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sed - simple question

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# 8  
Old 03-29-2007
Quote:
Originally Posted by jacoden
Code:
sed 's/[0-9]\.[0-9]/,/g' filename

this wont work, as single digit is considered


Code:
echo "1234.23" | sed 's/\([0-9]*\)\.\([0-9]*\)/\1,\2/'

# 9  
Old 03-29-2007
Quote:
Originally Posted by matrixmadhan
Code:
echo "1234.23" | sed 's/\([0-9]*\)\.\([0-9]*\)/\1,\2/'

Code:
$ echo dfd.dfd | sed 's/\([0-9]*\)\.\([0-9]*\)/\1,\2/'
dfd,dfd

# 10  
Old 03-29-2007
Quote:
Originally Posted by matrixmadhan
this wont work, as single digit is considered


Code:
echo "1234.23" | sed 's/\([0-9]*\)\.\([0-9]*\)/\1,\2/'

Yes.it was a mistake...

sed 's/\([0-9]\)\.\([0-9]\)/\1,\2/g' filename

should be fine
# 11  
Old 03-29-2007
Quote:
Originally Posted by anbu23
Code:
$ echo dfd.dfd | sed 's/\([0-9]*\)\.\([0-9]*\)/\1,\2/'
dfd,dfd

Yeah, catch! Smilie

Code:
perl -e ' while (<>) { chomp; if( $_ =~ /(\d+)\.(\d+)/ ) { s/\./,/g; print "$_\n"; } else { print "$_\n" } }' filename

# 12  
Old 03-29-2007
Quote:
Originally Posted by anbu23
Code:
sed -e "s/\([0-9]\)\./\1,/g" -e "s/\.\([0-9]\)/,\1/g" file

Smilie

What is the need to replace number and ' . ' as number and ' , '
or
' . ' and number as ' , ' and number in a combined expression

just one of the them would do,

Code:
sed "s/\([0-9]\)\./\1,/g" a

or
Code:
sed "s/\.\([0-9]\)/,\1/g"  a

# 13  
Old 03-29-2007
Quote:
Originally Posted by matrixmadhan
Smilie

What is the need to replace number and ' . ' as number and ' , '
or
' . ' and number as ' , ' and number in a combined expression

just one of the them would do,

Code:
sed "s/\([0-9]\)\./\1,/g" a

or
Code:
sed "s/\.\([0-9]\)/,\1/g"  a

It wont work in the following cases
Code:
$ echo ".34" | sed "s/\([0-9]\)\./\1,/g"
.34
$ echo "23." | sed "s/\.\([0-9]\)/,\1/g"
23.

# 14  
Old 03-29-2007
this is cool! Smilie

It didnt strike for me about the ".34" and "34." kind of numbers

Code:
perl -e ' while (<>) { chomp; if( $_ =~ /(\d+)\.(\d+)/ || $_ =~ /\.(\d+)/ || $_ =~ /(\d+)\./ ) { s/\./,/g; print "$_\n"; } else { print "$_\n" } }' filename
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