|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
How to create an executable bash script for these commands?
Post 302903148 by sea on Sunday 25th of May 2014 09:09:15 AM
05-25-2014
Again, use either sudo OR su.
It is recomended to 'not' use sudo or su inside the script.
As once the script is executeable, it becomes an 'application' or 'command', and thus can be sudo'd.
-> sudo $(which cleariptables.sh)
If you copy line by line, why do you write a script?
Execute the script to try.
The $(which APPNAME) part is required, as the root user, which you become upon su/sudo, dont have $HOME/bin/cleariptables.sh available, so you need to invoke which to supply, or straighly use, the full path to the script.
NOTE: The $(which APPNAME) part will NOT work upon su -c '$(which appname)', as this one will execute the which as root, which wont find the /home/bonafide/bin dir, despite the script in that.
Can we cosider "How to make an executable bash script" as done,
while i now want to know, is there an error in the script?
Or why do you want to make the awk a one liner?
This doesnt help read ability, and there is no use to it.
Honestly, and i dont want to be mean, 'one-liners' are for 'short' commands,pipes or very simple structures, and the more complex they are, the more advanced one should be.
Prior to attempt one liners, i highly recomend to write code that is properly syntaxed and uses idention. (regarding the script, this is achieved, but since you copied it, doesnt count)
What i wanted to say is:
Once one understands what the code does, one can go for one-liners, otherwise one just aims for unreadable / unfunctional code. (in harsh words)
Until then, one should leave one-liners to those in the know / with the skill.
To understand oneliners (get familiar to them), search for them and split them up into working! multi-liners.
Have a nice sunday!
It is recomended to 'not' use sudo or su inside the script.
As once the script is executeable, it becomes an 'application' or 'command', and thus can be sudo'd.
-> sudo $(which cleariptables.sh)
Quote:
I did run the script but in a terminal using sudo su. I had to copy and paste line by line. The script works. I
Execute the script to try.
The $(which APPNAME) part is required, as the root user, which you become upon su/sudo, dont have $HOME/bin/cleariptables.sh available, so you need to invoke which to supply, or straighly use, the full path to the script.
NOTE: The $(which APPNAME) part will NOT work upon su -c '$(which appname)', as this one will execute the which as root, which wont find the /home/bonafide/bin dir, despite the script in that.
Can we cosider "How to make an executable bash script" as done,
while i now want to know, is there an error in the script?
Or why do you want to make the awk a one liner?
This doesnt help read ability, and there is no use to it.
Honestly, and i dont want to be mean, 'one-liners' are for 'short' commands,pipes or very simple structures, and the more complex they are, the more advanced one should be.
Prior to attempt one liners, i highly recomend to write code that is properly syntaxed and uses idention. (regarding the script, this is achieved, but since you copied it, doesnt count)
What i wanted to say is:
Once one understands what the code does, one can go for one-liners, otherwise one just aims for unreadable / unfunctional code. (in harsh words)
Until then, one should leave one-liners to those in the know / with the skill.
To understand oneliners (get familiar to them), search for them and split them up into working! multi-liners.
Have a nice sunday!
Last edited by sea; 05-25-2014 at 10:19 AM..
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Can anyone direct me to a resource that explains scripting in simple terms?
I have visited many sites and browsed this forum and have yet to find simple explanations. (8 Replies)
Discussion started by: rocinante
8 Replies
2. Shell Programming and Scripting
from CLI pressing Tab and character like a shows result of the commands starting with a,
can i use this in a script too and post the results to a file?
thanks (1 Reply)
Discussion started by: tvrman
1 Replies
3. Shell Programming and Scripting
Hello everybody,
Is there any way to make a script (Bash, KornShell, etc.) executable
by mouse clicking?
For example you have a file myscript.sh, you run:
$ chmod u+x myscript.sh
Therefore it becomes executable and all you need is to run from
the terminal:
$./myscript.sh... (2 Replies)
Discussion started by: dariyoosh
2 Replies
4. Shell Programming and Scripting
Hi all.
I've got a unix script at work that I just got done with. Now they want me to write some simple way to run it on Windows. Right now we log into a Solaris server using Hummingbird Exceed to gain a terminal. Im thinking that there really isn't any good way to get Windows and the server... (5 Replies)
Discussion started by: Grizzly
5 Replies
5. UNIX for Dummies Questions & Answers
Hey guys, so I've been trying to write a bash script called runSorter.sh that runs an executable that also takes in some parameters and outputs the results to a text file. The executable, sorter, takes in a number parameter. I want to make it so that you can input as many number parameters into... (4 Replies)
Discussion started by: Duo11
4 Replies
6. Shell Programming and Scripting
Hi here's my code
${ORACLE_HOME}/bin/sqlplus /nolog <<!EOF
--step 5 create db script start
set feedback off
set heading off
set echo off
conn / as sysdba
spool ${ORACLE_SID}_db_link.sql
SELECT 'CREATE '||DECODE(U.NAME,'PUBLIC','public ')||'DATABASE LINK '||CHR(10)... (2 Replies)
Discussion started by: jediwannabe
2 Replies
7. Shell Programming and Scripting
Hi Good morning all,
I want to create script file with multiple commands.
