learning shell scripting

•

What is DaniWeb IT Discussion Community?

You're currently browsing the Shell Scripting section within the Software Development category of DaniWeb, a massive community of 456,423 software developers, web developers, Internet marketers, and tech gurus who are all enthusiastic about making contacts, networking, and learning from each other. In fact, there are 2,615 IT professionals currently interacting right now! Registration is free, only takes a minute and lets you enjoy all of the interactive features of the site.

Join our community!

Please support our Shell Scripting advertiser: Programming Forums

Thread Tools Display Modes

Views: 1122 | Replies: 2

•

Join Date: Apr 2007

Posts: 5

Reputation: milonix is an unknown quantity at this point

Rep Power: 0

Solved Threads: 0

milonix

Offline

Newbie Poster

learning shell scripting

Apr 20th, 2007

i wrote this script, and everytime i run the script the code deletes and i want to know why

EDIT: i also chmod 755 if anyone wanted to know

Help with Code Tags

(Toggle Plain Text)

$ cat > ispostive
#!bin/sh
#
# Script to see whether argument is postive
#
if test $1 -gt 0
then
echo "$1 number is postive"
fi

just so everyone knows i just started to learn shell scripting

Last edited by milonix : Apr 21st, 2007 at 12:00 am.

•

Join Date: May 2006

Location: Bellevue, WA

Posts: 1,548

Reputation: Infarction has a spectacular aura about

Rep Power: 8

Solved Threads: 51

Infarction Infarction is offline

Offline

Battle Programmer

Re: learning shell scripting

Apr 22nd, 2007

That's an interesting use of cat. Anyways, I tried running it, and it worked fine after a small change (you didn't put a / before bin/sh, so working from anywhere other than the / directory would not work).

output:

Help with Code Tags

(Toggle Plain Text)

jimmy@vera ~/code/bash $ ./ispositive 4
4 number is postive
jimmy@vera ~/code/bash $ ./ispositive -4
jimmy@vera ~/code/bash $ ./ispositive 1234567890
1234567890 number is postive
jimmy@vera ~/code/bash $ ./ispositive 0