counting characters Post: 302434413

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1. Shell Programming and Scripting

counting characters

Dears, I would like to count the number of "(" and ")" that occur in a file. (syntax checking script). I tried to use "grep -c" and this works fine as long as there is only one character (for which I do a search) on a line. Has anyone an idea how I can count the number of specific characters...

2. Shell Programming and Scripting

Counting characters between comma's

I have a comma delimited file that roughly has 300 fields. Not all fields are populated. This file is fed into another system, what I need to do is count the amount of characters in each field and give me an output similiar to this: 1 - 6,2 - 25 The first number is the field and the second...

3. UNIX for Dummies Questions & Answers

counting the occurence of particular characters

I want to list the occurence of particular characters in a line. my file looks like this a,b,c,d e,f,g h,y:e,g,y s f;g,s,w and I want to count how many commas are in each line so the file in the end looks like this: a,b,c,d 3 e,f,g 2 h,y:e,g,y s 3 f;g,s,w ...

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Counting characters with sed

Input: ghw//yw/hw///??u How can i count the slashes("/") using sed?

5. Shell Programming and Scripting

taking characters and counting them

Nevermind, I figured out a way using the sed command. But I forget the basic way of counting characters within a variable :(

6. Shell Programming and Scripting

Counting characters within a file

Ok say I wanted to count every Y in a data file. Then set Y as my delimiter so that I can separate my file by taking all the contents that occur BEFORE the first Y and store them in a variable so that I may use this content later on in my program. Then I could do the same thing with the next Y's...

7. Shell Programming and Scripting

Counting the number of characters

Hi all, Can someone help me in getting the following o/p I/p:...

8. Shell Programming and Scripting

Counting characters vertically

I do have a big file in the following format >A1 ATGCGG >A2 TCATGC >A3 -TGCTG The number of characters will be same under each subheader and only possible characters are A,T,G,C and - I want to count the number of A's, T's,G's, C's & -'s vertically for all the positions so that I...

9. Shell Programming and Scripting

Counting characters at each position

Hi All, here's a question from newbie I have a data like this, which set of small DNA sequences separated by new line GAATCCGGAAACAGCAACTTCAAANCA GTNATTCGGGCCAAACTGTCGAA TTNGGCAACTGTTAGAGCTCATGCGACA CCTGCTAAACGAGTTCGAGTTGAANGA TTNCGGAAGTGGTCGCTGGCACGG ACNTGCATGTACGGAGTGACGAAACCI...

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nice

NICE(2) 						     Linux Programmer's Manual							   NICE(2)

NAME

       nice - change process priority

SYNOPSIS

       #include <unistd.h>

       int nice(int inc);

DESCRIPTION

       nice adds inc to the nice value for the calling pid.  (A large nice value means a low priority.)  Only the superuser may specify a negative
       increment, or priority increase.

RETURN VALUE

       On success, zero is returned.  On error, -1 is returned, and errno is set appropriately.

ERRORS

       EPERM  A non-super user attempts to do a priority increase by supplying a negative inc.

CONFORMING TO

       SVr4, SVID EXT, AT&T, X/OPEN, BSD 4.3. However, the Linux and glibc (earlier than glibc 2.2.4) return  value  is  nonstandard,  see  below.
       SVr4 documents an additional EINVAL error code.

NOTES

       Note  that  the routine is documented in SUSv2 to return the new nice value, while the Linux syscall and (g)libc (earlier than glibc 2.2.4)
       routines return 0 on success.  The new nice value can be found using getpriority(2).  Note that an implementation in which nice returns the
       new  nice  value  can  legitimately  return -1.	To reliably detect an error, set errno to 0 before the call, and check its value when nice
       returns -1.

SEE ALSO

       nice(1), getpriority(2), setpriority(2), fork(2), renice(8)

Linux								    2001-06-04								   NICE(2)

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting