substring


 
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# 1  
Old 01-08-2007
substring

Hi,

I have a value of a filepath in a variable
DATAFILE with value as "customtop/gpsore37/gepspo/1.0/bin/ashoka.csv
".
Now i want the value of last 4 charcters in to another variable.
That is EXTENSION = .csv

How can i do this in Shell scripting

Thanks in advance

Alla Kishore
# 2  
Old 01-08-2007
Code:
var=$( echo "customtop/gpsore37/gepspo/1.0/bin/ashoka.csv" | sed "s/.*\(\..*\)/\1/ )"

# 3  
Old 01-08-2007
If you Python, here's an alternative:

Code:
DATAFILE="customtop/gpsore37/gepspo/1.0/bin/ashoka.csv"
filext=`echo $DATAFILE| python -c "import os;print os.path.splitext(raw_input())[-1]"`
echo $filext

output
Code:
.csv

# 4  
Old 01-08-2007
does this work for you

Code:
echo .${DATAFILE##+(*/*\.)}


Last edited by ranj@chn; 01-09-2007 at 04:03 AM.. Reason: typo - slash at the wrong place
# 5  
Old 01-08-2007
Hi,

Thanx for the reply

I could'nt get you."If you Python". I get a error python not found

Thanks
Alla Kishore

get
Quote:
Originally Posted by ghostdog74
If you Python, here's an alternative:

Code:
DATAFILE="customtop/gpsore37/gepspo/1.0/bin/ashoka.csv"
filext=`echo $DATAFILE| python -c "import os;print os.path.splitext(raw_input())[-1]"`
echo $filext

output
Code:
.csv

# 6  
Old 01-08-2007
some more,

Code:
var1=$(echo "customtop/gpsore37/gepspo/1.0/bin/ashoka.csv" | sed 's/\(.*\)\.\(.*\)/.\2/')

Code:
var2=$(echo "customtop/gpsore37/gepspo/1.0/bin/ashoka.csv" | awk -F"." '{print "."$3}')

# 7  
Old 01-09-2007
Quote:
var2=$(echo "customtop/gpsore37/gepspo/1.0/bin/ashoka.csv" | awk -F"." '{print "."$3}')
I think $NF would be a better choice instead of $3 in that case.
 
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