Search Results

It`s in my second post:

./example1
bash: ./example1: No such file or directory

Hi,

If I write in a c file :

execlp("date","date",NULL);
printf("A\n");
And then run through the terminal would "A" be printed ?

I understood that execlp will exit the program after it...

I did 'gcc -o example1 first.c'

This is what I get when trying to run the object
./example1
bash: ./example1: No such file or directory


Though I did add the error that showed when I tried to run the first.c file:
./first.c:...

Hi,

I have tried running c file with:
gcc -o example1 first.c
./first.c




But got :


./first.c: line 6: syntax error near unexpected token `!=0'
./first.c: line 6: `if( fork()!=0 )'...

Hi,

This is the content of a file name "test.sh":

#!/bin/bash
if [ ! -f $2 ]; then
echo "I am Here"
fi

When runing the command:
./test.sh chair table

The echo command "I am Here"...

I was asked to add this piece of code to a c program which I will execute through the shell:

for(long i = 0; i < NITER; i++)
{ sem_wait( &sema);
count++;
sem_post( &sema); }

I didn't get it,...

Thanks,

but it ended up the same way

Hi,

I have this simple c program that creates duplicate process with fork():

#include <sys/types.h>
main()
{
if (fork() == 0)
while(1);
else
while(1);
}

I tried running it in the...

I understood the supposed function of sed with &, but this explanation (I read something similar before posting) doesn't explain to me why the set of numbers appears twice, and how the output came to...

Hi,

I can't seem to understand what the sed and & do.. Why is the set of numbers appear twice ? how the command really work ?

echo "123 abc" | sed 's/[0-9]*/& www &/'


Output:
123 www 123...

Thank you, so the x=$1 assignment doesn't serve any noticeable purpose in this script ?

B.In truth, the for loop doesn't iterates just three times for $1 $2 $3 as defined but rather one time for...

Hello,

How come the following script adds each numeric value to a total sum ?

x=$1
func()
{
for i in $1 $2 $3; do
let x= $x+$i
done }

func "8 8 8" 9 9

echo $x



A.How the...

Hello,

Giving those commands:

cat > myfile
1
2
3
^D
cat myfile | awk '{ s=s+$1 ; print s}'

The output is:

1
3
6

It seems like this command iterates each time on a different...