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Full Discussion: Ps command different behaviour
Operating Systems Linux Red Hat Ps command different behaviour Post 302981203 by Albert_Pinto7 on Thursday 8th of September 2016 01:05:54 PM
Old 09-08-2016
Ps command different behaviour
Hi Experts,

ps command behavior in Redhat is such that it outputs all the output(of long lengths). In Unix the ps command output was limited to only 80 chars. In that if you pipe its output to another command hen the 80 chars restriction wouldn't be there. This 80 char limitation will only be there for the screen output.

Is there any property/setup file for ps command on redhat which we may tweak to curtail the output to some specific characters?

There is an option --cols n which can curtail the output to n specific chars. But if we use this and pipe to another command, the another command will only get n chars as input from ps command.

My regards,
Albert
 

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LEARN ABOUT REDHAT

uniq

UNIQ(1) 								FSF								   UNIQ(1)

NAME

       uniq - remove duplicate lines from a sorted file

SYNOPSIS

       uniq [OPTION]... [INPUT [OUTPUT]]

DESCRIPTION

       Discard all but one of successive identical lines from INPUT (or standard input), writing to OUTPUT (or standard output).

       Mandatory arguments to long options are mandatory for short options too.

       -c, --count
	      prefix lines by the number of occurrences

       -d, --repeated
	      only print duplicate lines

       -D, --all-repeated[=delimit-method] print all duplicate lines
	      delimit-method={none(default),prepend,separate} Delimiting is done with blank lines.

       -f, --skip-fields=N
	      avoid comparing the first N fields

       -i, --ignore-case
	      ignore differences in case when comparing

       -s, --skip-chars=N
	      avoid comparing the first N characters

       -u, --unique
	      only print unique lines

       -w, --check-chars=N
	      compare no more than N characters in lines

       --help display this help and exit

       --version
	      output version information and exit

       A field is a run of whitespace, then non-whitespace characters.	Fields are skipped before chars.

AUTHOR

       Written by Richard Stallman and David MacKenzie.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The full documentation for uniq is maintained as a Texinfo manual.  If the info and uniq programs are properly installed at your site,  the
       command

	      info uniq

       should give you access to the complete manual.

uniq (coreutils) 4.5.3						   February 2003							   UNIQ(1)
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