# client
# sender
# recipient
# relay
# smtpd_client_restrictions
# smtpd_sender_restrictions
# smtpd_recipient_restrictions
# smtpd_relay_restrictions
# smtpd_data_restrictions
# smtpd_end_of_data_restrictions
# smtpd_helo_restrictions
# smtpd_etrn_restrictions
mynetworks=
myhostname=
smtpd_helo_required=yes
# permit_mynetworks
# check_policy_service
# unknown
# reject_unknown_client
# reject_unknown_client_hostname
# reject_unknown_reverse_client_hostname
# reject_unknown_hostname
# reject_unknown_helo_hostname
# reject_unknown_sender_domain
# reject_unknown_recipient_domain
# hostname
# reject_unknown_client_hostname
# reject_unknown_reverse_client_hostname
# reject_unknown_hostname
# reject_invalid_hostname
# reject_non_fqdn_hostname
# reject_unknown_helo_hostname
# non_fqdn
# reject_non_fqdn_hostname
# reject_non_fqdn_sender
# reject_non_fqdn_recipient
# sender
# reject_non_fqdn_sender
# reject_unknown_sender_domain
# recipient
# reject_non_fqdn_recipient
# reject_unknown_recipient_domain
# unauth
# reject_unauth_pipelining
# reject_unauth_destination
a CAPABILITY
a LOGIN "user" "password"
a LIST "" *
a SELECT INBOX
a FETCH 1 RFC822
a STORE 1 +FLAGS (\Seen \Deleted)
a CLOSE
a EXPUNGE
a SEARCH
a LOGOUT
HELO/EHLO
MAIL
DATA
RST
VRFY
EXPN
NOOP
QUIT
Return-Path:
Recevied:
From:
To:
Subject:
Date:
Message-ID:
User-Agent:
MIME-Version:
Content-Transfer-Encoding:
Content-Type:
Importance:
Reply-To:
X-Assp-..:
X-Priority:
X-Reply-To:
%{
#include <stdio.h>
#include <ctype.h>
%}
%token NUMBER
%%
lines : lines expr '\n' {printf("%d\n", $2);}
| lines '\n'
;
expr : expr '+' term {$$=$1+$3;}
| expr '-' term {$$=$1-$3;}
| term
;
term : term '*' factor {$$=$1*$3;}
| term '/' factor {$$=$1/$3;}
| factor
;
factor : '(' expr ')' {$$=$2;}
| NUMBER
;
statement -> assignment | cond | loop
assignment -> id := expr
cond -> if boolexpr then statement fi |
if boolexpr then statement else statement fi
loop -> while boolexpr do statement od
expr -> boolexpr | numexpr
boolexpr -> numexpr cop numexpr
numexpr -> numexpr + term | term
term -> term * factor | factor
factor -> id | const | (numexpr)
./skript.sh
/bin/bash ./skript.sh
bash skript.sh
#!/bin/bash
echo "Dies ist eine Ausgabe"
# Dies ist ein Kommentar
var1=Hallo
var2=Welt
echo $var1
echo $var2
if [ $var1 == $var2 ]
then
echo $var1
else
echo $var2
fi
while [ $var1 == $var2 ]
do
echo $var1
done
for var3 in "1 " "2 " "3 "
do
echo $var3
done
typeset -i i=3
i=$(( 4 ))
i=$(( 4+4 ))
while [ $i -le 50 ]
do
echo $i
i=$(( $i+1 ))
done
useradd
userdel
usermod
newgrp
groupadd
groupdel
groupmod
passwd
id
chsh
chfn
mv
mmv
mkdir
cd
cp
touch
rm
rmdir
unlink
ln
ls
basename
dirname
lsof
lsblk
blkid
man
info
grep
locate
updatedb
dd
cut
cat
diff
comm
shred
sort
paste
split
mount/umount
exit
echo
.- a
-... b
-.-. c
-.. d
. e
..-. f
--. g
.... h
.. i
.--- j
-.- k
.-.. l
-- m
-. n
--- o
.--. p
.-. r
... s
- t
..- u
...- v
Anton
Berta
Caesar
Dora
Emil
Friedrich
Gustav
Heinrich
Ida
Julius
Kaufmann
Ludwig
Marta
November
Oskar
Paule
Quelle
Richard
Samuel
Theodor
Ulrich
Viktor
Wilhelm
Xantippe
Ypsilon
Zacharias
Pipeline
Pipeline-Stufe = Pipeline-Segment
Pipeline-Maschinentakt
Pipeline-Register
Durchsatz einer Pipeline
Befehl holen
Befehl dekodieren
Operanden bereitstellen
Operationen in der ALU
Resultat zurückschreiben
IF = Instruction Fetch = Befehlsholephase
ID = Instruction Decode/Register Fetch = Befehlsdekodierphase
EX = Execute/Adress Calculation = Ausführungsphase
MEM = Memory Access = Speicherzugriffsphase
WB = Write Back = Resultatspeicherphase
1. Datenkonflikte
2. Struktur und Ressourcenkonflikte
3. Steuerflusskonflikte
Datenkonflikte
1. Echte Datenabhängigkeit - Lese-nach-Schreib-Konflikt - Read after Write - RAW
2. Gegenabhängigkeit - Anti Dependence - WAR
3. Ausgabeabhängigkeit - Output Dependence - WAW
Lösungen:
1. Durch den Compiler
2. Erkennnung durch Hardware - Pipeline-Sperrung - Interlocking - Stalling
BTAC - Branch Target Adress Cache
Branch Adress Cach
BTB - Branch Target Buffer
1. Predict always not taken
2. Predict always taken
3. Predict backward taken, forward not taken
1-Bit-Prädiktor
- T - Taken - Genommen
- NT - Not Taken - Nicht genommen
2-Bit-Prädiktor
- Predict strongly taken
- Predict weakly taken
- Predict weakly not taken
- Predict strongly not taken
fopen
flcose
fflush
ferror
perror
strerror
fseek
fsetpos
fgetpos
rewind
remove
rename
mkstmp
tmpfile
printf
scanf
fprintf
fscanf
sprintf
sscanf
getch
getc
fgetc
putc
fputc
ungetc
fgets
gets
fputs
puts
arsort
asort
sort
rsort
natcasesort
natsort
explode
implode
in_array
key_exists
