Hi,
I have one basic doubt, that using grep command frequently , will it have direct impact on the CPU load, pls clarify
for eg, if i run a non stop script containing while loop to grep some parameters, what will be the load in CPU..
thanks (3 Replies)
Hello,
I have a list in .txt format of email addresses and I need to extract just a specific domain ...
The list format is like:
"123456";"user@domain.com";"email";"john";"name"
"123457";"user2@domain.com";"email";"john";"name"
"123458";"user3@domain.com";"email";"john";"name"... (7 Replies)
Hello,
I am trying to use grep to locate multiple uses of the same word in the same line. The word has to be 3+ char, upper or lower or both.
I tried this code
<code>
grep \({3,}\)*\1 i*
</code>
and i turned out zero results. Any ideas?
____________________________________________... (5 Replies)
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
my file contains
xxabced.p dlksfad;
dflsdkjflkds flksdjflkdioewf
erfsdlkfjsdla;
dlkfjsd;lfkj msgdadf.p dslk kdjflksdjfl;asdfasdfjkljl
fdsf;jd ppuskldf.p
i want the output is
xxabced.p
msgdadf.p
ppuskldf.p
Can any one give the command? (1 Reply)
Hi all,
I have a file resp_cde.ats which has values as:-
APPDIR=C:\Program Files\Cogny\cert
PUBSDIR=C:\Program Files\Cognoy\cert\documentation
TOURDIR=C:\Program Files\Cognoy\cert\tour
DATADIR=C:\Program Files\Cognoy\cert\data
Now I use the grep command in a shell script:-
x=`grep... (2 Replies)
There is a file name list_filenames.dat, this has all the list of all files I need to encrypt, I did not understand what the following syntax is doing:
grep -s "^$1" list_filenames.dat, when I manually run this command it just returns all the lines, what is the usage of this ? can someone... (4 Replies)
Discussion started by: okkadu
4 Replies
LEARN ABOUT OSX
rake
RAKE(1) Ruby Programmers Reference Guide RAKE(1)NAME
rake -- Ruby Make
SYNOPSIS
rake [--f Rakefile] [--version] [-CGNPgnqstv] [-D [PATTERN]] [-E CODE] [-I LIBDIR] [-R RAKELIBDIR] [-T [PATTERN]] [-e CODE] [-p CODE]
[-r MODULE] [--rules] [variable=value] target ...
DESCRIPTION
Rake is a simple ruby(1) build program with capabilities similar to the regular make(1) command.
Rake has the following features:
o Rakefiles (Rake's version of Makefiles) are completely defined in standard Ruby syntax. No XML files to edit. No quirky Makefile syntax
to worry about (is that a tab or a space?).
o Users can specify tasks with prerequisites.
o Rake supports rule patterns to synthesize implicit tasks.
o Flexible FileLists that act like arrays but know about manipulating file names and paths.
o A library of prepackaged tasks to make building rakefiles easier.
OPTIONS --version Display the program version.
-C
--classic-namespace
Put Task and FileTask in the top level namespace
-D [PATTERN]
--describe [PATTERN]
Describe the tasks (matching optional PATTERN), then exit.
-E CODE
--execute-continue CODE
Execute some Ruby code, then continue with normal task processing.
-G
--no-system
--nosystem Use standard project Rakefile search paths, ignore system wide rakefiles.
-I LIBDIR
--libdir LIBDIR Include LIBDIR in the search path for required modules.
-N
--no-search
--nosearch Do not search parent directories for the Rakefile.
-P
--prereqs Display the tasks and dependencies, then exit.
-R RAKELIBDIR
--rakelib RAKELIBDIR
--rakelibdir RAKELIBDIR
Auto-import any .rake files in RAKELIBDIR. (default is rakelib )
-T [PATTERN]
--tasks [PATTERN] Display the tasks (matching optional PATTERN) with descriptions, then exit.
-e CODE
--execute CODE Execute some Ruby code and exit.
-f FILE
--rakefile FILE Use FILE as the rakefile.
-h
--help Prints a summary of options.
-g
--system Using system wide (global) rakefiles (usually ~/.rake/*.rake ).
-n
--dry-run Do a dry run without executing actions.
-p CODE
--execute-print CODE
Execute some Ruby code, print the result, then exit.
-q
--quiet Do not log messages to standard output.
-r MODULE
--require MODULE Require MODULE before executing rakefile.
-s
--silent Like --quiet, but also suppresses the 'in directory' announcement.
-t
--trace Turn on invoke/execute tracing, enable full backtrace.
-v
--verbose Log message to standard output (default).
--rules Trace the rules resolution.
SEE ALSO ruby(1)make(1)
http://rake.rubyforge.org/
REPORTING BUGS
Bugs, features requests and other issues can be logged at <http://onestepback.org/redmine/projects/show/rake>.
You will need an account to before you can post issues. Register at <http://onestepback.org/redmine/account/register>. Or you can send an
email to the author.
AUTHOR
Rake is written by Jim Weirich <jim@weirichhouse.org>
UNIX November 7, 2012 UNIX