08-26-2016
Thank you Don...
As ever your knowledge of the shell is beyond reproach.
Will read the man page later today...
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
please give the difference between AIX shell scripting and Unix shell scripting. (2 Replies)
Discussion started by: haroonec
2 Replies
2. Shell Programming and Scripting
Hi
How to call a shell scripting through a Perl scripting? Actually I need some value from Shell scripting and passes in the Perl scripting. So how can i do this? (2 Replies)
Discussion started by: anupdas
2 Replies
3. What is on Your Mind?
Hi all,
I would like to start developping some good scripting skills. Do you think it would be best to start with shell scripting or Perl? I already got a fundation, really basics, in perl. but I am wondering what would be best to be good at first.
Can you please help me determine which one to... (14 Replies)
Discussion started by: Pouchie1
14 Replies
4. Shell Programming and Scripting
A file contains: abcdef
I need : a b c d e f
It's easy with sed
sed 's/./& /g'but this is embedded linux that doesn't have sed/awk. The shell is unknown but it's bashlike. Parameter expansion works and seems promising and. A question mark seems to work as a wildcard, but there doesn't seem... (5 Replies)
Discussion started by: fubaya
5 Replies
5. Shell Programming and Scripting
Hi,
i want to check if a variable var1 is not a or b or c
pseudo code:
If NOT (var1 = a or var1 = b or var1 = c)
then
...
fi
I want to use POSIX complaint Korn shell, and for string comparison
For the following code, logical.sh
#!/usr/bin/ksh
var="j"
echo "Var : $var"
if ! { || ||... (12 Replies)
Discussion started by: ysrini
12 Replies
6. Shell Programming and Scripting
The POSIX shell standard grammar rules are at
Shell Command Language
I am trying to understand Rule 7 and I don't. I think there may be some mistakes there. I am not complaining about the standard; rather, I am concerned that my perception is wrong, and I don't understand something important.... (3 Replies)
Discussion started by: Mark_Galeck
3 Replies
7. What is on Your Mind?
Not even thinking that POSIX-Shell is deprecated, but I like working with bash very much, because of it's increased comfort and advanced functions. And in my world here it's available everywhere as default.
Working with kubernetes now, it seems there is a paradigm shift in terms of resources.... (1 Reply)
Discussion started by: stomp
1 Replies
8. Shell Programming and Scripting
Hi all,
I am learning POSIX shell programming, and the book I read, uses the let command for integer arithmetic.
I have downloaded and use the shellcheck program on Linux.
This programs says:
In POSIX sh, 'let' is undefined.
See the screenshot attached.
What is the POSIX... (1 Reply)
Discussion started by: johnprogrammer
1 Replies
9. Shell Programming and Scripting
Hi all...
This is just a fun project to see if it is possible to get a square root of a positive integer from 1 to 9200000 to 6 decimal places on a 64 bit architecture machine.
It is coded around dash and the results show the values from 0 to 10000.
Complex numbers can easily be catered for by... (3 Replies)
Discussion started by: wisecracker
3 Replies
10. OS X (Apple)
Hi all...
Apologies for any typos, etc...
This took a while but it didn't beat me...
Although there are many methods of generating random numbers in a POSIX shell this uses integer maths and a simple C source to create an executable to get epoch to microseconds accuracy if it is needed. I take... (8 Replies)
Discussion started by: wisecracker
8 Replies
LEARN ABOUT DEBIAN
choptest
CHOPTEST(8) System Manager's Manual CHOPTEST(8)
NAME
choptest - HylaFAX page chopping test program
SYNOPSIS
/usr/sbin/choptest [ options ] input.tif
DESCRIPTION
choptest is a program for testing the page chopping support in the HylaFAX software (specifically, in the faxq(8) program). choptest ana-
lyzes a TIFF/F (TIFF Class F) file with 1-D MH- or 2-D MR-encoded data and reports what the automatic page chopping logic would do if the
file were submitted for transmission. Options are provided for controlling whether choptest checks the last page or all pages of the docu-
ment, and what whitespace threshold to use in deciding if a page should be chopped.
OPTIONS
-a Chop all pages in the document. This is equivalent to setting the PageChop configuration parameter to ``all''; c.f. hylafax-
config(5). By default only the last page of the document is considered.
-t inches Set the minimum whitespace threshold that must be present on a page for it to be chopped. This is equivalent to the Page-
ChopThreshold configuration parameter; c.f. hylafax-config(5). By default choptest requires that at least 3 inches of trailing
whitespace be present.
EXAMPLES
The following shows a multi-page, high-resolution document. Each page has insufficient whitespace for it to be chopped.
hyla% ./choptest -a ~/tiff/pics/faxix.tif
Chop pages with >=3" of white space at the bottom.
Don't chop, found 67 rows, need 588 rows
Don't chop, found 67 rows, need 588 rows
Don't chop, found 67 rows, need 588 rows
Don't chop, found 53 rows, need 588 rows
Don't chop, found 91 rows, need 588 rows
Don't chop, found 99 rows, need 588 rows
Don't chop, found 47 rows, need 588 rows
SEE ALSO
faxq(8), hylafax-config(5)
October 3, 1995 CHOPTEST(8)