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# 1  
Old 03-09-2011
sed problem
Hi
i am stuck with a very silly problem Smilie


below is my code



echo 201010_1212_121.xml

i need to replace xml with csv so i did


Code:
 
echo 201010_1212_121.xml  | sed 's/.*\.xml/.*\.csv/'
 
echo 201010_1212_121.xml  | sed 's/*.xml/*.csv/'
 
echo 201010_1212_121.xml  | sed 's/......_...._....xml/......_...._....csv/'


But neither it is giving me correct result

please tell me where i am wrong
# 2  
Old 03-09-2011
This one:
Code:
echo "201010_1212_121.xml"|sed -e "s/\.xml$/\.csv/"

# 3  
Old 03-09-2011
Hi,

Code:
sed 's/xml$/csv/'

If you have that string in a shell variable, you can probably just do:
Code:
echo "${var%xml}"csv

Regards,
Alister
# 4  
Old 03-09-2011
hi
thanks all for ur reply

but there is little twist in question

actually i don't know what would be the extension

it could be xml or it could be abcy or dfjhghdf or abcndfjdhgk

even i don't know how many character would be in extension
so besically i need to replace the extension with csv


please help me in this
# 5  
Old 03-09-2011
A variation to Alister's suggestions should do:
Code:
sed 's/\.[^.]*$/.csv/'

Code:
echo "${var%.*}.csv"

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