Qnx Pidin Like Tool For Linux

Hello,
Am desperately seeking my Python sketches that have disappeared into the SD-Card on a RaspberryPi that blocked. Realised now that it had become full. I have saved everything onto a laptop running Windows 8.1 and uncompressed various root.tar.xz files in Raspbian, Pidora, etc with 7-Zip.
I have looked numerous times through the Raspbian file and others but can find no trace. Do you have any idea where they might be. It was a NOOBs Card that I did not expand because I am a RPi novice but amateur coder in lots of different languages.
Any help would be gratefully received, Walter

hi all
i am new to linux system programming.
request u to give idea with examples for linux process creation fork() and exec setsig() setalarm(). how to catch these process id's

Regards
Bala

I am totally new to Linux. However, considering the many advantages of the operationg comparing to other OS, i have decided to go ahead with using MINT Rebacca which is the latest version. Initially for some time i did not have any issues in getting my internet connecton. However, for the last one week I am unable to connect through. The results of various terminal commands i applied is given below with a sincere trust somebody would be there to help me out.
----- anil@anil-HP-15-Notebook-PC ~ $ iwconfig eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSIDff/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thrff Fragment thrff Power Managementn anil@anil-HP-15-Notebook-PC ~ $

anil@anil-HP-15-Notebook-PC ~ $ ifconfig eth0 Link encap:Ethernet HWaddr f8:a9:63:90:62:b1 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:149 errors:0 dropped:0 overruns:0 frame:0 TX packets:149 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:10689 (10.6 KB) TX bytes:10689 (10.6 KB)
anil@anil-HP-15-Notebook-PC ~ $
anil@anil-HP-15-Notebook-PC ~ $ ifconfig eth0 Link encap:Ethernet HWaddr f8:a9:63:90:62:b1 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:149 errors:0 dropped:0 overruns:0 frame:0 TX packets:149 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:10689 (10.6 KB) TX bytes:10689 (10.6 KB)
anil@anil-HP-15-Notebook-PC ~ $
anil@anil-HP-15-Notebook-PC ~ $ lshw -C network WARNING: you should run this program as super-user. *-network description: Ethernet interface product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:08:00.0 logical name: eth0 version: 07 serial: f8:a9:63:90:62:b1 size: 10Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s resources: irq:57 ioport:4000(size=256) memory:b5600000-b5600fff memory:b5400000-b5403fff *-network DISABLED description: Wireless interface product: RT3290 Wireless 802.11n 1T/1R PCIe vendor: Ralink corp. physical id: 0 bus info: pci@0000:0a:00.0 logical name: wlan0 version: 00 serial: 9c:ad:97:5b:16:45 width: 32 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=rt2800pci driverversion=3.13.0-37-generic firmware=0.37 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn resources: irq:16 memory:b5510000-b551ffff WARNING: output may be incomplete or inaccurate, you should run this program as super-user. anil@anil-HP-15-Notebook-PC ~ $
anil@anil-HP-15-Notebook-PC ~ $ lshw -C Hardware Lister (lshw) - B.02.16 usage: lshw [-format] [-options ...] lshw -version
-version print program version (B.02.16)
format can be -html output hardware tree as HTML -xml output hardware tree as XML -short output hardware paths -businfo output bus information options can be -class CLASS only show a certain class of hardware -C CLASS same as '-class CLASS' -c CLASS same as '-class CLASS' -disable TEST disable a test (like pci, isapnp, cpuid, etc. ) -enable TEST enable a test (like pci, isapnp, cpuid, etc. ) -quiet don't display status -sanitize sanitize output (remove sensitive information like serial numbers, etc.) -numeric output numeric IDs (for PCI, USB, etc.)
anil@anil-HP-15-Notebook-PC ~ $
anil@anil-HP-15-Notebook-PC ~ $ rfkill list 0: phy0: Wireless LAN Soft blocked: yes Hard blocked: yes 1: hp-wifi: Wireless LAN Soft blocked: yes Hard blocked: no 2: hp-bluetooth: Bluetooth Soft blocked: yes Hard blocked: no anil@anil-HP-15-Notebook-PC ~ $
anil@anil-HP-15-Notebook-PC ~ $ lsusb Bus 001 Device 003: ID 0bda:5776 Realtek Semiconductor Corp. Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 004: ID 12d1:1505 Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard Bus 002 Device 002: ID 24ae:2000 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub anil@anil-HP-15-Notebook-PC ~ $
anil@anil-HP-15-Notebook-PC ~ $ sudo lsusb [sudo] password for anil: Bus 001 Device 003: ID 0bda:5776 Realtek Semiconductor Corp. Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 004: ID 12d1:1505 Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard Bus 002 Device 002: ID 24ae:2000 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub anil@anil-HP-15-Notebook-PC ~ $
Wth regards Anil Kumar

