2
votes
1answer
36 views

Bash script match grep output and send message

I am developing a script for monit status checking so I can send OK status messages to NagiOS NSCA server (passive checks). The problem I am having is that my bash script still sends messages if the ...
0
votes
1answer
37 views

Bash — Using a character-based graphical utility to store output

I'm using bash to script a remote dialing program in an Ubuntu(14.04) server and I am having some significant trouble trying to read the output from it. I would like the program to execute as I would ...
0
votes
0answers
27 views

Howto run interactive commands, as another user [migrated]

I'm trying to write a bash script that context switches to another user (root, in this case) executes a set of commands to i. create a user (interactively prompting invoker for username) then ii. ...
0
votes
1answer
38 views

Bash if statement equal output from last command

I am trying to equal something from last command with bash if statement: #!/bin/bash monit status if [ "status" != "error" ]; then echo -e "hostname\ttest\t0\t0" | /usr/sbin/send_nsca -H ...
0
votes
3answers
40 views

tail -f AND allow text input

I want to create a script that allows some interactivity by tail -f logfile from myService allows text to be entered and sent to myService What I could not solve yet is this two functions working ...
0
votes
1answer
56 views

Kill child process when the parent exits

I'm preparing a script for Docker, which allows only one top-level process, which should receive the signals so we can stop it. Therefore, I'm having a script like this: one application writes to ...
-1
votes
1answer
36 views

RSYNC only listing files when run from bash script

I am trying to copy backup files of my companies mail server to our backup server via RSYNC. I use this same script for backing up our web hosting server backup files with no issues. When I type ...
1
vote
0answers
57 views

Linux Script to login to Raspberry pi and run some scripts inside raspberry pi [closed]

This is my scenario, We have some sensors on different sites, these sensors are connected with some equipment having SIM cards in it to allow the internet connection. On the other hand, we have a ...
-1
votes
1answer
38 views

how to set linux hostname based on flashdisk volume label [closed]

i'am running live linux, which run from FAT32 flashdisk since i run a lot of pc using this flashdisk, its difficult to identify which IP for its hostname, since its ip need to be dynamically ...
0
votes
0answers
22 views

Script to apply Simple Finder restrictions to Mac OS X user?

Is it possible to script (e.g. with AppleScript or bash shell script) applying the Simple Finder and an associated application whitelist to a local user account on Mac OS X? We are using Mac OS X ...
0
votes
1answer
43 views

Curl pressing enter or ctr+c in order to have the right response [closed]

This is a script that checks my current ip on this site: http://myip.dnsdynamic.org/ and pick the response and calls an API in order to update my dynamic ip. Here the script: curl --user ...
1
vote
1answer
52 views

Bash: delete old files except one

I am using the following command to delete old backup files: find backups/ -name "bak_*.tbz" -mmin +4800 -exec rm -vf {} \; The problem: When there are no new files, than all files are deleted. I ...
1
vote
1answer
43 views

cp/rsync command with destination as symlink to a directory

I am working on a cPanel backup solution at the moment. We are now informed about this exploit. Exploit : Full ROOT ACCESS to server 1.) create malicious file from, normal user account: mkdir root ...
0
votes
1answer
229 views

Is it possible to auto update php.ini via a bash script? [closed]

I'm trying to write an install script and i need to change the sendmail line in php.ini but I want to do this automatically at the moment I'm doing this manually: sudo nano ...
1
vote
3answers
93 views

Override path to binary for particular user

My question seems to be trivial but I didn't manage to find anything helpful in internet. I have a binary in /urs/bin/binary but it is outdated and newer version is available on some mount for ...
-1
votes
2answers
108 views

Monitor port status in Linux [closed]

I want to monitor the list of used ports in linux system. I want to make a script that can run an alert when a new port is up or down. For example when the port 8080 is up , i get an alert: this port ...
2
votes
2answers
249 views

Add time stamp to script log entries

Currently I have my bash script using exec 22>&2 21>&1 1>$log 2>&1 to write stderr and stdout to a log file. I would like to add a time stamp for each entry, but I haven't ...
1
vote
2answers
349 views

Shell script command output in if condition comparison fails to compare to same value string

