How to spilt huge string in AIX ? Post: 302402778

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Operating Systems AIX How to spilt huge string in AIX ? Post 302402778 by bakunin on Wednesday 10th of March 2010 03:42:26 PM

03-10-2010

Registered User

Quote:

Originally Posted by funksen

you could also use read

Code:

echo $CMD_ARGS | read FOO WHATYOUWANT

echo $WHATYOUWANT[/code]

funksen is correct. Per default the shell uses whitespace as field separator. I learned scripting on an IBM mainframe using REXX so i still follow the (there customary) convention of naming throw-away variables "." which works in ksh too. Like this:

Code:

typeset content=""
echo "word1 word2 word3 word4" | read . . content .
print - "$content"

But this sounds like a problem to me:

Quote:

Originally Posted by ak835

I have a variable whose value is a very huge string ...(5000+ characters

As far as i remember the maximum line length for a ksh input line is a system constant and is IIRC 4096 or 8192 characters. If your string is more than 5k characters long a command with this string as argument will either already fail due to shell restrictions or at least be in danger of failing if the string grows over time. The error message will be something like "argument list too long" or something such. You might want to redesign the process which leads to such extraordinary long argument lists.

I hope this helps.

bakunin

bakunin

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hugetlbfs_find_path

HUGETLBFS_FIND_PATH(3)					     Library Functions Manual					    HUGETLBFS_FIND_PATH(3)

NAME

       hugetlbfs_find_path, hugetlbfs_find_path_for_size - Locate an appropriate hugetlbfs mount point

SYNOPSIS

       #include <hugetlbfs.h>

       const char *hugetlbfs_find_path(void);
       const char *hugetlbfs_find_path_for_size(long page_size);

DESCRIPTION

       These  functions  return  a  pathname  for a mounted hugetlbfs filesystem for the appropriate huge page size.  For hugetlbfs_find_path, the
       default huge page size is used (see gethugepagesize(3)).  For hugetlbfs_find_path_for_size, a valid huge page size must be  specified  (see
       gethugepagesizes(3)).

RETURN VALUE

       On success, a non-NULL value is returned.  On failure, NULL is returned.

SEE ALSO

       libhugetlbfs(7), gethugepagesize(3), gethugepagesizes(3)

AUTHORS

       libhugetlbfs was written by various people on the libhugetlbfs-devel mailing list.

								   March 7, 2012					    HUGETLBFS_FIND_PATH(3)