I am working on this idea that I want to process some information from a command dump.
Using the dump I will search for a string. If it finds the string, it must post a
different/associated string to output/logfile.
Example:
'Find "cookie jar"' then 'echo "carpool/tomorrow" > logfile'
It does not stop with 1 string to search for, it will have around 100 different
strings to search for, and everyone have some other content assigned to it, thus it
should be some clever loop.
I COULD have written one grep for each value, but since it is growing by the day,
I find that a waste of lines and bytes.
To prevent an infinite loop, it should remove what it has already found from the
sourcelist of what to search for or somehow mark it as processed.
(The sourcelist is overwritten each time the PC boots with an updated one)
The tricky bit for me is both how I can arrange it with a HASH table, I've done
something similar in PERL, but in BASH/AWK I am unable to do this. The system is very
limited and its not permitted toexpand on its available apps by any byte atm.
I've drawn out how I think the design is going to work.
In itself, there are several commands it will search the output for, but I am used to
having a launch script, that then uses a "core search" script with the variables that
designs it to that and that output file, predefined variables file and logfile.
It gives control and scalabillity ;-)
(The pink area is where the core script loops in itself to search for every available word)
Is this hard to acomplish?
I've written some BASH scripts in the past, aswell as some BATCH and PERL scripts,
though nothing close to this complexity.
I have a file with a format of
A,2
B,2
G,3
A,2
A,3
A,2
D,7
A,2
E,2
A,2
I need to create a sum of each alphabet with the numbers assigned to it using awk. (2 Replies)
I have a script with dynamic hash of hashes , and I want to print the entire hash (with all other hashes).
Itried to do it recursively by checking if the current key is a hash and if yes call the current function again with refference to the sub hash.
Most of the printing seems to be OK but in... (1 Reply)
Hello,
I have a hash in hsh. I need to assign it to another hash globalHsh. I think the below statement does not work
$globalHsh{$id} = %hsh;
What is the right way to assign it?
Thanks (3 Replies)
Can Someone explain me why even using Tie::IxHash I can not get the output data in the same order that it was inserted? See code below.
#!/usr/bin/perl
use warnings;
use Tie::IxHash;
use strict;
tie (my %programs, "Tie::IxHash");
while (my $line = <DATA>) {
chomp $line;
my(... (1 Reply)
Hi,
In Perl, is it possible to use a range of numbers with '..' as a key in a hash?
Something in like:
%hash = (
'768..1536' => '1G',
'1537..2560' => '2G'
);
That is, the range operation is evaluated, and all members of the range are... (3 Replies)
Hi,
I have an hashes of hash, where hash is dynamic, it can be n number of hash. i need to compare data_count values of all .
my %result (
$abc => {
'data_count' => '10',
'ID' => 'ABC122',
}
$def => {
'data_count' => '20',
'ID' => 'defASe',
... (1 Reply)
Hi, I am also a newbie in awk and trying to find solution of my problem.
I have one reference file 1.txt with 2 columns and I want to search other 10 files (a.txt, b.txt......h.txt each with 5 columns) corresponding to the values of 2nd column from 1.txt. If the value from 2nd column from 1.txt... (0 Replies)
Hi, I have a hash of hash where it has
name, activities and count
i have data like this -
$result->{$name}->{$activities} = $value;
content of that are -
name - robert tom cat peter
activities - running, eating, sleeping , drinking, work
i need to print output as below
... (3 Replies)
Discussion started by: asak
3 Replies
LEARN ABOUT CENTOS
logsave
LOGSAVE(8) System Manager's Manual LOGSAVE(8)NAME
logsave - save the output of a command in a logfile
SYNOPSIS
logsave [ -asv ] logfile cmd_prog [ ... ]
DESCRIPTION
The logsave program will execute cmd_prog with the specified argument(s), and save a copy of its output to logfile. If the containing
directory for logfile does not exist, logsave will accumulate the output in memory until it can be written out. A copy of the output will
also be written to standard output.
If cmd_prog is a single hyphen ('-'), then instead of executing a program, logsave will take its input from standard input and save it in
logfile
logsave is useful for saving the output of initial boot scripts until the /var partition is mounted, so the output can be written to
/var/log.
OPTIONS -a This option will cause the output to be appended to logfile, instead of replacing its current contents.
-s This option will cause logsave to skip writing to the log file text which is bracketed with a control-A (ASCII 001 or Start of
Header) and control-B (ASCII 002 or Start of Text). This allows progress bar information to be visible to the user on the console,
while not being written to the log file.
-v This option will make logsave to be more verbose in its output to the user.
AUTHOR
Theodore Ts'o (tytso@mit.edu)
SEE ALSO fsck(8)E2fsprogs version 1.42.9 December 2013 LOGSAVE(8)