Multiple File Descriptors
up vote
0
down vote
favorite
Can we open a file with two different open() system calls?
My purpose is to write something into the file with the first file descriptor and to read something from the file with the second descriptor.
files filesystem
asked Nov 24 at 18:12
Goktug
1136
add a comment |
up vote
0
down vote
favorite
Can we open a file with two different open() system calls?
My purpose is to write something into the file with the first file descriptor and to read something from the file with the second descriptor.
files filesystem
asked Nov 24 at 18:12
Goktug
1136
1
Have you actually tried anything yet to test this? Should be a simpleCorwhatever your favorite language of the day isprogram.
– Doug O'Neal
Nov 24 at 18:23
you are right, I handled it.
– Goktug
Nov 24 at 20:30
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
Can we open a file with two different open() system calls?
My purpose is to write something into the file with the first file descriptor and to read something from the file with the second descriptor.
files filesystem
asked Nov 24 at 18:12
Goktug
1136
Can we open a file with two different open() system calls?
My purpose is to write something into the file with the first file descriptor and to read something from the file with the second descriptor.
files filesystem
files filesystem
asked Nov 24 at 18:12
Goktug
1136
asked Nov 24 at 18:12
Goktug
1136
asked Nov 24 at 18:12
Goktug
1136
asked Nov 24 at 18:12
Goktug
1136
asked Nov 24 at 18:12
Goktug
1136
1136
1
Have you actually tried anything yet to test this? Should be a simpleCorwhatever your favorite language of the day isprogram.
– Doug O'Neal
Nov 24 at 18:23
you are right, I handled it.
– Goktug
Nov 24 at 20:30
add a comment |
1
Have you actually tried anything yet to test this? Should be a simpleCorwhatever your favorite language of the day isprogram.
– Doug O'Neal
Nov 24 at 18:23
you are right, I handled it.
– Goktug
Nov 24 at 20:30
1
1
Have you actually tried anything yet to test this? Should be a simple
C or whatever your favorite language of the day is program.– Doug O'Neal
Nov 24 at 18:23
Have you actually tried anything yet to test this? Should be a simple
C or whatever your favorite language of the day is program.– Doug O'Neal
Nov 24 at 18:23
you are right, I handled it.
– Goktug
Nov 24 at 20:30
you are right, I handled it.
– Goktug
Nov 24 at 20:30
add a comment |
1 Answer
1
active
oldest
votes
up vote
1
down vote
Yes.
Simple example in Bash:
$ touch foo
$ exec 3<foo 4>foo
$ echo hello >&4
$ cat <&3
hello
answered Nov 24 at 20:38
wjandrea
8,06342258
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
Yes.
Simple example in Bash:
$ touch foo
$ exec 3<foo 4>foo
$ echo hello >&4
$ cat <&3
hello
answered Nov 24 at 20:38
wjandrea
8,06342258
add a comment |
up vote
1
down vote
Yes.
Simple example in Bash:
$ touch foo
$ exec 3<foo 4>foo
$ echo hello >&4
$ cat <&3
hello
answered Nov 24 at 20:38
wjandrea
8,06342258
add a comment |
up vote
1
down vote
up vote
1
down vote
Yes.
Simple example in Bash:
$ touch foo
$ exec 3<foo 4>foo
$ echo hello >&4
$ cat <&3
hello
answered Nov 24 at 20:38
wjandrea
8,06342258
Yes.
Simple example in Bash:
$ touch foo
$ exec 3<foo 4>foo
$ echo hello >&4
$ cat <&3
hello
answered Nov 24 at 20:38
wjandrea
8,06342258
answered Nov 24 at 20:38
wjandrea
8,06342258
answered Nov 24 at 20:38
wjandrea
8,06342258
answered Nov 24 at 20:38
wjandrea
8,06342258
8,06342258
add a comment |
add a comment |
Thanks for contributing an answer to Ask Ubuntu!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1095710%2fmultiple-file-descriptors%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
Have you actually tried anything yet to test this? Should be a simple
Corwhatever your favorite language of the day isprogram.– Doug O'Neal
Nov 24 at 18:23
you are right, I handled it.
– Goktug
Nov 24 at 20:30