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Bash scripting - Get script name

 
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# 1  
Old 12-04-2009
Bash scripting - Get script name
All,

I am trying to migrate a script written in ksh (AIX) to bash (SuSE Linux). I encountered a number of errors when I am trying to run this script on bash and I was resolving them one-by-one. However, there is one error that remains. Here are the details:
The script has the following command:
Code:
>> script=`basename $0`

and this script variable is used in the code below while doing some error reporting. The error is that $0 in bash is producing
Code:
-bash

and not the usual
Code:
<directory path>/scriptname

output.

How do I achieve this? I am a little rusty in Shell scripting, so any help is appreciated!

Thanks.
# 2  
Old 12-04-2009
works for me
Code:
#!/bin/bash

script=$0

echo ${script}

script=`basename ${script}`

echo ${script}

output
Code:
# ./t.bash
./t.bash
t.bash

Where in your script is it being run?
# 3  
Old 12-04-2009
Thanks for your reply jsmithstl.

This script=`basename $0` is run in the very beginning where all the variable assignments are done. There are other variable assignments (typeset etc.) being done, and this is done in a section there.

Also, I have replaced the #!/usr/bin/ksh with #!/bin/bash and tried in vain.

Let me know if this info is what you asked from me!
# 4  
Old 12-04-2009
can you post your script down to the point where you echo $script?
# 5  
Old 12-09-2009
I apologize for the delay jsmithstl. Here is the script (at the variable declarations level). I am not echo-ing it, but I am using it as part of the USAGE function which is written further below. I did not attach that portion here...

So, here goes:
Code:
set -A mth JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
integer rc=$success
agency_file=
ghost_file=
loss_file=
month_t_process="DEC"
prem_file=
script=`basename $0`
today_ymdHM=`date +%y\%m\%d%H%M`
USAGE="Usage: ${script}\n"

The workaround for now is, since this script was already running find in ksh, I am using "ksh -x" to run the script and this seems to be working fine. But, then, I would like this resolved in "bash" too. So, I would really appreciate your, for that matter anybody else's, input on this Smilie

Thanks.
# 6  
Old 12-09-2009
I ran it under bash and had issues with the SET and the integer, but `basename $0` worked fine.

Can you run it under bash and post the code you set USAGE, the code you are using $USAGE, the output, and any error message?

Code:
#!/bin/bash

set -A mth JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
integer rc=$success
agency_file=
ghost_file=
loss_file=
month_t_process="DEC"
prem_file=
script=`basename $0`
today_ymdHM=`date +%y\%m\%d%H%M`
USAGE="Usage: ${script}\n"

printf "${USAGE}"

$ ./t.bash
./t.bash: line 3: set: -A: invalid option
set: usage: set [--abefhkmnptuvxBCHP] [-o option-name] [arg ...]
./t.bash: line 4: integer: command not found
Usage: t.bash
$
# 7  
Old 12-09-2009
"-bash" usually signifies a login shell. Can it be that you are running these commands straight from the command line instead of calling them from a shell script.
 
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