ULIMIT(3) Linux Programmer's Manual ULIMIT(3)NAME
ulimit - get and set user limits
long ulimit(int cmd, long newlimit);
Warning: This routine is obsolete. The include file is no longer provided by glibc. Use getrlimit(2), setrlimit(2) and sysconf(3) instead.
For the shell command ulimit, see bash(1).
The ulimit call will get or set some limit for the current process. The cmd argument can have one of the following values.
Return the limit on the size of a file, in units of 512 bytes.
Set the limit on the size of a file.
3 (Not implemented for Linux.) Return the maximum possible address of the data segment.
4 (Implemented but no symbolic constant provided.) Return the maximum number of files that the calling process can open.
On success, ulimit returns a nonnegative value. On error, -1 is returned, and errno is set appropriately.
EPERM A non-root process tried to increase a limit.
SEE ALSO bash(1), getrlimit(2), setrlimit(2), sysconf(3)Linux 2.0 1998-06-12 ULIMIT(3)
Check Out this Related Man Page
ULIMIT(3) BSD Library Functions Manual ULIMIT(3)NAME
ulimit -- get and set process limits
Standard C Library (libc, -lc)
ulimit(int cmd, ...);
The ulimit() function will get and set process limits. Currently this is limited to the maximum file size. The cmd argument is one of the
UL_GETFSIZE will return the maximum file size in units of 512 blocks of the current process.
UL_SETFSIZE will attempt to set the maximum file size of the current process and its children with the second argument expressed as a long.
Upon successful completion, ulimit() returns the value requested; otherwise the value -1 is returned and the global variable errno is set to
indicate the error.
The ulimit() function will fail if:
[EINVAL] The command specified was invalid.
[EPERM] The limit specified to ulimit() would have raised the maximum limit value, and the caller is not the super-user.
SEE ALSO getrlimit(2)STANDARDS
The ulimit() function conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
The ulimit() function first appeared in FreeBSD 5.0.
The ulimit() function provides limited precision for setting and retrieving process limits. If there is a need for greater precision than
the type long provides, the getrlimit(2) and setrlimit(2) functions should be considered.
BSD January 4, 2003 BSD
I want to know the interrupt passed to a process through 'ulimit'
I am running a process which gets killed when the 'ulimit -t' reaches.
But after killing the process I want to start another process which would
send a message or do some clean up or anything at all.
To do the same I am... (5 Replies)
Is there a limit of 512Mb when doing a "chfs -a size=XXXXX /myfs" ?
I managed to increase /var to 512MB fine, no issues, then i wanted to increase /usr to 2Gb, but when i enter:
# chfs -a size=2260992 /usr
chfs: 0506-908 Cannot reduce size... (5 Replies)
I have a Sun machine 5.8 and would like to modify the ulimit parameter for numner of file descriptors.
the output of plimit <process name> is:
resource current maximum
time(seconds) unlimited unlimited
file(blocks) ... (8 Replies)
I am working on AIX and i dont have permission for /etc/security/limits file.
In the man page of ulimit it is mentioned that it will get the limitations for me from /etc/security/limits file.
the file permission for ulimit command is
-r-xr-xr-x 15 bin bin ... (6 Replies)
I would like to set the maximum number or open files per process to be greater than 1024000 (for specific application scalability purpose). I am using RHEL 5.3/Ext4.
fs.file-max = 164766821
I also have added the folloing to /etc/security/limits.conf
* ... (7 Replies)
When I run a bash script in the customer system, it throws the warning and script exits
Exec '/root/sample.sh' @ hostname-- OK
(warn) /root/sample.sh: pipe error: Too many open files in system
/root/sample.sh: n + : syntax error: operand expected (error token is " ")
Exec... (5 Replies)
I am doing bash and for that doing excersices. The folowing one asks for 3 numbers and is suppose to return the maximum. An error should be returned if on of the numbers is missing. I managed to solve it. Can you give me other ways or advices.
#Ecrire un... (5 Replies)
I need to increase the ulimit value permanently without changing /etc/system file. i.e nofiles descriptor.
For all NIS Users logging in.
I know the command to do this:
# ulimit -Sn 4096
This change is temporary.
So, I went on adding this command in the /etc/profile.
... (6 Replies)
I got a question on ulimit on HP-UX. I have a log file that gets more than 2 GB and the application crashes because it can not write to log. I browsed through the forum and found one very similar post on ulimit but that was not concluded. Did some analysis and below is some output.
>getconf... (6 Replies)
Hi im a complete noob to shell commands but here is my problem i have a dedicated server i7 with 24 gig ram i have whm/cpanel on it now ive added a minecraft system to root but i cannot set the server to more than 512mb memory i was told its because the memory is being blocked and was told to... (7 Replies)
what are the ideal/best/recommended ulimit settings for a root user in AIX?
I understand that it depends on our environment. But I would like to know...what are settings you guys use in your environment for best performance.
fsize = 2097151
core = 2097151
... (8 Replies)
Hi guys, man bash doesn't help much here nor does the WWW.
(I have discovered there is technically no limit to a bash array.)
I am thinking of adding a new full manual inside AudioScope.sh.
A few questions here.
The main question is, assuming I go ahead with this idea:-
Is there a limit... (6 Replies)
Is it possible to write an application in "c" that can be used to start other applications and limit a process from using certain Linux APIs ( in this case I want to keep a process from being able to access the internet ) ? I've been reading "The Linux Programming Interface" by Micheal Kerrisk ,... (11 Replies)
I'm new to scripting and I need to write a bash script. Here is example of file on which I'm working:
0.3092381 0.3262799 0.3425480 0.3578379 0.3719490
0.3846908 0.3958855 0.4053738 0.4130160 0.4186991
0.4223357 0.4238688 ... (14 Replies)