Field size finder

pravfraz · February 3, 2010, 6:19am

hi
i have a file and its contents is as below:

8290804808
1338108313
1313141441
13131313133
1313131311
33424242242
23242424242

i want to print only those fields in bold. how to do it?

Scott · February 3, 2010, 6:24am

Fields 11 characters long?

sed "/^.\{11\}$/!d" input_file

or the same in awk

awk 'length == 11' input_file

rdcwayx · February 3, 2010, 6:36am

sed -n '/^.\{11\}$/p' urfile
awk -F "" 'NF==11' OFS=""  urfile

pravfraz · February 3, 2010, 6:39am

thanks a bunch!!! it works:)