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Shell Programming and Scripting

truncate a string from the end

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# 1  
Old 03-22-2009
truncate a string from the end
hi, guys. I have a question.

If I have a long string like this:

8.0K:/home/test/brownj

How can I get a substring which starts from the last slash to the end of the string, so in this case, it will be brownj

Thank you very much for you time in advance

-Keyang
# 2  
Old 03-22-2009
if there are always 3 slashes piping into the following will work

Code:
awk -F / '{print $4}'

Not sure if that's what you wanted, but I'm a beginner too. Hope it helped a little
Last edited by mikejreading; 03-22-2009 at 09:30 PM.. Reason: Incomplete
# 3  
Old 03-22-2009
A better solution when what you want is the last field. The NF is the variable that holds the number of fields created when awk split the string using "/" as the delimiter.

Code:
string="8.0K:/home/test/brownj"

echo $string | awk -F "/" '{print $NF}'

# 4  
Old 03-23-2009
Hi,
the utility basename will give You the last portion of any "path like" string, so

Code:
basename 8.0K:/home/test/brownj

will give You brownj, even if it contains colons.

Best regards
/Lakris
# 5  
Old 03-23-2009
Or without external commands:

Code:
% s=8.0K:/home/test/brownj
% printf '%s\n' "${s##*/}"
brownj

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