General :: Unable To Get External Variables In Awk
May 25, 2010
In the following lines I am trying to replace Puppy Linux 5.0 Released with the content of external variable Var. Following lines are in a file called news
Code:
<A title="Puppy Linux 5.0 Released" href="http://lwn.net/Articles/388754/" rel=bookmark><FONT color=#ffffff size=2><STRONG>Puppy Linux 5.0 Released
</STRONG></A><STRONG> | </STRONG>
We have a STM32F103ZET6 microcontroller.It has an ARM cortex-M3 core.We use keil as compiler.We have both an external and internal SRAM.Now I want to declare variables in either of the RAM as I wish.For example some time critical section variables in internal and others in external.How to do this.?
I installed debian 8 on a usb drive using this guide. I used a debian 8.2 64-bit image with mate. It has all worked as I wanted it to. However recently I needed to change the PATH variable, and create another environment variable. I have not been able to do neither. What I have tryed (from google):
1. adding "export PATH=$PATH:/xxxx/" to etc/profile or to /home/user/.profile 2. adding ":/xxxx/" to a point in /etc/profile where the PATH variable is set 3. creating a script in /etc/profile.d which run "export PATH=$PATH:/xxxx/"
I've never done much scripting myself and I'm quite unused to the bash as well, but anyway, Here's my problem.
I've a script which is supposed to set some environment variables, using export. However, if I check those variables using echo, they appear not to be set (they are empty). If I set the same variables manually, everything is fine, of course, but I don't want to set them each time manually.
I am unable to mount an external in my linux os.I tried everithing,but not succeed.Linux os ver: RHEL 4(nahant update 5)Problem description: when I insert an external,autometically the icon will show at 'my computer'.But when I tried to open the device,the message will show that "device is already mounted or busy" I checked that one entry is autometically done in fstab after inserting the external.But "mount" command does not show it. I tried every possible command to mannually mount,but no effect.This problem is occure in only one server,but there is no such problem in other servers running same configuration.
mkvmerge -o <filename without extension>_TV.mkv -S <filename> && mkvextract tracks <filename> 3:<filename without extension>.*** && perl /home/brian/Desktop/ass2srt.pl <filename without extension>.*** && rm <filename without extension>.***
Doing these commands for multiple command line file inputs is the goal. So I can just type ./script.sh *.mkv in my terminal.This is what I have so far, but it doesn't work whatsoever.
I'm trying to get an external HD to mount on my Dell Laptop running OpenSuse 11.1. When I connect I get the following:
Quote:
dmesg:
usb 1-5: new high speed USB device using ehci_hcd and address 4 usb 1-5: configuration #1 chosen from 1 choice scsi3 : SCSI emulation for USB Mass Storage devices usb 1-5: New USB device found, idVendor=0bc2, idProduct=0503 usb 1-5: New USB device strings: Mfr=54, Product=69, SerialNumber=95
[code].....
But am left scratching my head. I don't think its showing up in the etc/mtab - which i think it is supposed to?
I have just had to reinstall my OS (Sabayon) onto a new and larger hard drive (dying old disk). I quickly saved all my old docs in /home on an external USB drive (formatted and then created an ext4 file system) before the swap and installation.
After getting the new disk running I connected the USB external disk. First I could not access the drive at all, but that seems to be fixed. Now I want to bring all my files back to my new /home folder but apparently they (especially the former MS Office .doc, .xls, etc files, not so much the OpenOffice files) are �read only� and I don't have permissions anymore. I am able to create directories on the external, and can move files back and forth, but don't seem to own many of them.Sabayon automatically mounted my external disk in /media/disk, rather than /mnt, so I've left that alone for now. After searching here and elsewhere for info, I tried a few things (below): For access I added a line to /etc/fstab:
Code:
/dev/sdb1 /media/disk ext4 noauto,rw 0 0
Here's what I've done to try and fix ownership already:
in /media I:
Code:
# chmod 775 disk
which gives output of:
Code:
media # ls -l total 4 drwxrwxr-x 2 root root 4096 Nov 1 21:30 disk
[code]....
I'm not sure what the �total 4� refers to since there is only the one directory �disk� inside /media but I assume that's not part of this issue... Does adding umask=0 have anything to do with this, and if so where does that go?
Evince in non-gnome systems is unable to open external link. The error msg it shows is
Code:
Unable to open external link The specified location is not supported. I have already googled it, however it only says it is a bug, without any solution available. Evince in gnome systems however work just fine. Is there any way evince can use sensible-browser to open external links?
I have an external hard drive with an xfs partition on it. It was using an external journal, but in re-installing Slackware I removed the partition holding the external journal, forgetting what it was at the time. I didn't touch the contents of the external hard drive, but now I can't mount it and the various xfs programs seem to demand that it be mounted in order for them to change anything.Anyone have any ideas on how to change an xfs partition from external log to internal? Failing that, how do I get the information off it?
