Debugging shell scripts can be done with echo or set -x. The latter, when placed near the top of a script will produce lots of output, so here is a driver script that puts your echo-augmented script through its paces:
Producing:
The driver script lists your script, then tests it. As you can see, I've added a few echo statements. The results look OK to me, so I'd guess you called it in an unconventional way.
As an aside: using l (ell), 1 (one), and i (eye) can be confusing to the user of a script because in many typefaces they all look very similar.
I'm sure this is something simple I am overlooking somehow. I'd like the ability to pass -options into my shell scripts. For example my file called "input.sh" I can do the following:
root# ./input.sh 1
and it will result:
root#./input.sh 1
You passed me a 1
Just like an init script, etc.... (4 Replies)
i have a script which has 2 options.
a
b
And a has 6 sub options.
i want to write a script which will call the parent script and give options automatically.
examle:
linasplg11:/opt/ss/kk/01.00/bin # startup.sh
/opt/ss/rdm/01.00
Please select the component to... (2 Replies)
I have to use shell script to run series of commands on another unix box by connecting through SSH and giving user credentials. For running commands on remote machine I have to use options reading from a local file.
Process:
Connecting to remote unix server <host1.ibm.com> through ssh
Login: ... (2 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
1) Write a Menu Driven Shell Script which accepts1 to 5 options and performs the following actions for... (1 Reply)
one thing i was trying to figure out is if you can give people the option to choose what they want to do in a shell script. for example, let's just say that you have a simple shell script to install a couple of programs, can you make it to where you can press a certain key to install a certain... (1 Reply)
Hi All
I am little bit confused to write a script. This script needs the options like unix commands
i.e.
–S to start process.
–C to check process.
-u : user
-p : password
like.
script should run like this
./script.sh -u username -p ***** -S processname
there may... (5 Replies)
Hi There,
I am trying to write a script which has to pick the prompted options by itself(i mean option to choose will be passed)
here is real scenario i am trying to do.
i have an executable(diagnos) which gets called in shell script, when the executable (diagnos) runs i get following as... (8 Replies)
I have a menu option which will look as follows
Select a menu option
1.change password
2.login as root user
3.show system version
4.quit
Select> 1
please enter the new password: unix
reenter the new password: unix
press any key to enter
(then displays again the menu options to enter the... (4 Replies)
Hi Friends,
I have a menu based tool which requires input/option to proceed further. How to make a shell script ?
eg: menu looks like
Get_data.sh
to continue (y/n) :
Here I need to key in "y" to proceed.
I want to prepare a script which should consider option y. (5 Replies)
Hi Experts,
I've got this problem where I need to add two array in shell script such that that is an element is greater than 9 then it get further split into individual digit, something like below :
Input :-
array1=(2 6 8 9 10 12)
array2=(5 4 6 8 12 14)
Output :-
array3=(7 1 0 1 4 1 7 2 2... (8 Replies)
Discussion started by: mukulverma2408
8 Replies
LEARN ABOUT LINUX
checkbashisms
CHECKBASHISMS(1) General Commands Manual CHECKBASHISMS(1)NAME
checkbashisms - check for bashisms in /bin/sh scripts
SYNOPSIS
checkbashisms script ...
checkbashisms --help|--version
DESCRIPTION
checkbashisms, based on one of the checks from the lintian system, performs basic checks on /bin/sh shell scripts for the possible presence
of bashisms. It takes the names of the shell scripts on the command line, and outputs warnings if possible bashisms are detected.
Note that the definition of a bashism in this context roughly equates to "a shell feature that is not required to be supported by POSIX";
this means that some issues flagged may be permitted under optional sections of POSIX, such as XSI or User Portability.
In cases where POSIX and Debian Policy disagree, checkbashisms by default allows extensions permitted by Policy but may also provide
options for stricter checking.
OPTIONS --help, -h
Show a summary of options.
--newline, -n
Check for "echo -n" usage (non POSIX but required by Debian Policy 10.4.)
--posix, -p
Check for issues which are non POSIX but required to be supported by Debian Policy 10.4 (implies -n).
--force, -f
Force each script to be checked, even if it would normally not be (for instance, it has a bash or non POSIX shell shebang or appears
to be a shell wrapper).
--extra, -x
Highlight lines which, whilst they do not contain bashisms, may be useful in determining whether a particular issue is a false posi-
tive which may be ignored. For example, the use of "$BASH_ENV" may be preceded by checking whether "$BASH" is set.
--version, -v
Show version and copyright information.
EXIT VALUES
The exit value will be 0 if no possible bashisms or other problems were detected. Otherwise it will be the sum of the following error val-
ues:
1 A possible bashism was detected.
2 A file was skipped for some reason, for example, because it was unreadable or not found. The warning message will give details.
SEE ALSO lintian(1).
AUTHOR
checkbashisms was originally written as a shell script by Yann Dirson <dirson@debian.org> and rewritten in Perl with many more features by
Julian Gilbey <jdg@debian.org>.
DEBIAN Debian Utilities CHECKBASHISMS(1)