If it is safe to assume that the source of your DNA sequence data (I presume that's what that is) will always generate single-byte characters, then -c will give the same result as -m.
If that's not a safe assumption, then you need to ask yourself a question: Do you care about counting the number of letters on each line or do you care about counting the number of bytes that are used to represent those letters? For the former, -m. For the latter, -c.
Regards,
Alister
Alister and Corona688,
Note that if you read a line into a shell variable and ask the shell for the length of the variable:
the number printed will be the number of characters (not including the line terminating <newline> character); not the number of bytes.
And, if you're processing a file with a standards conforming implementation of awk:
the numbers printed will again be the number of characters (not including the line terminating <newline> character); not the number of bytes.
Of course if you're using EBCDIC, ASCII, or one of the ISO 8859-* code sets, number of bytes is the same as number of characters.
Last edited by Don Cragun; 08-26-2013 at 06:26 PM..
Reason: Typo in ISO Standard codeset number.
I would really like to have a script that will accept the key press from the user with out having to press the enter key afterwards.
i.e.
echo "Press Y to print \c"
read YesNo
At this point the user has to press the enter key to continue. Is there a way to accept the key press from the... (3 Replies)
Hello,
I have a file where I am supposed to convert all the single i characters to uppercase, but when I try, it converts all the i's inside of words to uppercase as well.
I tried doing:
cat filename | sed 's/i/I/g'
but that obviously does not work.
Any help would be greatly... (6 Replies)
Hi all,
I have what I would have thought was a very simple problem but I can' find an elegant solution.
I have a file which has a single value you in it, say 194. All I want my perl script to do is open the file, read the value and assign that value to a variable.
I've done stuff like... (1 Reply)
Hello,
I need to replace the comma to something else between the single quote:
1aaa,bbb,'cc,cc','ddd',1
2aaa,bbb,'ccc','d,d',0
to
1aaa,bbb,'cc<comma>cc','ddd',1
2aaa,bbb,'ccc','d<comma>d',0
Can someone help? Thanks. (2 Replies)
Hi,
I'm sorry if this has already been posted somewhere but I can't seem to find it on the forums (or anywhere on google :( )
I am writing a script where a user must enter a single character to perform an action.
For example, Press Q to Quit or R to Refresh
Basically I am stuggling... (5 Replies)
This reads single keystrokes and produces an output:
#! /bin/bash
while : ; do
read -s -n 1 >/dev/null 2>&1
echo ${REPLY}
done | awk '{print}'
This second one don't. Even though these examples make no sense; the real code is more complicated. Who knows what the problem is... (2 Replies)
Hi Guys,
Happy New Year to you all!
I have a requirement to read an embedded new-line using KSH's read builtin.
Here is what I am trying to do:
run_sql "select guestid, address, email from guest" | while read id addr email
do
## Biz logic goes here
done
I can take care of any... (6 Replies)
How to remove characters enclosed in single quotes?
My data is something like this
(03/22/2011 08:17:26.650) : ( -> '1' -> '1-1-3' -> '6' -> '1' -> 'SALMOR58BB4' aaaaa bbbbbb ccccc ((dddd))
I want the output to be
(03/22/2011 08:17:26.650) : ( -> -> -> -> -> aaaaa... (2 Replies)
Hi,
I have file in which fields are pipe (|) separated and the record separator is new line (\n). But sometime I am getting a field value which is spread across multiple line. Basically I am getting a file from another system in the below format and needs to process the file and load data into a... (3 Replies)
Hi all.
I’ve 2 inputs here and would like to produce it in single ouput. I’ve drafted simple shell script but not sure how to put all this together. The final output should be “GROUP-XYZ” instead of “TEST”
Please advise.
INPUT1
GROUP-XYZ
INPUT2
type8code0@box:~/dbedit$ cat... (8 Replies)