0
votes
1answer
41 views

Passing variables in kickstart

I have a kickstart file that takes a hostname in the %pre section. I cannot seem to figure out how to get it two the first. As you see it sends the server information to another device which then ...
0
votes
1answer
78 views

ways to automatically fix line endings in shell scripts or files who break with ^M

Problem We regularly break our files lines endings and things stop working without us noticing. Bash complains about "invalid option" or ": command not found" as described here: ...
1
vote
1answer
53 views

Replacing LineFeed \x0a with SED

I have to delete lots of Linefeeds (Hex \x0a) in a logfile. I just have sed to solve the problem. It is a bit complicated I know.. Do you have idea how to solve the problem? Here is an example ...
0
votes
3answers
105 views

Exclude with the find command [duplicate]

I need some help getting the find command to work right in a script working on. I need to be able to exclude some directories. Below I have what I'm doing as a work around. sudo find / ( -name ...
0
votes
2answers
112 views

Script for search string inside the file for every one hour

I need to write a script where the particular string(alphanumeric) should be searched inside the file with every hour for whole day. And the search should not contain the previous hour results. Time ...
0
votes
2answers
67 views

redirect command executed along with output shell

I would like to redirect the command executed along with the output to a file. for example: #ls >ls_out.txt ls_out.txt should be something like : ls file1 fil2 Thanks!
1
vote
0answers
72 views

error in killing tshark from shell script

I'm getting this error "* glibc detected * /usr/sbin/tshark: double free or corruption " while doing this, any idea why? #!/bin/bash trap 'my_exit; exit' SIGINT SIGQUIT count=0 /usr/sbin/tshark -i ...
1
vote
2answers
175 views

Adding sleep / delay between iptables blocks in shell script

On one server, we're trying to block any access for the country China. We wish to implement this with iptables rather than via .htaccess. The problem we're experiencing though, is that when adding ...
1
vote
3answers
549 views

scp stuck when trying to copy files from Linux to windows

I use the following scp syntax in order to transfer allot of files from Linux red-hat 5 to windows machine ( under Temp directory ), Remarks: SSH server already installed on windows machine I use ...
3
votes
4answers
254 views

Bash one-liner that shows a running countdown until a DNS update (TTL expiration)

I find myself frequently tasked with updating DNS records and needing to know exactly when the refresh will begin (a.k.a TTL expiration). I came up with this bash one-liner that gives me the output I ...
2
votes
1answer
72 views

Hold till last command completes its execution

I am developing a shell script which actually stops aws running instances in a particular region & start them again as a part of schedule maintenance. but as ec2-api tools are heavy, takes time to ...
-1
votes
2answers
623 views

Shell script :: Reading a column from file & store it in array [closed]

I am working on shell script where i want to store O/P of the command in array. I have a file containing rows & columns from where i want to extract 3rd column & store all values in a array. ...
1
vote
1answer
189 views

Automatic provisioning of Windows server from a Linux client.

Our company builds a server-based C++ application, which can be installed by a Windows installer. I would like to be able to remotely log into a brand new Windows server, and install that C++ ...
1
vote
1answer
77 views

nice command - are other commands executed with script also niced?

A quick question about how nice works. Say if I have a script that runs in the crontab like so 0 4 * * * nice -n 19 /usr/local/admin/script.pl It is set to the lowest priority. This script will ...
0
votes
2answers
135 views

linux + how to identify if file is pointed by link/s

I create new file called - 192.9.200.1 touch 192.9.200.1 then I create new link that will be pointed to 192.9.200.1 file ln -s 192.9.200.1 file so finally I get: ls -ltr /tmp ...
0
votes
3answers
530 views

Connect to cisco switch using shell script

I would like to run a daily script the cleans my switch arp. I enabled SSH on my switch. how do I connect to the switch using a simple shell script? I'm not sure how to provide the SSH password and ...
0
votes
2answers
96 views

linux + delete duplicate IP's from file

what the best way to remove duplicate IP's from file I use the command: sort file | uniq but I am not sure if this is the best way , maybe I missed something? remark: my file contain two ...
1
vote
2answers
72 views

What is this specific shell script statement validating?

