Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Difference in executing the script

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Difference in executing the script
# 1  
Old 02-13-2015
Difference in executing the script
Hi Team,

a silly question.

Let's say i have a script called xyz.ksh

what is the difference in executing the script as follows?
./xyz.ksh
ksh xyz.ksh

Thanks
# 2  
Old 02-13-2015
The first one reads the first line of the script, and uses it to decide which shell to use.

If it's #!/bin/ksh it will use KSH, if it's #!/usr/bin/csh it will use csh, if it's #!/bin/sh it will use any variety of bourne shell, etc, etc.

When you do ksh script you avoid that entirely, and force it to use a particular shell.
This User Gave Thanks to Corona688 For This Post:
kmanivan82
# 3  
Old 02-13-2015
got it. Thank you Corona688.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Executing Oracle script from UNIX Script

Hi, I am new to UNIX and want to execute oracle script from unix script. I have written below script but i am getting below error. #!/bin/bash file="/home/usr/control/control_file1" while read line do #$line=@$line #echo $line sqlplus tiger/scott@DB @$line exit #echo "$line" done... (3 Replies)
Discussion started by: vipin kumar rai
3 Replies

2. UNIX for Dummies Questions & Answers

Script dosent exits after executing the script

Hi i wrote a script which dosent exists after executing any help #!/bin/bash netstat -ptlen | grep 10000 if ; then echo "Hive Thrift server is running" exit 0 else echo "Hive Thrift server is down Trying to Bring up the service" | mail -s "ALERT" team@domain.com `nohup hive... (7 Replies)
Discussion started by: vikatakavi
7 Replies

3. UNIX for Dummies Questions & Answers

Difference Between executing llike ./myscript.ksh and . ./myscript.ksh

Hi , What is the diffence between executing the script like ./myscript.ksh . ./myscript.ksh I have found 2 difference but could not find the reason 1. If i export a variable in myscript.ksh and execute it like . ./myscript.ksh the i can access the other scripts that are present in... (5 Replies)
Discussion started by: max_hammer
5 Replies

4. Shell Programming and Scripting

Use of ./ in executing a script.

Hi Guys, Hope you are doing well out there. Can you please let me know why do we use "./" to run a shell script? Is it to run the script in the current shell or something else? What if I have already defined a bang in the script say #!/bin/ksh and then running the script as... (2 Replies)
Discussion started by: singh.chandan18
2 Replies

5. Shell Programming and Scripting

Variables of executed script available in executing script

Hi, I have a script get_DB_var.ksh which do a data base call and get some variables as below: sqlplus -silent $user/$pass@dbname <<END select col1, col2, col3 from table_name where col4=$1; exit; END Now I want to access all these variables i.e.... (9 Replies)
Discussion started by: dips_ag
9 Replies

6. Shell Programming and Scripting

What is the difference executing a script with . in the front versus not putting a "."

Hi All, I know this has been discussed a lot but still I need some more answers. I am running this is ksh on AIX 5.3 I believe putting a "." in front of the script will start a new shell, is that correct?? I have a script which override some PATH variables and it does not do that... (3 Replies)
Discussion started by: Hangman2
3 Replies

7. UNIX for Advanced & Expert Users

Executing a shell script from windows;script present in unix

I need to execute a shell script kept in unix machine from windows. User id, password area available. For eg. There's a shell script wich moves all the logs kept in my home directory to a directory named LOGS. Now i need to get this done through windows; either using a batch file, or java... (4 Replies)
Discussion started by: rajneesh_kapoor
4 Replies

8. Shell Programming and Scripting

script not executing

Hi , Kindly advice whats wrong with this script. It is not executing. ...# #!/bin/ksh find. -name "b.log" if ; then echo "1" fi ...# Thanks (5 Replies)
Discussion started by: himvat
5 Replies

9. UNIX for Dummies Questions & Answers

Difference between executing a shell using sh and .

Is there any difference in executing the shell using sh and . and ./. I had a shell script and i observed that anyone is ale to execute the script eith sh even without having the execute permission.how is so? (2 Replies)
Discussion started by: soumyo_das
2 Replies

10. Shell Programming and Scripting

Difference in Executing a Script

Can anyone tell me the difference between the following execution ways: 1) . ./filename 2) ./filename Also when to use the either. (8 Replies)
Discussion started by: Shivdatta
8 Replies
Login or Register to Ask a Question