Ubuntu :: Bash Script Not Looping As Intended?
Nov 2, 2010
I've written a bash script to connect to each machine in our local network and update the fstab file to point certain NFS mounts to a new location.The script is meant to read in a list of shares and a list of workstations, rsync the relevant share then connect to each workstation and update the fstab file before moving onto the next share.In reality what is happening is it will perform the loop correctly for the first workstation in the list but will not move on to the next one. I'm really stumped on this and I'm sure it's something simple but I just can't seem to work out the answer!
Code:
#!/bin/bash
SHARES=$1
[code]....
View 6 Replies
ADVERTISEMENT
May 27, 2011
I have a simple .bashrc backup script I've been working on, but my external hard drive needs to be plugged in for it to work. So I set up a while loop, that exits after the hard drive has been plugged in and backed up. Here it is:
Code:
#/bin/bash
pluggedin=1
[code]....
View 4 Replies
View Related
Sep 15, 2010
I am querying a single string column in a table. The string values have spaces in them. I want to loop over each value in bash. I set IFS to split lists on newlines instead of spaces. When I try this, it is splitting the list of results on the actual character 'n', not the newline ''.
DATA=`mysql -u root -ppassword --silent 'SELECT name FROM table_a;'`
IFS=$'
'
for i in $DATA; do
echo "item = $i"
[Code]....
View 5 Replies
View Related
Nov 25, 2010
I have a pc that i have upgraded Ubuntu from version 9.10 to 10.04 to 10.10. Now, in Maverick I can not get rsync to work correctly. The delete option does not work and updated files in the source do not get recreated in the destination. Can someone tell me if I'm doing something wrong:
My rsync command and output:
rsync -r -t -v --progress --delete /media/ProDrive2/source /media/destination
sending incremental file list
sent 6122 bytes received 14 bytes 12272.00 bytes/sec
total size is 55193674519 speedup is 8995057.78
Rsync process exit status: 0
View 1 Replies
View Related
Nov 4, 2010
Using: Linux server 2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 19:52:42 UTC 2010 x86_64 GNU/Linux
I have two identical 2 TB eSata external harddisks. Until recently I had them configured as a RAID-1 array. I find that resyncing takes a lot of time, reducing availability too much. Is it good idea to split the disks into 4 partitions of 500GB and use LVM to make them appear as 1 again? The idea is to reduce syncing time to 1/4-th but I might be over-designing here. How likely is it that only 1 partition would need resyncing? Is there a significant performance-penalty when combining RAID and LVM? Is there a simpler solution? How about using notify to automatically back-up essential changes?
View 11 Replies
View Related
Feb 16, 2010
I have a strange problem. Since the installation of my system, my fingerprint device has been found, but I never intended to use. Months later I wanted to try libfprint and fprintd and successfully compiled it. But when I started the fprint_demo program it said no device found. Then I typed lsusb and saw my Fingerprint device was missing.
View 3 Replies
View Related
Mar 29, 2011
a perl script that becomes active when the machine goes inactive (!) and executes an rtcwake command designed to spur the computer into action at a designated time so that cron tasks are performed. The script, which is given below and which originated at a Ubuntu forum, is not working, and so I am trying to understand it. Not being familiar with perl, I'm stuck at the line containing the test if(m/^s+boolean true/){ ...
Code:
#!/usr/bin/perl
my $cmd = "dbus-monitor --session "type='signal',interface='org.gnome.ScreenSaver', member='SessionIdleChanged'"";
while (<IN>) {
if (m/^s+boolean true/) {
[code].....
View 3 Replies
View Related
Feb 18, 2010
what should be my menu.lst entry to the 3rd drive intended for fedora to boot. for now this is what i did but didn't work.
# Other bootable partition config begins
title Fedora (on /dev/sda3)
rootnoverify (hd0,2)
kernel (hd0,2) vmlinuz PMEDIA=idehd
initrd (hd0,2) initrd.gz
# Other bootable partition config ends
View 1 Replies
View Related
May 28, 2010
I have a LAMP server that have been working allright for some time now.
I have been running 'yum update' on it every month without problem up until this morning.
Today when I try to update I get the following:
Error Downloading Packages:
1:net-snmp-libs-5.3.2.2-9.el5_5.1.i386: failure: RPMS/net-snmp-libs-5.3.2.2-9.el5_5.1.i386.rpm from updates:
[Code].....
View 19 Replies
View Related
Mar 10, 2010
I have 9.10 installed, grub has loaded and worked, now all of a sudden nothing will boot.The HP screen comes up and then the computer reboot, constant reboot cycle. Can't even get into the BIOS. It will just sit there if I hit escape. Won't boot the live cd either. What can I do??? It has worked fine for the past month now.
View 6 Replies
View Related
Jun 18, 2010
I'm trying to execute some fairly simple code to transfer some files from one server to another.
$ cat xfer_directory.sh
#!/bin/bash
cd /cygdrive/g/directory/usr
[code]....
