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Shell Programming and Scripting

echo doesn't work right

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# 1  
Old 03-03-2011
Question echo doesn't work right
Hi,when I run my first shell script,I got something that doesn't work right.
I wrote this code in the script.
Code:
echo -e "Hello,World\a\n"

But the screen print like this:

-e Hello,World

The "-e" wasn't supposed to be printed out.
Can anyone help me out?Smilie
Many thanks!Smilie
# 2  
Old 03-03-2011
What shell are you using?
(csh, ksh, bash, etc.)

Type:
Code:
man echo

See if "-e" is part of your "echo" command.
# 3  
Old 03-03-2011
Quote:
Originally Posted by Shell_Life
What shell are you using?
(csh, ksh, bash, etc.)
bash
I typed
Code:
#!/bin/bash

in the script

---------- Post updated at 11:49 AM ---------- Previous update was at 11:43 AM ----------

Quote:
Originally Posted by Shell_Life
What shell are you using?
(csh, ksh, bash, etc.)

Type:
Code:
man echo

See if "-e" is part of your "echo" command.
Yes, in the description it says
-e enable interpretation of backslash escapes
And when I type the command directly in the shell,it work right!
So weird!
# 4  
Old 03-03-2011
More importantly which version of echo are you using
Code:
$  echo -e "cheeses \n\tCashel Blue\n\tRoquefort"
cheeses
        Cashel Blue
        Roquefort
$ which echo
/bin/echo
$ rpm -qf /bin/echo
coreutils-5.2.1-36.el4

In your shell and your script try
Code:
which echo

# 5  
Old 03-03-2011
Mate, try

echo $SHELL

this will give which shell you are in.

Also Try

which bash

this will give the address for bash like "/usr/bin/bash"

add this to the first line of your script with shebang(#!).

In Bash "-e" option with echo should work.
# 6  
Old 03-03-2011
Quote:
Originally Posted by kamalkishore
Mate, try

echo $SHELL

this will give which shell you are in.

Also Try

which bash

this will give the address for bash like "/usr/bin/bash"

add this to the first line of your script with shebang(#!).

In Bash "-e" option with echo should work.

Both of the command return /bin/bash
# 7  
Old 03-03-2011
The reason I suggested
Code:
which echo

was to see if $PATH is different in your shell and your script. (eg you have a PATH setting in your shell which isn't exported to your script) if the command above returns different values for both then call the command in the script using the full path name returned in the shell, where it worked.
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