I'm not a good Shell Script expert. Can somebody help me to understand and explain the statement [ ! -z ${TRUE:-} ] && [ ${TRUE:-} == 'true' ] &&from the following snippet. What is ...
0
votes
1answer
210 views

Bash: php comand not found when called from a script run with sudo

I have this weird problem. The php command is not found in one specific sitiation. I try to call the command in three different ways. Only one of them fails: Being user john I create a simple ...
1
vote
2answers
136 views

re-create new link and remove the old link on one command

according to ln manual page: man ln -f, --force remove existing destination files so as I understand if I want to re-create new link to some destination directory/file I can ...
-2
votes
1answer
96 views

case + how to implement equal or less or greater in case syntax

my target is to verify the range of number with (only with - case + esac ) , and print the range so for example if number is between 0-80 , case will print >=0<=80 or if range is ...
-1
votes
1answer
69 views

running script containing sudo in cron [duplicate]

#!/bin/bash value=$(<man.txt) echo "$value" if [ "$value" == "true" ]; then echo "startedif_manthan" ps -ef|grep sym |awk '{ print $2 }'|sudo xargs kill -9; sleep 30; sudo sh ...
-1
votes
3answers
70 views

Cannot start a script

#!/bin/bash value=$(<man.txt) echo "$value" if [ "$value" == "true" ]; then echo "startedif_manthan" ps -ef|grep sym |awk '{ print $2 }'|sudo xargs kill -9; sleep 30; sudo sh ...
-1
votes
1answer
41 views

Different behavior from ubuntu server and ubuntu client on windows [closed]

#!/bin/bash # Reading cat /home/radiare/Desktop/first.txt | while read LINE do if [ "$LINE" == "false" ]; then echo "Inside first loop" break fi done cat /home/radiare/Desktop/second.txt | while ...
-3
votes
2answers
78 views

perl one liners + add empty line after the last line [closed]

please advice what need to change in the perl syntax in order to add new empty line after the last line? example IP_INFO=12.23.2.1 echo IP= | perl -pe "s/$/$IP_INFO/" 1>>file . ...
1
vote
4answers
69 views

Howto: command/tool ability check

When developing a shell script that should run on various unix/linux derivates, i sometimes have the problem that some tools have to be called in a different way compared to other systems. For example ...
10
votes
4answers
18k views

How do I sleep for a millisecond in bash or ksh

sleep is a very popular command and we can start sleep from 1 second # wait one second please sleep 1 but what the alternative if I need to wait only 0.1 second or between 0.1 to 1 ...
0
votes
2answers
159 views

Issues in Play framework Server when I start using su deploy -c “play start”

I have play framework server and Im doing Automation using Hudson, When I start the play server using su deploy -c "play start" it's fine the logs are getting updated and server is started. The same ...
-1
votes
2answers
184 views

shell: create Shortcut command (alias or function) for working with IP address as arguments

I am not sure if I performed the following illegal or true but what I need is - to create set of ready commands so if I need to use , for example to match IP address with 4 octet I can use the ...
-2
votes
1answer
115 views

linux + count how many digits in IP address [closed]

I write the following syntax (exist in my ksh script) in order to find how many digits I have in IP address IP_address=127.1.1.1 echo $IP_address | sed s'/\./ /g' | wc | awk '{print $2}' 4 . ...
-1
votes
4answers
132 views

Shell script for loop is behaving unexpected [closed]

Shell script for loop is behaving unexpected ! The requirement is need to iterate the loop line by line of the property file. Its mandatory to use the for loop. hostnamefl=/tmp/propperty.txt for ...
0
votes
2answers
108 views

Oracle Golden gate version using shell scrip

I am trying to grep the Oracle golden gate from a remote machine, But along with version it is giving some error details also, How do I resolve it ? user@serverhost:/dbei > echo <golgengate ...
0
votes
3answers
187 views

grep + Regular Expressions to match uniq number

My target is to verify if $FILE is a backup file ( backup file ended with xxxx.xx.xx.xx number Example of backup files ls /etc/VRTSvcs/conf/config main.cf.17Dec2012.09.10.14 ...
-1
votes
2answers
822 views

Configure the UPS apcupsd demon to run a script?

