than that I don't get what you are trying to do.
# 3  
Old 11-17-2008
I'm trying to call a shell script along two inputs, the first one is a file and the second is an array. I tried the code, but it didn't work. Now that you know what I'm trying to do, would you suggest a solution? Thanks.
# 4  
Old 11-17-2008
#!/usr/bin/perl -w
    use strict;
    my @array = (1, 2, 3, 4, 5, 6, 9);
    my $filename = "/path/to/myfilename";    
    my @args = ( "", "$filename", "@array");
    system(@args) == 0 || die;
echo "the filename is $1 \c"
set -A array  $2
echo  "the array = ${array[*]}"

the filename is /path/to/myfilename the array = 1 2 3 4 5 6 9

# 5  
Old 11-17-2008
It didn't work unfortunately. The array was not past over to the shell script.

I'm changing methods. The perl script calls the shell script without parameters now. It writes to a file, and the shell script reads from it. The problem now is that only one line can be read even though there are more than one line in the file, or nothing can be read. I have tried a few different ways to do it, one of them follows (it didn't read at all). I have created a file with a few lines in, and the script works fine, but it won't read more than one line if the file was generated by the perl script. Thanks!


textArray[0]="" # hold text
c=0 # counter
# read whole file in loop
while read line
textArray[$c]=$line # store line
c=$(expr $c + 1) # increase counter by 1
done < $FILE
# get length of array
len=$(expr $c - 1 )

# use for loop to reverse the array
for (( i=0;i<$len; i++));
echo "make is work: ${textArray[$i]}"

Last edited by pinkgladiator; 11-17-2008 at 11:44 PM..
# 6  
Old 11-18-2008
Strange! I used the following script to see how many lines of code I have, and it says 1, but I have two lines of code.

while read line
do a=$(($a+1));
echo $a;
done < "/home/.../emailFile.txt"
echo "Final line count is: $a";
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Passing values to an XML file from shell script

:wall: Hi, I have an XML file with 5 tags. I need to pass values to the XML file from a shell script that will replace values in 2 of the tags. I cannot hardcode the tag values in XML and use replace command in script as the values are likely to change. Please help !!!!!!!!!!! (2 Replies)
Discussion started by: Monalisaa
2 Replies

2. Shell Programming and Scripting

Passing PERL var values to SH Shell Script

Greetings all, If I have a SH script that calls a PERL script in the following way: perl $HOME/scripts/ And in the PERL file, this Perl script only sets a number of environmental parameters in the following way: #!/usr/bin/perl $VAR1 = ( ... (3 Replies)
Discussion started by: gikyo12
3 Replies

3. Shell Programming and Scripting

Passing Shell array to SQLPlus

Dears, Newbie here and tried to search this topic for 3 days now with results. I have a shell array and I want to use it in sqlplus with one connection. here is what I have for now #!/bin/ksh FileName=1000 FileName=2000 FileName=3000 FileName=4000 sqlplus /nolog <<EOF connect... (20 Replies)
Discussion started by: roby2411
20 Replies

4. Shell Programming and Scripting

HELP on Perl array / sorting - trying to convert Korn Shell Script to Perl

Hi all, Not sure if this should be in the programming forum, but I believe it will get more response under the Shell Programming and Scripting FORUM. Am trying to write a customized df script in Perl and need some help with regards to using arrays and file handlers. At the moment am... (3 Replies)
Discussion started by: newbie_01
3 Replies

5. Shell Programming and Scripting

Can we pass an array of strings from a Perl Program to a Shell Script?

Hi Folks, The subject is my question: Can we pass an array of strings from a Perl Program to a Shell Script? Please provide some sample code. Thanks ---------- Post updated at 11:52 PM ---------- Previous update was at 11:43 PM ---------- I got it. Its here:... (0 Replies)
Discussion started by: som.nitk
0 Replies

6. Shell Programming and Scripting

Perl Function Array Arguement Passing

Hi All, I have some questions regarding array arguements passing for Perl Function. If @array contains 2 items , arguements passing would be like Code_A. But what if @array needs to add in more items, the rest of the code like $_ will have to be modified as well (highlighted in red), which is... (5 Replies)
Discussion started by: Raynon
5 Replies

7. Shell Programming and Scripting

Passing parameter from one file to shell script

Hi All, I have a 2 files. File1 i am generating using an ETL tool, which is a comman seperated delimited file which contains country code & load date. everytime, this country code will be updated from a table. It might be AB or BA & ld_date will be for which date we need to load the file. ... (7 Replies)
Discussion started by: Amit.Sagpariya
7 Replies

8. Shell Programming and Scripting

Need help passing variables in shell script to perl one-liner

I'm writing a script to automate some post-install tasks on RHEL4 servers. I need the following code to insert an 'A' in the middle of a string, then replace the string in a file. I know I can use sed to do this, but I'd like to use perl's in place edit so I don't have to write to a temp file,... (1 Reply)
Discussion started by: Xek
1 Replies

9. Shell Programming and Scripting

Passing value from shell script to .pls file

I have a shell script which takes at the command prompt options like -F SCOTT -T JOHN F- From User T- To User I want to pass the From User(SCOTT) Value to another script ss2.pls (This script runs a PL/SQL Program). Depending on the FromUser value in the script i have to... (4 Replies)
Discussion started by: dreams5617
4 Replies

10. Shell Programming and Scripting

shell script signal handler

AIX 4.3.3 I am trying to write a signal handler into a ksh shell script. I would like to capture the SIGTERM, SIGINT, and the SIGTSTP signals, print out a message to the terminal, and continue executing the script. I have found a way to block the signals: #! /bin/ksh SIGTERM=15 SIGINT=2... (2 Replies)
Discussion started by: jalburger
2 Replies
Login or Register to Ask a Question

Featured Tech Videos