I'm new at scripting but I thought I was getting pretty good at it. I've hit a snag. I try to use expr to compute a fraction say: expr 3 / 4, and I'm getting zero. I guess it's just truncating to the integer, in this case 0, but I need the decimal 0.75. What can I do to compute this value in... (2 Replies)
hi i have a script that is taking the difference of multiple columns in a file from a value from a single row..so far i have a loop to do that.. all the data is floating point..fin has the difference between array1 and array2..array1 has 700 x 300= 210000 values and array2 has 700 values..
... (11 Replies)
Is there a basic IP range script or a site that has basic script written?
I am making a script that is looking for a device on my network threw HTTP://. I and using a for loop with wget to download the page and using grep to search the code for the serial number.
My range is 172.16.x.x/16 I... (3 Replies)
HI
i have following problem,
i need to use split command to split files each should be cca 700 lines but i dont know how to inplement it in the scripts becasuse each time the origin file will be various size ,
any body got any idea
cheers (2 Replies)
Hello,
We have to configure servers with a range of IPs which is in itself a subject for another script assistance request -but- we have run into quite a few IP ranges with routing problems lately.
I've been trying to figure out the best way to test a range of IPs, I mean, manually it's not... (4 Replies)
Hi all,
Thanks in Advance , i am very new to programming part in script i think using some caluations+ sed command only we can do this process in script.
for exampl:
i have file in that one line is like this
using sed i can replace the date and all but my requirement is
The... (3 Replies)
I have 2 numbers
xmin = 0.369000018
xmax = 0.569000006
and want to calculate
(xmax- xmin) / 5.0
I have tried using $(( )) but is always giving an error (8 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:
I have written a script for a dice game that: (1) tells user that each of the 2 die are 6 sided (Spots=6); (2)... (3 Replies)
I'm working on a new exercise that calls for a script that will take in two arguments on the command line (representing the range of line numbers) and will subsequently print those lines from a a specified file. Command line would look like this: ./lines_script.bash 5 15 <file.txt. The script would... (8 Replies)
hi,
i would like to create a bash script that check which port in my Linux server are closed (not in use) from a specific range, port range (3000-3010).
the print output need to be only 1 port, and it will be nice if the output will be saved as a variable or in same file.
my code is:
... (2 Replies)
Discussion started by: yossi
2 Replies
LEARN ABOUT CENTOS
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)