For ex:
pmrep connect is one of the command to connect to repository.
pmrep objectexport is another command to export objects to a file.
These commands should run sequentially.But when i try to execute this, the first... (4 Replies)
Discussion started by: SekhaReddy
4 Replies
8. Shell Programming and Scripting
Does it possible to make some bash script automatic to be a executable when transfered to another pc...? (5 Replies)
Discussion started by: tomislav91
5 Replies
9. UNIX for Beginners Questions & Answers
Hi Guys,
this is the scenario:
ubuntu pc and I have 10 wireless devices that I need to check their firmware version.
I would like to create a script that it will ask me IP, after I enter it, I hit enter then it will show me the version of the firmware.
this is what i do.
ssh... (9 Replies)
Discussion started by: gabak
9 Replies
10. Shell Programming and Scripting
Is there a way to make this make itself executable?
Thanks. :-)
cat > somescript.sh << \EOF
#!/bin/bash
block_count=$(sudo tune2fs -l /dev/sda1 | awk '/^Block count:/ {print $NF}')
reserved_block_count=$(sudo tune2fs -l /dev/sda1 | awk '/^Reserved block count:/ {print $NF}')
perl -e... (4 Replies)
Discussion started by: drew77
4 Replies
LEARN ABOUT DEBIAN
molly-guard
MOLLY-GUARD(8) [FIXME: manual] MOLLY-GUARD(8) NAME
molly-guard - guard against accidental shutdowns/reboots SYNOPSIS
shutdown [-hV] [--molly-guard-do-nothing] [-- script_options] halt [-hV] [--molly-guard-do-nothing] [-- script_options] reboot [-hV] [--molly-guard-do-nothing] [-- script_options] poweroff [-hV] [--molly-guard-do-nothing] [-- script_options] DESCRIPTION
molly-guard attempts to prevent you from accidentally shutting down or rebooting machines. It does this by injecting a couple of checks before the existing commands: halt, reboot, shutdown, and poweroff. This happens via scripts with the same names in /usr/sbin, so it only works if you have /usr/sbin before /sbin in your PATH! Before molly-guard invokes the real command, all scripts in /etc/molly-guard/run.d/ have to run and exit successfully; else, it aborts the command. run-parts(1) is used to process the directory. molly-guard passes any script_options to the scripts, and also populates the environment with the following variables: o MOLLYGUARD_CMD - the actual command invoked by the user. o MOLLYGUARD_DO_NOTHING - set to 1 if this is a demo-run. o MOLLYGUARD_SETTINGS - the path to a shell script snippet which scripts can source to obtain settings. molly-guard prints the contents of /etc/molly-guard/messages.d/COMMAND or /etc/molly-guard/messages.d/default to the console, if either exists. This is due to /etc/molly-guard/run.d/10-print-message. GUARDING SSH SESSIONS
molly-guard was primarily designed to shield SSH connections. This functionality (which should arguably be provided by the openssh-server package) is implemented in /etc/molly-guard/run.d/30-query-hostname. This script first tests whether the command is being executed from a tty which has been created by sshd. It also checks whether the variable SSH_CONNECTION is defined. If any of these tests are successful, test script queries the user for the machine's hostname, which should be sufficient to prevent the user from doing something by accident. You can pass the --pretend-ssh script option to molly-guard to pretend that those tests succeeds. Alternatively, setting ALWAYS_QUERY_HOSTNAME in /etc/molly-guard/rc causes the script to always query. The following situations are still UNGUARDED. If you can think of ways to protect against those, please let me know! o running sudo within screen or screen within sudo; sudo eats the SSH_CONNECTION variable, and screen creates a new pty. o executing those command in a remote terminal window, that is a XTerm started on a remote machine but displaying on the local X server. You have been warned. You can use the --molly-guard-do-nothing switch to prevent anything from happening, e.g. halt --molly-guard-do-nothing. OPTIONS
--molly-guard-do-nothing Cause molly-guard to print the command which would be executed, after processing all scripts, instead of executing it. -h, --help Display usage information. -V, --version Display version information. SEE ALSO
shutdown(8), halt(1), reboot(8), poweroff(8). LEGALESE
molly-guard is copyright by martin f. krafft. Andrew Ruthven came up with the idea of using the scripts directory and submitted a patch, which I modified a bit. This manual page was written by martin f. krafft madduck@madduck.net. Permission is granted to copy, distribute and/or modify this document under the terms of the Artistic License 2.0 COPYRIGHT
Copyright (C) 2008 martin f. krafft [FIXME: source] Apr 19, 2008 MOLLY-GUARD(8)