I'm incorporating a script snippet which determines Android version via: adb shell getprop ro.build.version.release which returns: 4.1.2 or 4.0.4 The snippet currently looks like this: if [ "$(adb ...
2
votes
5answers
228 views

debian bash/sh string execution

I am stuck with this piece of code here user@server:~$ TEST="ssh rsync@otherserver.example.org 'date; hostname -A; uname -a'" user@server:~$ $TEST bash: date; hostname -A; uname -a: Command not ...
0
votes
1answer
66 views

Script to move Maildir contents to its parent dir but for multiple folders

I totally suck at Bash/Python/Ruby/Perl Scripting (need to practice/learn some more) so I'm asking for a little help :-) I need to move about the contents of about 60 Maildirs to their parent folder ...
0
votes
4answers
326 views

Script runs on 50 servers. How can I ensure only one executes a particular step?

I have some work that needs to be done on 50+ servers. The first step is to checkout an updated version of some source code onto a shared directory (assume all have the shared drive mounted). The ...
0
votes
1answer
89 views

Close a SSH Session when it suspend

I start a ssh session on a remote host and execute a script on the remote host. The Script is an update script that change the remote IP. Now my local bash script hanging on the line with this ...
1
vote
1answer
366 views

How to not run /etc/profile.d/custom.sh during Secure FTP login

When I attempt to Secure FTP (using WinSCP) to my CentOS 6.4 box I'm prompted with a message that states: Received too large (168438314 B) SFTP packet. Max supported packet size is 1024000 B. This ...
0
votes
2answers
235 views

Putting this command into bash script

with help of google , script that measures multicast streams bandwidth. Here it is tcpdump -tnn -i eth1 -f multicast | sort | uniq -c | awk '{print $3,"> "$5,$1*$NF/2*8/1024 " Kbps"}' | awk '$1 ...
0
votes
1answer
61 views

How to write a script to install multiple things by just executing it

I have a server (centOS) on which I would like to install the staple development tools. Java, Tomcat, and MySql. What is a good way to write a script that can be ran on newly spawned server so that ...
0
votes
1answer
170 views

> /dev/tty - What is the purpose of this command?

This is in one of the rc scripts in Red Hat and I want to understand the purpose of > /dev/tty[n] last=0 for i in `LC_ALL=C grep '^[0-9].*respawn:/sbin/mingetty' /etc/inittab | sed 's/^.* ...
-1
votes
1answer
96 views

Can not seem to get expr substr to work

Can anyone tell me what I am doing wrong ? [ /jlr/sub/libexec/vmr-staging ] $ expr substr "onetwothree" 1 4 expr: syntax error I got the syntax from http://stackoverflow.com/a/220464/1150847
0
votes
1answer
105 views

Recursively delete empty folders with verbose output

This should be fairly simple, but I am not sure what i'm missing. I'd like to recursively delete empty directories, and get an output for what's being deleted, this command works for sure, but I just ...
1
vote
2answers
2k views

Is it possible to change BIOS settings from Linux?

I'm trying to write a script to enable IPMI on a ton of machines without having to hook up a KVM to them one by one. Is it possible to change the BIOS settings from Linux? OS is SL6. I understand ...
0
votes
2answers
65 views

get informations from x servers per ssh by bash script

I've server Master,SlaveA,SlaveB,SlaveC, and want to get eg. the space information from the server by executing one bash script on the master. How can I do that? --case-- 192.168.1.1 - Master ...
1
vote
1answer
67 views

Bash, what does this redirect command do

I have a script that looks something like this: ruby foo.rb > log.out 2> error.log < /dev/null & In this case, i understand that STDOUT is redirecting to log.out and that 2> is ...
2
votes
3answers
445 views

Bash script: Monitor hotfolder and partial files

I have a customer that upload files through FTP, I made a script that basically monitor the ftp folder and move the file on a production machine. How can I check if the file has been completely ...
0
votes
2answers
943 views

Linux command to find and delete certain files, but output the result or verbose mode?