I have created a sql file and it will create a HTML file with query result.But I'm unable to retrieve a html body in my email instead am getting a mail body with html tags.Please help

sql----

--sample HTML report.
--
-- Usage: sqlplus LOGON @script OUTPUT_FILENAME
--

-- Activate HTML output and configure the generated markup.
SET MARKUP HTML ON SPOOL ON -
HEAD '<title>My Report</title> -
<style type="text/css"> -
table { background: #eee; font-size: 80%; } -
th { background: #ccc; } -
td { padding: 0px; } -
</style>'

-- Dump results to the file that is given on the command line.
SPOOL &1

-- Only dump to file, not to the terminal.
SET TERMOUT OFF

-- Titles and formatting of columns.
COLUMN name HEADING 'Name'
--COLUMN job HEADING 'Job Title'
--COLUMN salary HEADING 'Salary' FORMAT $99,990

-- The query
--
select tablespace_name from dba_tablespaces;
/

-- Close file, which also closes the HTML tags.
SPOOL OFF

-- Back to non-HTML output
SET MARKUP HTML OFF


mailx command----

mailx -s 'file system' c.bambarandage@prima.com.lk < sam.html

Thanks,
Charith.

Hi all,
I am brand new to Linux, playing around a bit with different things to see how I can use it in the future. Here is my problem:

I have written a simple program in Ada that works well on windows. It opens a TCP port (20000) and listens for incoming connections. I tried it on my internal network and it works well. I can connect from other windows machines and even from my Linux machine.

Now I moved the program to Linux and compiled it there. It starts ok and then listens for the connections. I can connect to it from that same Linux machine but not from any other machine on my network.

I checked the firewall status on Linux with ufw status and it is disabled. I also tried to add a rule to the iptables with
iptables -A INPUT -p tcp --dport 20000 -j ACCEPT

but still nothing. I can not connect from another machine on my network. I also tried to open a simple telnet connection from a windows machine and that too is blocked. I thought without the firewall all incoming connections would be allowed but obviously something is not working as I thought.

Any help would be greatly appreciated

I'm currently reading Brian Wards book: How Linux Works: What Every Superuser Should Know 2nd edition and I'm confused about step 3 in the context of the other steps:
1. The CPU (the actual hardware) interrupts the current process based on an internal timer, switches into kernel mode, and hands control back to the kernel.

2. The kernel records the current state of the CPU and memory, which will be essential to resuming the process that was just interrupted.

3. The kernel performs any tasks that might have come up during the preceding time slice (such as collecting data from input and output, or I/O, operations).

4. The kernel is now ready to let another process run. The kernel analyzes the list of processes that are ready to run and chooses one.

5. The kernel prepares the memory for this new process, and then prepares the CPU.

6. The kernel tells the CPU how long the time slice for the new process will last.

7. The kernel switches the CPU into user mode and hands control of the CPU to the process.

What does he mean preceding time slice as surely the tasks have been completed during the time slice in steps 1-2?

I think Im being hacked,tracked,and or blocked hiw can I know for sure?

hi guys

is it possible to build a proxy server to view sites that are blocked by your isp or country? or do the online proxy servers have special software to allow them to do this?

hi all,

am very new to linux and currently working on CentOS.

need help on which books to refer to understand the workings of the OS (detailed understanding)

stuffs like boot process, inodes etc.

appreciate any kind of help.

regards

Hi Experts:

I'm new to Linux,recently i was confused with the words as below:

"To achieve sharing,the process A mmaps the executable file of process B into into the virtual address space of process A. As the Linux loader maps the executable files into the process when executing them,the two processes share the memory image of the mapped file"

questions:
1,What are the "executable files",are they ELF files?
2,How to do "mmaps"？if process A and process B share the same code segment, ,where is process A's own code segment?


Thank you in advance.