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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
Old 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)

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
If you copy line by line, why do you write a script?
Execute the script to try.
Smilie


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..
 

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BASHBUG(1)						      General Commands Manual							BASHBUG(1)

NAME
bashbug - report a bug in bash SYNOPSIS
bashbug [--version] [--help] [email-address] DESCRIPTION
bashbug is a shell script to help the user compose and mail bug reports concerning bash in a standard format. bashbug invokes the editor specified by the environment variable EDITOR on a temporary copy of the bug report format outline. The user must fill in the appropriate fields and exit the editor. bashbug then mails the completed report to bug-bash@gnu.org, or email-address. If the report cannot be mailed, it is saved in the file dead.bashbug in the invoking user's home directory. The bug report format outline consists of several sections. The first section provides information about the machine, operating system, the bash version, and the compilation environment. The second section should be filled in with a description of the bug. The third sec- tion should be a description of how to reproduce the bug. The optional fourth section is for a proposed fix. Fixes are encouraged. ENVIRONMENT
bashbug will utilize the following environment variables if they exist: EDITOR Specifies the preferred editor. If EDITOR is not set, bashbug defaults to emacs. HOME Directory in which the failed bug report is saved if the mail fails. TMPDIR Directory in which to create temporary files and directories. SEE ALSO
bash(1) AUTHORS
Brian Fox, Free Software Foundation bfox@gnu.org Chet Ramey, Case Western Reserve University chet@po.cwru.edu GNU Bash-4.0 1998 July 30 BASHBUG(1)
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