perl script - command line parameter

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting perl script - command line parameter
# 1  
Old 09-27-2011
Bug perl script - command line parameter

i am a beginner, i want to make a program that takes any command line arguments... and print it out in reverse.

ie. if the command line argument is "thanks for helping me"

i want it to output "me helping for thanks" Smilie

i have tried using the reverse command, but i cant get it working!!

# 2  
Old 09-27-2011
post what u tried so far

---------- Post updated at 10:03 AM ---------- Previous update was at 10:02 AM ----------

and let us know the logic what u have used
# 3  
Old 09-27-2011
Originally Posted by itkamaraj
post what u tried so far

---------- Post updated at 10:03 AM ---------- Previous update was at 10:02 AM ----------

and let us know the logic what u have used
thanks for reply itkamaraj

so far i have tried this, but i dont think it is right!!


REVERSE_LIST = reverse (@ARGV);

print "command line argument in reverse: $REVERSE_LIST" . "\n";

# 4  
Old 09-27-2011
You need to define "REVERSE_LIST" as an array with a "@" symbol.


@REVERSE_LIST = reverse (@ARGV);

print "command line argument in reverse: @REVERSE_LIST" . "\n";

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Parsing a command line parameter in script

I have a simple script that builds a complex program call which passes a number of parameters to the program. I'm trying to enhance the script to include the value of the command line parameter in the name of a file being created. The problem I'm having is that the parameter may include a forward... (11 Replies)
Discussion started by: pbmax626
11 Replies

2. Shell Programming and Scripting

Run perl script, with command-line options

Hello everyone, I have a perl script which takes various command line options from user like : -i <input_file> -o <output_file> -d <value> -c <value> Now I have multiple input files in a directory: <input_file_1> <input_file_2> <input_file_3> <input_file_4> ..... .... ...... (6 Replies)
Discussion started by: ad23
6 Replies

3. Shell Programming and Scripting

perl/unix: script in command line works but not in perl

so in unix this command works works and shows me a list of directories find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt but when i try running a perl script to run this command my $query = 'find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt';... (2 Replies)
Discussion started by: kpddong
2 Replies

4. Shell Programming and Scripting

perl script command line option driven script

could someone show me a sample command line option driven script? i want to see an easy way to write one and how i can execute it using command line options such as typing in -i <id> -c <cmds> -s <start> -e <end> would read out all the commands run by ID . from start time to... (7 Replies)
Discussion started by: kpddong
7 Replies

5. Shell Programming and Scripting

How to get the last command line parameter?

"$#" gives the number of command-line arguments. How do you get the last command-line parameter (or any particular one determined by a variable)? I thought it would be "${$#}", but that produces something completely unexpected. (4 Replies)
Discussion started by: dkarr
4 Replies

6. Shell Programming and Scripting

changing from command line to perl script

I had posted previously about this problem I had. I have multiple text files with hundreds of lines of the following type: 2000001 34 54 234 2000001 32 545 2000001 -2000001 77 2000001 44 2000001 998 2000001 77 32 2000001 45 23 111 89 98 75 23 34 999 . . . etc... What I wanted was... (2 Replies)
Discussion started by: xchen89x
2 Replies

7. Shell Programming and Scripting

Using the counter of a for loop in command line parameter

Say I have (in psuedocode) For i=1 to 10 tar cvfb /... 5*i /junk(i) end What I mean is that I want each successive for loop to have the block size parameter be 5 times the current counter. This isn't my actual code, just a stupid example...So the question is how do I descrive that parameter... (2 Replies)
Discussion started by: jeriryan87
2 Replies

8. Shell Programming and Scripting

using tab to finish command line parameter

Anyone know how to set it up so that when at command line in unix (specifically solaris 2.5.1), and you hit the tab it will finish the command with the nearest file that matches? AND how to set it up so using up and down arrows access your previous commands? Thanks for all the help here, i've had... (3 Replies)
Discussion started by: kymberm
3 Replies

9. Programming

Command line parameter for C program

I am writing a C program that part of the idea is to using a command line parameter to control not to run certain part of the sub program. I am totally new to C, I do not have any idea how to pass a command line arguments from a C program. Can anyone help ?! Thanks (3 Replies)
Discussion started by: Wing m. Cheng
3 Replies

10. UNIX for Dummies Questions & Answers

Command Line width parameter

can someone please tell me how i can increase the number of characters that can be input on the command line? (2 Replies)
Discussion started by: Scoogie
2 Replies
Login or Register to Ask a Question