[SOLVED] Clear: Command not found

gloridel · 09-02-2011, 12:17 AM

I am trying to learn shell scripting and the first attempt is an error

I found this tutorial :http://www.freeos.com/guides/lsst/ch02sec01.html

and made the sample program.

basically the script just contains clear

Code:

clear

but I got the error

the clear command is located at my /usr/bin
which is already set in my PATH

I am running bash shell.

{BBI}Nexus{BBI} · 09-02-2011, 12:44 AM

Are you sure you have /usr/bin in your path? You can check with

Code:

echo $PATH

If /usr/bin is not listed you need to add it to your /home/username/.bash_profile file.

jdkaye · 09-02-2011, 12:46 AM

Did you make your script executable?
jdk

gloridel · 09-02-2011, 01:43 AM

yes it is in my path::

$echo $PATH
/usr/local/bin:/bin:/usr/bin

yes it is executable:
-rwxrwxrwx testsh.sh

{BBI}Nexus{BBI} · 09-02-2011, 01:52 AM

What happens if you simply type clear yourself? BTW what distro are you using?

hi2arun · 09-02-2011, 01:53 AM

1. Output of

Quote:

whereis clear

or

Quote:

which clear

2. Do you see an error when 'clear' is executed?

Quote:

clear

3. Output of

Quote:

sh -x <name of your script>

gloridel · 09-02-2011, 02:03 AM

if i simply type clear, it clears the screen

$which clear
/usr/bin/clear

distro; Redhat

I tried doing this:

code=clear

the error was gone, but it did not execute the clear command.

hi2arun · 09-02-2011, 02:09 AM

Quote:

Originally Posted by gloridel

if i simply type clear, it clears the screen

$which clear
/usr/bin/clear

distro; Redhat

I tried doing this:

code=clear

the error was gone, but it did not execute the clear command.

Can you paste the script here?

Are you assigning 'clear' to 'code' and calling 'code'?

gloridel · 09-02-2011, 02:20 AM

Code:

code=clear

this is the only thing inside my testsh.sh file
i execute the script by "./testsh.sh" only

sorry , this is really my first time making my own shell script

hi2arun · 09-02-2011, 02:22 AM

No problem. Shell scripting is cool as you learn it.

well. After the line

Quote:

code=clear

, you have to call it as follows

Quote:

$code

Or, you can directly call 'clear' in the code.

Quote:

#!/bin/sh
clear

{BBI}Nexus{BBI} · 09-02-2011, 02:31 AM

Quote:

Originally Posted by gloridel

Code:

code=clear

That is not even in the tutorial you said you followed.

gloridel · 09-02-2011, 02:32 AM

i forgot to put this line

Code:

#!/bin/bash

and there where some extra characters so i got the following errors

-bash: ./testsh.sh: /bin/bash^ bad interpreter

so I used vi this time and wrote the function again and its working like magic

thank you so much

gloridel · 09-02-2011, 02:34 AM

Quote:

Originally Posted by {BBI}Nexus{BBI}

That is not even in the tutorial you said you followed.

sorry about that,

the original code was

Code:

clear
echo "Hello $USER"
echo "Today is \c"; date
echo "Number of user login : \c"; who | wc -1
cal
exit 0

but I got some errors command not found, so I was experimenting with it and posted the latest code I had ..

hi2arun · 09-02-2011, 02:34 AM

Well... if you ever encountered such error due to extra characters... this happens if you used editors on Windows...

you can resolve it by converting the script to unix format...

Quote:

dos2unix <name_of_ur_script>

gloridel · 09-02-2011, 02:41 AM

Quote:

Originally Posted by hi2arun

Well... if you ever encountered such error due to extra characters... this happens if you used editors on Windows...

you can resolve it by converting the script to unix format...

thanks.