View 1 Replies
View Related
Feb 21, 2011
how to change the value of the inputs in sed while looping
As such:
for i in `seq 1 10`; do
"do something funny, using OpenFOAM"
cd system
sed 's/oldvalue/oldValue+increment/' -i sampleDict
cd ..
done
So basically, can you for instance create a constant "a" and increase it for every loop interval and use it for sed?
View 2 Replies
View Related
Sep 1, 2010
I have a csv file (id, loc, timestamp, impressions) that I need to derive some low-level calculations from. Im ok with basic sort and grep operations, but this one is challenging my feeble scripting skills (normally I�d throw it into a spreadsheet, but in this case Id like to ultimately create a script that I could automate). Ive already used cat/sort to order the csv file first on location and then timestamp so it looks like this:
Abt001, AA, 2009-01-01 10:51:00, 231
Cup002, AA, 2009-01-01 10:54:00, 3
Saf001, AB, 2009-01-01 10:51:00, 25
[code]....
What Id like to do is output to file a record of the total, min, and max number of impressions for each location. , e.g.
AA6504 3231
AB252525
AC37925109
ZZ35512341
how to do this and Im kind of stuck on how to approach it I think the combined steps of looping through the locations along with the min/max/sum calculations are throwing me. Eventually Id also like to do additional calculations like average, ect. but I think I can figure that out on my own if I can just get this part down.
View 10 Replies
View Related
Apr 5, 2010
I've had openSUSE for a week. The update says that there are 10 updates. When I run it, first I get a flag saying that something can't be removed. Then when I run the rest of the up date, it loops back and starts over. I need a patch to fix the patch that fixes the patch that...etc.
View 8 Replies
View Related
Oct 7, 2009
I'm working on the Solaris environment and the DB i'm using is Oracle 10g. Skeleton of what I'm attempting; Write a ksh script to perform the following. I have no idea how to include my sql query within a shell script and loop through the statements. Have therefore given a jist of what I'm attempting, below.
1. Copy file to be processed (one file at a time, from a list of 10 files in the folder ).
Code:
for i in *
do
cp $i /home/temp
2 . Create a snapshot(n) table : Initialize n = 1
Code:
create table test insert account_no, balance from records_all; -- creates my snapshot table and inserts records in SQL
3. Checking if the table has been created successfully:
Code:
select count(*) from snapshot1 -- query out the number of records in the table -- always fixed, say at 400000
Code:
if( select count(*) from snapshot(n) = 400000 )
echo " table creation successful.. proceed to the next step "
else
echo " problem creating table, exiting the script .. "
4. If table creation is successful,
Code:
echo " select max(value) from results_all " -- printing the max value to console
[code]....
View 7 Replies
View Related
Oct 18, 2010
Why, after a successful (I thought) dual boot installation w/ a side-by-side lynx and meerkat install and XP does my system refuse to boot? It just gets to the Dell screen, giving boot options (none of which are making any difference) and keeps looping it. Last night, after re-installing the grub (lost after the XP install) everything was working fine. I powered down and this morning tried to restart and...this. I really don't want to have to reinstall everything and reconfigure and reinstall apps--what can I do? And more importantly, WTF did this happen to begin with?
View 1 Replies
View Related
Sep 24, 2010
I created the following.
x="top
middle
bottom"
I would like to make the following work.
while read line
do
echo $line
done
instead of importing a file I would like to use the variable $x I tried using pipes, but with no luck. My goal is to read one line at a time, but not have to export my data to another file, I would like to keep it all within one script.
View 3 Replies
View Related
Nov 3, 2010
I want to itemize addition for each type of transactions. The example below is for 3 days,10/13/2010, 10/14/2010, & 10/15/2010.
PROD =89.25+89.25+104.47= 282.97
TAX =9.37+9.37+10.37 = 29.71
ETAX = 1+1+1 = 3
[code]...
View 8 Replies
View Related
Jun 28, 2011
I have an Excel Spreadsheet which reports upon weekly performance. One portion of the worksheet looks at week over week increases /decreases. I've placed a number of image controls (15 in Total) next to cells which calculate week over week change. The image controls simply display an image depending on whether the value of the adjacent cell is positive or negative. So, here is my basic working IF statement:
Code:
Private Sub Worksheet_Change(ByVal UpDown As Range)
If Range("J26") > 0 And IsNumeric(Range("J26").Value) Then
Image1.Picture = LoadPicture("C:path oup_arrow.gif")
ElseIf Range("J26") < 0 And IsNumeric(Range("J26").Value) Then
[code]....
As you can see, this is pretty simple. What I'd like to do is find a way to loop through all 15 controls and avoid having 15 IF statements run on the Worksheet_Change() event. The cells containing the week over week values are all in the same column, but not continuous. Involved cells are: ("J26", "J27", "J33", "J34", "J35", "J36", "J37", "J38", "J39", "J40", "J42", "J43", "J44", "J45", "J46")
View 6 Replies
View Related
Jan 4, 2011
i have search for a long time regarding this matter but i couldn't found nothing.... The facts are like this:
1. I have a server on Ubuntu Linux 10.10 with the following modules installed:
- Webmin 1.530
- BIND DNS Server
- Fetchmail Retrieval
- Dovecot
- Postfix
- a domain (www.domain.com) - the website it's not hosted on my machine
What i did until now:
- establish a local mail network like user@testserver.local
- successfully installed and configure Fetchmail Retrieval. like: user@domain.com mapped to user@testserver.local
2. The problem: Sending an e-mail using a POP3 client like Outlook from an local account! If i use the local address and try to deliver a message outside my local network the following error is sent by System Administrator: Code: Your message did not reach some or all of the intended recipients.
