I am new to Ubuntu, wanted to code for reader-writer block in Operating System, but when I fired the command man pthread
it gave me an error no manual entry for pthread. What can be done to resolve the problem?
3 Answers
First install these manpages:
sudo apt-get install manpages-posix manpages-posix-dev
and then:
man pthreads
Now it should work.
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1Thanks. I guess this is one of those things you've just got to know? Oct 14, 2014 at 16:34
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2or
sudo apt install glibc-doc
, since theglibc-doc
package should include Linux-specific man pages– xealitsSep 22, 2020 at 13:30
Ok, so the man page you look for is not there:
$ man pthread
No manual entry for pthread
Hmm... let's look for something similar!
We will se man
option -k
for that:
$ man -k pthread
pthread_attr_destroy (3) - initialize and destroy thread attributes object
pthread_attr_getaffinity_np (3) - set/get CPU affinity attribute in thread attributes object
pthread_attr_getdetachstate (3) - set/get detach state attribute in thread attributes object
pthread_attr_getguardsize (3) - set/get guard size attribute in thread attributes object
[... 47 more lines ...]
pthread_timedjoin_np (3) - try to join with a terminated thread
pthread_tryjoin_np (3) - try to join with a terminated thread
pthread_yield (3) - yield the processor
pthreads (7) - POSIX threads
vfs_aio_pthread (8) - implement async I/O in Samba vfs using a pthread pool
Ok... some related stuff... Oh! pthreads
looks interesting!
$ man pthreads|head -n 12
PTHREADS(7) Linux Programmer's Manual PTHREADS(7)
NAME
pthreads - POSIX threads
DESCRIPTION
POSIX.1 specifies a set of interfaces (functions, header
files) for threaded programming commonly known as POSIX
threads, or Pthreads. A single process can contain multiple
threads, all of which are executing the same program. These
Now, looks like we found it!
Even if we have installed related man packages, we may still suffer "No manual entry for pthread".
On ubuntu, we should use
man pthreads (note the bold s)
instead of
man pthread