I plugged in my external dvd-r (asus) via usb. It showed me some message on shell, that it has detected the cdrom(although its dvd rom as well but nevermind) and its of ASUS. But how do i know which dev it was associated with in /dev/? Since i had to test something, i plugged it out, and save the output of ls /dev/ > ~/result.txt
after plugging the dvd-rom, i compared the results and was able to find that it was associated with simple cdrom i.e. /dev/cdrom. I wanted to know that is there any command that will tell me which /dev/ file was associated with external dvdrom? i tried to see in the following result
1) df -h ( no results, just the already mounted partitions) 2) fdisk -l ( same as above) 3) dmesg | tail (shown almost the same result as was shown on shell at the time of plugging the dvd)
I am running Red Hat Linux Enterprise 5; I am always using the export command to set environment variables.Are there any other ways to set environment variables and what are the advantages/disadvantages of them?
I have installed RDGEN which comes with VPFIT package. When I run the program it says: "Failed to find help file" But I ran the program from its main directory where all the files including help files exist. I think maybe the problem is because of this that THEY say: "Some environment variables should be set before starting RDGEN". But I do not know what does this mean and how to do that.
These are the variables: -ATOMDIR -RD PRSETUP -RD PRSETUP -RDSTART -VPFSETUP -VPFPLOTS Would it be possible for you to tell me what does Setting Variable means in this case?
he $g09root is picked up ( in both the csh and the bash), but not the $GV_DIR or the $GAUSS_SCRDIR. I guess it's some stupid error, but it is highly frustrating.Here is the .profile file:Quote:
# To make use of this feature, simply uncomment one of the lines below or # add your own one (see /usr/share/locale/locale.alias for more codes) #
Is there a command that can list the variables that I am using in a script? I mean the variables that I created in the script not the environment or local variables. For example if I have a script that has the following var's like : name=Alex, age=20, postal_code=12345, how can I list them all @ once WITHOUT using echo $name, $age and so on. Imagine I have a lot of variables and i can't echo them all.
I am trying to rename a list of variables in my script using a second list of variables. I want the variables in the second list to replace the variables in the first list such that the first variable in List 1 is renamed after the first variable in List 2, the second variable in List 1 is renamed after the second variable in List 2, the third variable in List 1 is renamed after the third variable in List 2, and so on.
For example:
I know how to rename each file individually, but would like to run Do Loop which can rename all my output files at once.
I set a variable before entering the FTP session (vDate). Then it does not seem to resolve when I try to use it in the session as part of an mput command. $vDate resolves as an empty value. Can you point me in the right direction?
Is there a way I can write a file that contains the text which assigns variables, e.g. string="hello world" in a file say, variables.txt and have a shell script assign those variables locally e.g.
#!bin/bash command_that_saves_variables_locally variables.txt echo $string and when I run the script I would get an output of "hello world"
Ive created some custom shell scripts to run during the kernels boot process (they are called from the init script).I was wondering if there's any way to assign a variable that can be accessed between different scripts.For example my first script checks which type of pc i am installing on and assigns the hard drive location to a variable.HARDDRIVE = "/dev/sda1"at the end of the script it calls another script. In this script I cant reference HARDDRIVE as it is blank, to get around this I need to repeat the same code for assigning it.Its more of a space/aesthetics issue but I figured someone might know the solution off the top of their head
I know many people have asked about environment variables before, but I am having a hard time dealing with these paths while ensuring I don't mess around with the original settings. How would you go about executing these commands in Ubuntu in terms of environment variables?
put /home/stanley/Downloads/ns-allinone-2.34/bin:/home/stanley/Downloads ns-allinone-2.34/tcl8.4.18/unix:/home/stanley/Downloads/ns-allinone-2.34/tk8.4.18/unixinto your PATH environment; so that you'll be able to run itm/tclsh wish/xgraph.
IMPORTANT NOTICES:
(1) You MUST put /home/stanley/Downloads/ns-allinone-2.34/otcl-1.13, /home/stanley/Downloads/ns-allinone-2.34/lib, into your LD_LIBRARY_PATH environment variable.
I am running an application which requires setting environment variables to be set.At the moment, the way I am achieving this is by exporting the EV at the command line, and then running the app from the command line.I want to be able to run the app from my menu (it is already a menu item after I installed it).How may I set the env var so that it is always available, so I can just run the app from the menu instead of from the CLI?
I have $db and $DATE set in my bash script, then I need to join them like this: mysqldump --user=usr --password=pss --databases $db | gzip > /backups/sqlNew/$db_$DATE.sql.gz;
Unfortunately, that doesn't work. How do I properly join those 2 variables into a filename?
cwrsync is a great tool for synching "My Documents" to a network drive in Windows. However it uses a portion of cygwin to do this which uses forward slashes instead of back slashes. So, a manually typed command like the following works great: rsync -r --delete --exclude "My Pictures" "/cygdrive/c/Documents and Settings/demo/My Documents/" /cygdrive/j
However, you cannot put a variable like %userprofile% in this as it comes out like this (and is unrecognized): rsync: change_dir "/cygdrive/C:Documents and Settingsdemo/My Documents" failed: No such file or directory (2)
I'm trying to clean up some files and I've been using the rename command as its the easiest way I've found to do it. One problem I've found is that on a couple of batches of files they have a set random numbers on them which I need to remove.
Only problem is I can't find a way for rename to "lock" onto those numbers to remove them. The file name structure is something like this:
file name[random numbers].extension
There are brackets around the numbers as well which I'm not sure will help or not.
