Shell Scripting

[rebel2000]

Den kserw an prepei na vriskete edw ayto to topic h sta leitourgika...an den einai edw h thesh tou metakiniste to.

>
#!/bin/sh
IFS=" "
for line in `who -u`;do
min=`echo $line | awk {'print $5'} | cut -d: -f2`
hour=`echo $line | awk {'print $5'} | cut -d: -f1`
echo $hour : $min
done;

giati den douleuei??ti exw kanei lathos?

[ancalagon]

Ean exo katalabei kala kai thes gia ena tetoio output:

root pts/0 Dec 15 23:50 . 505 (10.0.0.153)

kati tetoio

23 : 50

 

Tote alla3e to IFS="\n". Ean den 3ereis ti einai to IFS sou leo plhroforiaka oti einai o delimiter gia to input ton programmaton.

[rebel2000]

Nai ayto hthela...ola ok twra!

To "\n" ti einai?Sunithws evaza keno,<tab>,:,h nea grammh einai opws sth C h asxeto?

Exw kai alles 2 erwtisoules :

1) Mhpws ksereis kai ti shmainei to "unary operator expected"??Mou to vgazei se mia if [ $min -lt $nmin ] kapws etsi : [: -lt: unary operator expected

2) Pws mporw na steilw ena munhma se enan allo user pou einai sundedemenos sto mhxanhma mesw telnet?Ekana man alla den me voithise polu.

Thanks!!!

[rebel2000]

to pws na steilw mhnuma to vrhka...oson afora ta alla kserei kaneis??