Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Modifying simple commands to create a script

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Modifying simple commands to create a script
# 1  
Old 06-03-2007
Modifying simple commands to create a script
Can anyone direct me to a resource that explains scripting in simple terms?
I have visited many sites and browsed this forum and have yet to find simple explanations.
# 2  
Old 06-03-2007
1. Start with "#!/bin/sh" or whatever shell you want to use.

2. Put whatever commands you want in the script. Which are the same as what you can type at the command line.

3. make it executable with chmod +x

4. "man sh" is the ultimate resource

Which is rather like saying to play the flute you blow at one end and move your fingers over the holes.

Code:
#!/bin/sh
# that comment is picked up by exec() and causes this script to be run by /bin/sh

echo this is a script

for d in a b c
do
     echo $d
done

# 3  
Old 06-03-2007
Thank You Porter..
I understand a bit more about this after reading your post.

Do you know of any resources that give step by step explanations using visuals?
# 4  
Old 06-03-2007
Some links ...
Shell Scripting Tutorial (Beginner-Intermediate)
Bourne Shell Programming
Advanced Bash-Scripting Guide
BASH Programming - Introduction HOW-TO

Jean-Pierre.
# 5  
Old 06-03-2007
Thank You Jean-Pierre
These links look good.
If I have any further questions can I refer them to you?
# 6  
Old 06-03-2007
How should the txt file be formatted and named?
Okay, so I have a small script ( my first ) and want to know what the proper formatting is ? Should the .txt file be saved in the bin folder?
How does it become an executable?
# 7  
Old 06-03-2007
it is traditionally either

(a) a file with no extension, eg "foo"

(b) a file with .sh as the extension, such as "foo.sh"

(c) a file with the type of shell as the extension, eg "foo.ksh"

It can live anywhere or on the PATH. You can say ./foo.sh or myfoo/foo.sh etc.

To make it executeable use "chmod +x foo.sh" to change the executable rights.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help making simple perl or bash script to create a simple matrix

Hello all! This is my first post and I'm very new to programming. I would like help creating a simple perl or bash script that I will be using in my work as a junior bioinformatician. Essentially, I would like to take a tab-delimted or .csv text with 3 columns and write them to a "3D" matrix: ... (16 Replies)
Discussion started by: torchij
16 Replies

2. Shell Programming and Scripting

Create simple script

Dear all, I have a directory named A and some subdirectories named B, C, D with .xml files. I want to use the following command to strip the file. sed -re ':start s/<*>//g; /</ {N; b start}' file.xml > file.xml At the same time, I want to remove the blank lines using sed '/^$/d' How can... (6 Replies)
Discussion started by: corfuitl
6 Replies

3. Shell Programming and Scripting

How to create a simple copy script?

Guys I want to do this: copy: /var/router/system1/config/backup/install.put /var/router/system2/config/backup/install.put /var/router/system3/config/backup/install.put /var/router/system4/config/backup/install.put into: /var/router/system1/config/install.dat... (22 Replies)
Discussion started by: DallasT
22 Replies

4. Shell Programming and Scripting

Need to create a simple script using MD5, SSH...

Hi all, I am brand new to these forums and I am a brand new UNIX Administartor. Don't know any scripting yet :wall:, and would like to learn as my boss is slowly letting me understand everything about being a Sys/*Nix Admin. He created this script which I am trying to replicate because I lost it... (54 Replies)
Discussion started by: zixzix01
54 Replies

5. Shell Programming and Scripting

How to create a simple shell script to backup

Hello - I am in process of deleting many files which are older than 4 weeks. For example I am inside: /subsystem/prod/ Files are with various extentions, but anything older than 4 weeks should be deleted. What would be the most simplest script to acheive this? (4 Replies)
Discussion started by: DallasT
4 Replies

6. Shell Programming and Scripting

Simple script editing text files and running commands

Okay this will probably have multiple parts to it but I don't really want to trouble you guys with more help because I'm a total noob so I can just do the first part by hand (it's just editing a few hundred lines of text in a file; I have to do the same thing on each line and I'm sure there's a... (2 Replies)
Discussion started by: guitarscn
2 Replies

7. Solaris

How to create a simple background script on Solaris

I have a local account for a unix server. The idle timeout for the account is around 10 mins. I have to login to the server multiple times during the day. Is there a way to increase the idle timeout or may be a script that I can run on background so it is not idle. Something like echo date every 9... (3 Replies)
Discussion started by: vinaysa
3 Replies

8. Shell Programming and Scripting

Simple Script to create folders

Hi I want to write a small script that will create folders named from `AAAA' all the way to `ZZZZ'. That is: `AAAA' `AAAB' `AAAC' ... `AABA' `AABB' `AABC' ... `ABAA' `ABAB' `ABAC' ... `ABBA' ... `ZZZZ' (4 Replies)
Discussion started by: ksk
4 Replies

9. Shell Programming and Scripting

Create A Simple GUI For Shell Script

Hi all! Im wondering if its possible to create a GUI for a shell script I just got done writing as the people that will be using it dont like the command line all to well. Just something simple with radio buttons to select options, maybe a text field to enter a location to save the file generated... (1 Reply)
Discussion started by: Grizzly
1 Replies

10. UNIX for Dummies Questions & Answers

running a simple script file with multiple commands

I'm trying to run a script file with multiple commands that I would normally type into the command line. The commands are: #!/bin/bash diff Test1.o0 /usr3/ronelso4/Desktop/verificationKPC/Test1.o0 > differences2 diff Test1a.o0 /usr3/ronelso4/Desktop/verificationKPC/Test1a.o0 >> differences2... (1 Reply)
Discussion started by: knelson
1 Replies
Login or Register to Ask a Question