how to match an alphanumeric string like the following.
i have to do like the following.
if the input line is
the data is {clock_91b}
i have to replace that with
the string was ("clock_91b")
i tried like
$line =~ s/the data is\s+\{(+)\}/the string was \(\"$1\"\)/
which... (4 Replies)
I have a file I'm trying to sort such as
fred1
fred2
fred10
fred11
...
when I sort I get
fred1
fred10
fred11
fred2
...
using sort can any give me the syntax to sort this is dict order
e.g., (4 Replies)
Hi :)
I am writing a ksh
I have a string of general format
A12B3456CD78
the string is of variable length
the string always ends with numbers (here it is 78.. it can be any number of digits may be 789 or just 7)
before these ending numbers are alphabets (here it is CD can even be... (3 Replies)
I have a requirement where I need to check if
where r1v07l09ab is a software release.
I should always check for this to be true to continue the release deployment because an older release should not be deployed by mistake. I mean only the release greater than the current release should be... (3 Replies)
Hi ,
I have a requirement where one column have to be sorted (delimiter is pipe)
for eg:
My input filed is as below
1|FIAT|0010103|23011|01/01/2000|31/12/9999|1.15
2|232|613|1
2|234|743|1
2|234|793|1
2|234|893|1
1|FIAT|0010103|23012|01/01/2000|31/12/9999|1.15
2|230|006|0
2|230|106|0... (9 Replies)
Hi!
Could anyone so kindly help me a code to eliminate from a txt file, obtained by collecting and merge several web-page, every word (string) containing non alphabetical, numeric and punctuation character (i.e NON a-zA-Z0-9, underscore and punctuation mark)?
Thanks a lot for the help to... (5 Replies)
Hi All,
I have files with a column which has values and ranges, for example
colA colB
ERD1 3456
ERD2
ERD3 4456
I want to have the following output
colA colB colC
ERD1 3456 3456
ERD2 526887 526890
ERD3 4456 4456
Being a newbie to... (2 Replies)
Hi All,
I want sort following files in ascending order.
exp_installer_CC4160-file10.dmp
exp_installer_CC4160-file11.dmp
exp_installer_CC4160-file12.dmp
exp_installer_CC4160-file13.dmp... (3 Replies)
I have a lot of data that need to be sorted alphanumerically. I began using sort -du and it solved almost all my problems. However, when I encountered files with data like this it began to fail:
/vol/close_eng_ice_0888
/vol/open_eng_ice_0890
/vol/open_eng_ice_08923
/vol/open_eng_ice_0893... (6 Replies)
Discussion started by: newbie2010
6 Replies
LEARN ABOUT CENTOS
cpupower-set
CPUPOWER-SET(1) cpupower Manual CPUPOWER-SET(1)NAME
cpupower-set - Set processor power related kernel or hardware configurations
SYNOPSIS
cpupower set [ -b VAL ] [ -s VAL ] [ -m VAL ]
DESCRIPTION
cpupower set sets kernel configurations or directly accesses hardware registers affecting processor power saving policies.
Some options are platform wide, some affect single cores. By default values are applied on all cores. How to modify single core configura-
tions is described in the cpupower(1) manpage in the --cpu option section. Whether an option affects the whole system or can be applied to
individual cores is described in the Options sections.
Use cpupower info to read out current settings and whether they are supported on the system at all.
Options--perf-bias, -b
Sets a register on supported Intel processore which allows software to convey its policy for the relative importance of performance
versus energy savings to the processor.
The range of valid numbers is 0-15, where 0 is maximum performance and 15 is maximum energy efficiency.
The processor uses this information in model-specific ways when it must select trade-offs between performance and energy efficiency.
This policy hint does not supersede Processor Performance states (P-states) or CPU Idle power states (C-states), but allows software to
have influence where it would otherwise be unable to express a preference.
For example, this setting may tell the hardware how aggressively or conservatively to control frequency in the "turbo range" above the
explicitly OS-controlled P-state frequency range. It may also tell the hardware how aggressively it should enter the OS requested C-
states.
This option can be applied to individual cores only via the --cpu option, cpupower(1).
Setting the performance bias value on one CPU can modify the setting on related CPUs as well (for example all CPUs on one socket),
because of hardware restrictions. Use cpupower -c all info -b to verify.
This options needs the msr kernel driver (CONFIG_X86_MSR) loaded.
--sched-mc, -m [ VAL ]
--sched-smt, -s [ VAL ]
--sched-mc utilizes cores in one processor package/socket first before processes are scheduled to other processor packages/sockets.
--sched-smt utilizes thread siblings of one processor core first before processes are scheduled to other cores.
The impact on power consumption and performance (positiv or negativ) heavily depends on processor support for deep sleep states, fre-
quency scaling and frequency boost modes and their dependencies between other thread siblings and processor cores.
Taken over from kernel documentation:
Adjust the kernel's multi-core scheduler support.
Possible values are:
0 - No power saving load balance (default value)
1 - Fill one thread/core/package first for long running threads
2 - Also bias task wakeups to semi-idle cpu package for power savings
SEE ALSO cpupower-info(1), cpupower-monitor(1), powertop(1)AUTHORS --perf-bias parts written by Len Brown <len.brown@intel.com>
Thomas Renninger <trenn@suse.de>
22/02/2011 CPUPOWER-SET(1)