I've several questions to ask: Why do some files have black arrows pointed outward in my file system? Why are some files in compressed form, e.g. initrd.img?? How are such files used by the system??
View 2 RepliesWe have designed a board with Cirrus Logic(arm) processor, A Flash memory and some other peripherals have been connected to that. While building kernel we have selected MMU support. We have written few custom drivers for keypad,LED,LCD. But I would like to know how virtual memory mechanism can be helpful here even though there is no any hard disk has been connected. Where will be the virtual memory reside.
View 2 Replies View RelatedI am using Red Hat Linux 4 .There are some few questions in my mind related to umask. I want to know that is the default file and directory permissions ?
- When we use umask (022) command in terminal. and create a new file then the permissions applied for new file is for that session and when the system will reboot linux will take automatically its default permission from etc/bashrc or /etc/profile ?
- Can we make our own umask or the professional way is to follow 022 only ?
- What is the benefit of umask in Linux?
I used the following command
Code:
file /usr/bin/mawk
Output is
[code]...
What is a pipe? and why a file is a named pipe? I am just learning linux.
View 2 Replies View Related# Filename: makefile2
# Usage: make-f makefile2
# Description: Maintains all the dependencies between modules using the
# Agenda1.
CC=g++
CFLAGS=-c -Wall
LDFLAGS=
SOURCE_MODULES=main.cpp factorial.cpp hello.cpp
OBJECT_MODULES=$(SOURCE_MODULES:.cpp=.o)
EXECUTABLE=programa1
all: $(OBJECT_MODULES) $(EXECUTABLE)
$(EXECUTABLE): $(OBJECT_MODULES)
$(CC) $(LDFLAGS) $^ -o $@
.o: .cpp
$(CC) $(CFLAGS) $< -o $@
I am suppose to explain the dependencies that exist and each of the following lines of makefile. Lists orders to be executed as a result of running the make utility on it.
a lot of log file store in location /var/log/ but how to understand what the meaning in side the log file recorded down? how to find out the problem from the log file?
View 2 Replies View Relatedi'm using ubuntu10.10 maverick.im programming in systemc..i dunno how to compile and run my program (*.cpp). where should i save my program and where to create makefile???what is this makefile and how should i create it..got completely no idea and i'm new to ubuntu..so please someone explain clearly the concept.
View 1 Replies View RelatedHow to analyse the IT and Traffic file generated in CRCN simulation? What they represent i.e what is the format?
View 7 Replies View RelatedI can't remember what "ISO" means. I've been busy with other projects, and I forget what release of Ubuntu I'm using. The computer I use the most is running Windoze 7, and I have Ubuntu running on two other machines but use them infrequently.
View 4 Replies View RelatedCan't find info on how to move my hundreds of Camino bookmarks from a Mac G5 power-pc OSx Leopard to Ubuntu setup onto an older AMD PC. Camino doesn't appear to have a Linux version at least that I can find. If it does have one I would prefer Camino. Probably not so is it preferable in any way discernable, to the Firefox that I'm using now (doesn't look like it to me)?
Secondly, the vertical arrows for paging up and down on the screen - can't seem to find the preference that puts them together at the bottom instead of up arrow at the top and down arrow at the bottom.
I have seen the following command:
$ kill %1
What is the usage of this statement?
I am here looking for some abstract and easy to understand resource for "Exokerel" CONCEPT of Computer Operating Systems.[URL] seems some what more complex then expected [URL]
View 1 Replies View RelatedIn shell scripting, what do or what does this symbol do or mean ? "."(octet), ";" (semicolon)? Would really like to know? Cause I saw a written script if [ -f /etc/file ];then. . /etc/file. Wondering, the "." is meant to be source, so is "." the same thing as "source" ?
View 2 Replies View RelatedKernel 2.6.21.5, Slackware 12.0top: procps 3.2.7Hi:Running top, I read, in the summary area,
Code:
root@darkstar:~# top
........
[code]....
I am trying to see if a module that i loaded on Redhat succeeds.The module is from intel called vtune_drv-x32_64-2.6.18-194.el5smp.ko.When I run the script during the installation process, it shows that it is successful.Is the "0" at the end of line meaning that the module is not successfully loaded?
View 2 Replies View RelatedI may not have noticed in other Fed releases, but in Fed 13 I am seeing a dot at the end of all file permissions. Example:
[pjs@linux ~]$ ls -ld Documents
drwxr-xr-x. 62 pjs pjs 4096 Jul 11 09:53 Documents
Even on files I create myself:
[pjs@linux ~]$ touch foo
[pjs@linux ~]$ ls -l foo
-rw-rw-r--. 1 pjs pjs 0 Jul 11 10:46 foo
It is the same throughout the fs. I have disabled as much of SELinux as I can. What does the dot mean?