[Code]....
View 4 Replies
View Related
Apr 4, 2009
I have many servers running CentOS 5. I noticed yesterday many had a notificationthat updates were available. I clicked update and they all fail using the GUI. WhenI run yum update it shows packages to be upgraded and asks me to confirm. I enter yes but Yum fails on the first package. I wonder if this has something to do with therelease of 5.3?I get the same failure if I run a yum upgrade too.
Total download size: 465 M
Is this ok [y/N]: y
Downloading Packages:
[code]....
View 19 Replies
View Related
Jun 5, 2011
I got a problem with terminal, since i'm really a noob with terminal i don't know how to fix it.Everytime i type in a command it shows for example:
-bash: ls: command not found
Even the basic commands don't work... just cd <directory> and those things works
View 9 Replies
View Related
Feb 4, 2011
I would like to know how do I print the line # in a script. My requirement is, I have a script which is about ~5000 lines long. If there are any errors happen I just exit. And I would like to add the line # of the script where the error happened.
View 3 Replies
View Related
Nov 29, 2010
I create a bash script that writes another bash file. But in the generated bash file I want to write a bash command in the file and not executing it.Here's my bash file:
Code:
#!/bin/bash
cat > ~/generateGridmix2data.sh << END
[code]...
View 6 Replies
View Related
Jul 17, 2010
below are the details of my system. I have bash as my current shell, some really common commands aren't working.
Do I need to do a re-installation of bash? Or how do I install a selection of bash commands which I need? (for example a subset of [URL])
Code:
root@sdptfw:~ # uname -a
Linux sdptfw.sdpt.co.za 2.4.36 #1 Tue Jul 22 13:13:24 GMT 2008 i686 i686 i386 GNU/Linux
root@sdptfw:~ # echo $SHELL$
/bin/bash$
[Code]....
View 13 Replies
View Related
Jan 24, 2010
simple bash code:
Code:
#!/bin/bash
trap "echo 'you got me'" SIGINT SIGTERM # to trap ctrl+c
echo "Press ctrl+c during 5 sec loop"
for ((i=0;i<5;i++)); do
[Code]...
How come code behaves normally and stops when ctrl+c signal is caught and resumes, but after I use at least one timeout read in the code it looks like, if signal is caught again it doesn't pause the execution but skips the loop. If you remove -t (timeout) option from the read, both loops look the same!
View 10 Replies
View Related
Nov 26, 2008
I have a config file that contains:
my.config:
Code:
Now in my bash script, I want to get the output /home/user instead of $HOME once read. So far, I have managed to get the $HOME variable but I can't get it to echo the variable. All I get is the output $HOME.
Here is my parse_cmd script:
Code:
View 3 Replies
View Related
Jul 25, 2011
I have written quite a few separate bash & scripts and php scripts that up to now I have run from cron jobs. However I have to estimate how long each takes to run, before running the next and so it probably takes much longer than necessary to run them all. They have to run in order.
Now there are so many I am thinking it would be better to have a master bash script that would run one after the other, but I am not sure how to get the master script to wait before starting to run the next script. Is this possible and is there a command that will make the script wait between bash and php scripts , for them to finish, before running the next?
View 5 Replies
View Related
Jan 13, 2011
I have searched and searched and maybe I don't know how to articulate this issue with out just posting the problem I'm having. Every time I bring up a terminal window I get the following "Header"
declare -x COLORTERM="gnome-terminal"
declare -x CPLUS_INCLUDE_PATH="/usr/lib64/qt/include"
declare -x DBUS_SESSION_BUS_ADDRESS="unix:abstract=/tmp/dbus-xSFd6zqrYQ,guid=dc5e07974559da016842742900000090"
declare -x DISPLAY=":0.0"
[Code]...
To be honest I cheated and used the .bashrc / .profile files from Ubuntu and all was working fine for a while now and it seems something changed to cause this... any ideas on why I am getting this? I checked my .bashrc and my /etc/profile and it doesn't look like anything is amiss..
View 3 Replies
View Related
Jan 9, 2010
I would like to get the filename (without extension) and the extension separately. The best solution I found so far is:
Let FILE="thefilenameofsomefilesfor_instance.txt"
Code:
NAME=`echo "$FILE" | cut -d'.' -f1`
EXTENSION=`echo "$FILE" | cut -d'.' -f2`
I think it would be better to count the len and remove 3 chars to right to get the extension, but it can be macintosh filenames with have 4 chars for extensions.
View 5 Replies
View Related
