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Shell Programming and Scripting

Self referencing script error message

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# 8  
Old 01-31-2011
If you want the line number; the line in the script try:


Code:
ms:/u/purdym>cat /tmp/d
#!/usr/bin/ksh
echo "This error occured on line: $LINENO."

ms:/u/purdym>/tmp/d
This error occured on line: 2.
ms:/u/purdym>

# 9  
Old 01-31-2011
That'd work but the only problem is $LINENO returns the line number of itself. Not where the error was located. So I need something that will look in the script and return where the error itself is
# 10  
Old 01-31-2011
(Off topic. Avoid the variable name $LINENO - it is a largely undocumented reserved variable name and can change it's value).

Actually .... this may be "on-topic" if it is in the O/P's script.

Totally on-topic. It doesn't apply to all Shells but $LINENO is the current line in the Shell Script in many. I have seen other variants.
http://alasir.com/books/bsd/398-402.html

Advise change the name of your variable.
Last edited by methyl; 01-31-2011 at 07:34 PM.. Reason: Convincing myself that the $LINENO issue has happened again.
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