I have a ups connected to a Linux server with a usb cable, i installed apcupsd demon and i was wondering how to instruct it to run a shell script i created when a special condition occurs? i.e. the ...
0
votes
1answer
88 views

Linux/Solaris verification ( after hostname change ) in files according to hostname rule

According to the following Perl command ( this command part of ksh script ) I can replaced old hostnames with new hostnames in Linux or Solaris previos_machine_name=linux1a ...
0
votes
2answers
837 views

linux\solaris + print specific date format from file

subject - print file date on solaris as format: yymmdd ( yy - year , mm - month , dd - day ) on Linux machine I type the following command in order to get: file date as the following: ls -l ...
0
votes
2answers
130 views

linux/solaris + how to verify OS (linux / solaris ) creation date

Please advice – how to verify OS (linux / solaris ) installation creation date which file/packages/other – can be good indication when the operation system was created/installed ? For example I ...
1
vote
3answers
434 views

linux/solaris kill many proccess with one command

Is it possible to kill all find process with one command? I do not want to kill each process as kill -9 25295 , kill -9 11994 , etc.. Rather, what I want is a simple way or command that kill all find ...
0
votes
1answer
187 views

perl + sed + remove lines that start with “#”

please advice I have linux and solaris machines, and I need command that work on both OS I use the following perl line in order to remove all lines that start with "#" why perl command not work , ...
2
votes
2answers
972 views

How can I kill and wait for background processes to finish in a shell script when I Ctrl+C it?

I'm trying to set up a shell script so that it runs background processes, and when I ctrl+C the shell script, it kills the children, then exits. The best that I've managed to come up with is this. It ...
0
votes
2answers
450 views

Root crontab not executing script

I have a script listed in my roots crontab 07 9 * * * /opt/HLRSDATA_2010_OCT/HLRS_Scheduler_sp.sh > /opt/HLRSDATA_2010_OCT/logs/HLRTKJob.log This script contains the following #!/bin/bash echo ...
1
vote
2answers
115 views

ksh + match and verify two strings in single line

how to match the words linux1a and linux1b from single line ? ( should be performed by ksh ) list="solaris1a Auto global linux1a linux1b" echo $list | .... ? my target is to find ...
0
votes
1answer
271 views

SFTP download the files and then i wanted rename the server files how to do this?

I have to setup with the banking interface where I need to connect to the remote bank and then download the files in the bank server in-box to my local server for further processing so i do following ...
1
vote
1answer
69 views

tar + tar not open all files

When I want to view the following tar file , then tar show the following three files from /var/tmp tar tvf fix.tar install.sh /usr/cti/apps/swp/dir/script1.sh ...
1
vote
2answers
180 views

Different behaviour of script locally and over ssh

I have a script on a server-A Script-A #!/bin/bash -l echo "script-A.sh" | change-environment.sh When I ssh onto server-A and execute it, it works fine. However, when I ssh user@server-A ...
1
vote
1answer
104 views

The plugin of munin is always timed out

I want to use munin to make a graph of ttyACM0 in Linux, but munin can not create the graph. I found some information in "munin-node.log". it shows that "Service 'temperature' timed out". So I changed ...
0
votes
3answers
229 views

Files copying between servers by creation time

My bash scripting knowledge is very weak that's why I'm asking help here. What is the most effective bash script according to performance to find and copy files from one LINUX server to another using ...
1
vote
1answer
231 views

Configure Postgres on Server A to pg_restore onto Server B (requiring certificate authentication)

I'm trying to configure a PostgreSQL instance running on SERVER_A to connect to another PostgreSQL instance on SERVER_B. I'm running a shell script on SERVER_A that ultimately needs to connect and ...
-1
votes
1answer
309 views

linux + print message on the screen after login to linux machine

I have linux machine red-hat 5.1 I want to write ksh/bash script that perform the following Each time that someone login to the linux machine then he will get the following message on the screen ...
1
vote
1answer
339 views

Can't restart mysql from cron job

I have a problem where MySQL (running on Ubuntu 12.04 with all latest updates) dies after a few days so put this script into a cron job that runs as root every 60 seconds. Everything works except ...