So I use these command on my storage server to clean up some junk, but it doesn't produce any output or result. I found the syntax online somewhere and just modified for which files I need it. What ...
1
vote
2answers
253 views

change user within bash script

I have a simple bash script which runs great as a regular user. When launched from postfix, it runs as nobody:nobody which prevents many commands from working. Is it possible for the script to ...
0
votes
2answers
903 views

Good pratice to create script to start/stop/restart service?

I was wondering what is a good pratice to create a good script to start/stop/restart some service. I will try to make myself more clear, ok ? Nowadays, I do something like this: let's say I would like ...
0
votes
1answer
32 views

Omnibus uniform Chef version install across platforms

So I'm looking for a uniform way to install chef on a number of different servers running different platforms. I know I can use the omnibus installer for this, but I also need a way to lock or ...
-3
votes
3answers
2k views

How to find files of certain extension and tar each of them in to another location

I have script for finding files of certain type and compress them to a single tar archive and put in to other place. But now, there is a change in requirement, that I need to find files of certain ...
3
votes
1answer
152 views

echo $? doesn't work when executed remotely

When I execute a command as below it gives me an output as expected but when I run the same command on remote server it always gives me echo $? as 0. locally # <some command> # echo $? ...
0
votes
1answer
147 views

Crontab start a screen

I started a screen by shell script in crontab, when I entered the screen, the left side became "sh-4.1#". While I runed the script directly, it was nomal with "[root@localhost data]". What happened? ...
1
vote
2answers
77 views

Download with the bash or Python while keeping the directory tree/structure

I have a list of files that I need to download such as www.domain.com/files/archive.zip www.domain.com/img/icon.ico www.domain.com/files/backup/archive.zip www.domain.com/backup/img/icon.ico ...
0
votes
1answer
163 views

is it possible to provide variable arguments to xinetd service?

I have created a bash script to listen on specific port (using xinetd), so whenever there is someone connecting to port, then it invokes the script and provides its output to user. But i need to ...
-3
votes
1answer
333 views

Which scripting language to use to asynchronously ssh into equipment, run several commands, parse the output, and save to a file on my computer? [closed]

There are several points I'd like to stress in my question. I'd like to login by asynchronously ssh'ing into our infrastructure equipment. Meaning, I do not want to connect to only one device, do ...
1
vote
1answer
133 views

Why would a process monitoring script use exit 1; on finding no problems?

General question: On a Linux (Centos) server, if a process monitoring script run by cron is set to close with exit 1; rather than exit 0; on finding that everything is okay and that no action is ...
0
votes
1answer
30 views

Get directory of a symlinked script

I have to determine the directory of a script which is symlinked. /usr/local/src/myscript/myscript.sh /usr/local/bin/myscript.sh (Symlink to the one above) A cronjob executes ...
0
votes
3answers
455 views

When to use Bash, when Python/Perl/Ruby? [closed]

What's your rationale for when to write a Bash script and when to use a more powerful scripting language (Python, Perl, Ruby, ...)? I'm finding that very simple scripts are nicer with Bash, but many ...
0
votes
2answers
139 views

Call 'script' command and exit it from within a bash script

I'm using the linux 'script' command http://www.linuxcommand.org/man_pages/script1.html to log all input and output in an interactive bash script. At the moment I have to call the script command, ...
0
votes
1answer
65 views

run script for all users

I put some script on my ubuntu linux in /etc/profile.d/myscript.sh but it's just work on my user. But it's work only user logged in not when I use sudo. # myscript.sh export MYVAL="HELLO" echo ...
1
vote
1answer
101 views

Script expression to get part of a string?

I'm using the bash shell in CentOS, version ... $ uname -a Linux mydomain.com 3.2.29-48.63.amzn1.x86_64 #1 SMP Sat Sep 15 01:43:12 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux In my shell script, I want ...
2
votes
3answers
1k views

How can I easily convert HTML special entities from a standard input stream in Linux?

CentOS Is there an easy way to convert HTML special entities from a data stream? I'm passing data to a bash script and sometimes that data includes special entities. For example: "test" ...
-2
votes
3answers
159 views

Determine hostname of connected ethernet switch

I've a bonding on two interfaces. I want to check the switch-redundancy by getting the hostname (or IP) of the switch, which a given interface is connected. Currently I'm checking this with following ...