I am trying compile a daily task that requires numerous steps all into one bash script to make life easier..My problem is that as part of this wrapper scripti have to call another script that is menu based and requires input from the user.Below is the menu
1) Start x Process
2) Start y Process
3) Start z Process
code]...
I want to select the branch based on the INPUT. Here is the program segment which uses the case statement.
case $INPUT in
1)branch="Computer Science";;
2)branch ="Electrical";;
3)branch = "Mechanical";;
4)branch= "Aerospace";;
esac
When I run this script, I am getting an error, Electrical command not found?
I'm trying to call a specific variable based on a user selection. For example:
Code: Select a file:
[1] foo.tar
[2] bar.tar
Enter a selection: I have already coded each possible selection to have its own variable. If the user selects 2 I need to select $SELECTED_TAR2, or if they select 1 I need to select $SELECTED_TAR1 and then do something like this behind the scenes:
Code: cp /home/user/$SELECTED_TAR2 /home/user/backup/$SELECTED_TAR2
I was thinking something like this:
Code: echo "Enter a selection: "
read -e SELECTED_NUMBER
cp /home/user/$SELECTED_TAR$SELECTED_NUMBER /home/user/backup
[code]....
I'm building a Linux From Scratch system and partially automating it. I will likely want to do it again, and I would like to try to almost completely automate it.
My current approach is a script that takes an input file and sequentially runs each line in a new instance of bash. If one fails, it gives me the number of the step that failed so that I can use the "--step" option to resume after I fixed the issue.
This has some problems:
A varible created on one line will not be accessible on the next line. This is because each line is run in a separate shell (the reason for this is so that the commands in the input file and the script's internal variables can't interfere). You can't switch users or use chroot, again because each line is run in a separate shell.
What would be nice is to be able to start a bash process in the background and send commands to its stdin. I guess that a named pipe would work, but the named pipe will be gone after a chroot. Is there a way to do it without relying on the filesystem? Also, how do I know if the command failed?
Is it possible to create a text based menu layout in bash were it is possible to browse through. The menu list should look something like this:
----------------------------------------
user: root
colour: blue
number: 4
animal: dog
----------------------------------------
At the start the cursor should blink at the r from root so that text can be entered. When pressing the enter the cursor should go to the b from blue and so on. the imported thing is that all the text is visible also beyond the position from the cursor.
I am splitting a file based on the values read from an input file. The below one is the script.
1)How do I add the header which is present in the original file to the new split files created?(For eg. pharmacyf conatins header as table column names. The new files created (ODS.POS.$pharmacyid.$tablename.$CURRENT_DATE.dat) are without the header).
2) Also the script is creating 0 byte files for the pharmacyids which are not available in the intial file? Can this be avoided?
for pharmacyf in *
do
tablename=`echo $pharmacyf |cut -f4 -d'.' `
while read pharmacyid
do
grep -w $pharmacyid $pharmacyf >> $OUT/ODS.POS.$pharmacyid.$tablename.$CURRENT_DATE.dat
done< inputfile
done
I have a pair of interfaces bringing in traffic from multiple vlans each. I need to route or forward traffic to and output interface based on the physical interface and source IP address in the packet.I have multiple ip rules to send traffic to custom routing tables and each of those custom tables had a default route out the appropriate interface, but traffic isn't flowing. Afterwards I tried using iptables and put an ACCEPT any statement in every chain of every table. What am I missing, ebtables maybe??
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1. Get the MBR off the original drive and write it unto the new drive (all via dd), but that did not work at all: the machine hangs right away during boot up. It seems to hang right at the point where the BIOS tries to read the MBR.
Code:
On original drive:
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On new drive (new drive is now in place of original drive):
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Code:
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# grub-install --root-directory=/boot hd0
reboot and remove FEDORA CD Using the 2nd option above, I get the GRUB> prompt during bootup. I can then boot into the system by issuing the commands that are in the menu.lst file, followed by the "boot" command. However, I would like for those commands to happen automatically, just like in the original configuration. It seems to me that GRUB is actually finding all its stage files because I doubt the GRUB program (the one displaying the prompt) fits entirely in the 446 bytes it has on the MBR. So, it must be loading its stage 2 (and stage 1.5??) files from my /boot partition. However, if GRUB is loading its stage files off the boot partition, why does it not load/read the menu.lst/grub.conf contained in the boot partition also?
Code:
# ls -l /boot
total 22888
-rw-r--r--. 1 root root 1274567 2009-05-27 16:39 System.map-2.6.29.4-167.fc11.i686.PAE
-rw-r--r-- 1 root root 1274538 2009-06-16 22:27 System.map-2.6.29.5-191.fc11.i686.PAE
[code]....
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[code]....
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I am new to shell scripting.What i am trying is to write a shell script which take the input file and output should like as mentioned below.Output file should have data till SOK (marked in red)from every second line and then the selected data(marked in green) from 4th line.So selected data from 2nd and 4th line in one line of O/P file and then similarly selected data from 6th and 8th line in second line of O/P file.Input File:
3c3
< c1111;11.11.11.11;pOK;SOK:abcde;Universe:aa
---
[code]...
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[code]....
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