UNIX help

[[hack]supernova]

hi i'm new to unix and can someone tell me what is doing this
g/^{/.-1p
line in the ed editor in unix? I wrote it in ed but nothing happend!10x

[SirDice]

All newbies must learn man, man man for more info

I don't get the last p bit?!?

g/<something>/ means print lines that contain <something>. ^ is the start of a line. { is just the karakter {. So g/^{/ means print all lines that begin with {.

A . (dot) means current addres or line and -1 well.. ehm

so if test.txt contains:

something
test
{ here
there {

>ed test.txt
30
g/^{/
{ here
g/^{/.-1
test
g/^{/.+1
there {

[[hack]supernova]

10x man :} -1 and p i know what they mean,about man u r absolutely right