Replacing pattern

Shell Programming and Scripting
1

Hi,

I have a file which contains the below data. I want to change pattern to correct format.

 
[root@ client]# tail -1 test.log | awk '{print $8}'
10/09/23
[root@client]#

I want the format to be 23/09/10

2

try this,

 tail -1 test.log | awk '{print $8}' | perl -nle 'if (/(\d{2})\/(\d{2})\/(\d{2})/) {print $3,"/",$2,"/",$1} ;'
3

Thanks it working

 
[root@a client]#tail -1 test.log | awk '{print $8}' | perl -nle 'if (/(\d{2})\/(\d{2})\/(\d{2})/) {print $3,"/",$2,"/",$1} ;'
23/09/10
[root@a client]#

But I was checking with sed command

4 
# tail -1 test.log | awk '{print $8}' | sed 's|\(.*\)/\(.*\)/\(.*\)$|\3/\2/\1|'
23/09/10
5

Thanks

6

all in one.

awk 'END{split($8,a,"/");print a[3],a[2],a[1]}' OFS="/" test.log