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Delete lines after semicolon

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# 1  
Old 09-05-2010
Question Delete lines after semicolon
Code:
char str[MAX]; char str [MAX];
char *ptr; char * ptr;
int CASE; int CASE;
double temp; double temp;

Output should be:
Code:
char str[MAX];
char *ptr;
int CASE;
double temp;

How can i do this with awk,sed,perl?
# 2  
Old 09-05-2010
Code:
 perl -pe 's/;.*/;/' file

# 3  
Old 09-05-2010
Code:
awk -F ";" '{print $1";"}' file

# 4  
Old 09-05-2010
And with sed, just like the perl solution of bartus11:
Code:
sed 's/;.*/;/' file

# 5  
Old 09-05-2010
It's a cpp source code.It may contain for loop
Code:
char str[MAX]; char str [MAX];
char *ptr; char * ptr;
int CASE; int CASE;
double temp; double temp;
for(int i=0;i<=10;i++){
...
}

Output should be:
Code:
char str[MAX]; char str [MAX];
char *ptr; char * ptr;
int CASE; int CASE;
double temp; double temp;
for(int i=0;i<=10;i++){
...
}

for loop would be unchanged.
# 6  
Old 09-05-2010
Code:
awk '/{/{p=1}/}/{p=0}!p{sub(";.*",";")}1' file

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