sed

[Antonios-Kornilios Kourtis]

On Wed, Jul 28, 2004 at 01:43:47AM +0300, Antonios-Kornilios Kourtis wrote:
> On Wed, Jul 28, 2004 at 12:36:20AM +0300, Nikos Kanellopoulos wrote:
> > Ξέρεις κανείς πώς γίνεται με το sed
> > κάτι ανάλογο με το  grep -o ;
> 
> Egw kapws etsi 8a to ekana :
> 
> sed -n 's/.*\(match\).*/\1/p' 
> 

Basika paizontas ligo parathrhsa oti auto pou grafw parapanw (kai to
antistoixo tou Giorgou) den exei _akribws_ to idio apotelesma me to
grep -o

gia paradeigma:

$ cat > foo
lala koko lala
lala lala
koko lala
$ grep -o lala <foo
lala
lala
lala
lala
lala
$ sed -n 's/.*\(lala\).*/\1/p' < foo
lala
lala
lala

Mia aplh (sxetika) lysh gia petyxoume  to idio 
apotelesma me to grep -o 8a mporouse na einai:

$ sed -n -e 's/[^lala]/\n/pg' < foo | sed -e '/^$/d'
lala
lala
lala
lala
lala

An kai mallon yparxoun kai pio swstoi (TM) tropoi :-)

-- 
Kornilios Kourtis