I'm using openSUSE 11.3. In the Yast2's module: Software Management, in the search tab, there is a column called: "Installed (Available)", It usually shows the current installed version of the package, but sometimes its blue, red or most of the times black. What does the color mean?
View 1 Replies View RelatedI have been searching for some time for a font that can be used to put together letters and words for examples to get children learn how to write. I need letters with and without arrows pointing in the direction of how to write the letter. This font will be used for creating worksheets for letters and words. I need to be also able to change the colour of the font to really light gray so that children can also trace the letters.
I found alot of commercial software but was looking something thats free and can be used by a tuition company/tutor to print materials for their students without any license restrictions. In a worst case I can blow up individual letters in open office and manually draw the arrows but would be great if a font exists that can be used as would give great scope in future projects.
I am Student of RHCE. I have only one machine at my home. to do practice I want Server - Client environment. So Can i use visualization concept? If yes How?
View 3 Replies View RelatedI'm a little bit confused with partitioning the filesystem in Linux. the difference between creating the file system with fdisk and mkfs (when formatting the disk). I can't clearly tell my problem, so please look at this picture:
View 2 Replies View RelatedFor as long as i can remember, using arrows (and home/end) in a bash shell that has a command running would print some fancy ^[[A caracters and then return the prompt at the end of this.
Now this behavior has changed. Using the arrows while a command is running actually moves the cursor on the screen. When the command completes the prompt appears at the new cursor position which is kind of strange and messes the screen.
For testing, just enter "sleep 10" and during the wait move the cursor with the arrows and home/end.
How can i get back the original behavior?
> rpm -q bash
bash-4.1.7-1.fc13.x86_64
i have generated .exe file from C file (ie filename.c ) after compiling in linux machine with -O option. I wish to know about how to run that .exe file when linux system starts up ?
View 3 Replies View RelatedI need to add arrows, text, geometric shapes, etc. to graphical charts. Gimp doesn't have any way to easily add arrows (that I know of) -it's way sophisticated compared to what I need.Back in the MS Windows world I used to use Snagit Studio. I could probably run that in Wine but I'd prefer something native.
View 3 Replies View Relatedi've switched over from windows7 and a feature that i really miss is to be able to use the Key Combination of Win(Super)+Arrow Keys to move the windows about.iE if i did super+Left the window would move to the left side of the screen and super+up maximized it.im pretty sure that there is some way to mimic this in ubuntu.
View 2 Replies View Relatedneed help with the Positional Parameters. I don't understand its concept.If you could give some example or and explanation
View 2 Replies View RelatedNow that I have setup a proxy server, as a next step I want to run it in fail-over high availability mode, so that if one proxy is down due to any reason, second proxy should automatically be up and start serving requests.
View 3 Replies View RelatedI'm running Debian Squeeze, and I have a gnome theme called "Moomex" installed. I have had it for a while and it has worked fine, until it suddenly stopped displaying menu scroll arrows (like for long bookmark menus in web browsers). I can still scroll, but in place of the arrows is a solid colored rectangle that clashes with my theme. I went searching and found my theme's arrow image files (see code below). I have no idea how these files are implemented into the theme display, so I don't know how to re-enable them. I tried reinstalling the theme, but it changed nothing. These arrows show up just fine in any other stock theme, and they were fine in this one too until they randomly disappeared.
View 3 Replies View RelatedSo 2 days ago everything was all fine on my machine. Has been for about a month, but all of a sudden as of yesterday I have no sound, I am seeing IRQ interupts on boot, During boot I am seeing file system is not clean, , and swap space is being used for the first time while doing normal task, etc. These are 2 new hard drives in RAID 1 with ReiserFS. I should have used a newer FS but thats a whole other argument.
Anyways here we go.
The system is Debian Lenny amd64
Physical RAM 4GB + 6GB swap
/var/log/messages
Code:
Feb 21 07:35:09 Sarah kernel: imklog 3.18.6, log source = /proc/kmsg started.
Feb 21 07:35:09 Sarah rsyslogd: [origin software="rsyslogd" swVersion="3.18.6" x-pid="3994" x-info="http://www.rsyslog.com"] restart
code....
I am getting occasional errors during the boot process.One at the beginning and one or two when I switch to single user mode.I 'd like to run the system file checker to fix any possible errors.But when I run fsck in the terminal I get the message:Code:
mansour@ubuntu-notebook:~$ fsck
fsck from util-linux-ng 2.17.2
e2fsck 1.41.12 (17-May-2010)
[code]...