Sponsored Content
Top Forums Shell Programming and Scripting Count occurances of a character in a file Post 302153466 by cfajohnson on Monday 24th of December 2007 03:23:07 PM
Old 12-24-2007
Quote:
Originally Posted by Shivdatta
I want to find the number of occurences of a character in a file.
How do i do it.

Eg:
$cat file1.txt
Welcome to World of Unix.
$

If i want to find the occurences of 'o' then I should be getting 3.

Code:
tr -cd o file1.txt | wc -c

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Find occurances of a directory and count

I am writing my first shell script to do the following: Find all occurrences of a directory from the pwd Delete the directory (which is a hidden directory) Provide feedback w/ the number of directories deleted The problems I am having are two-fold: The user may not have the appropriate... (2 Replies)
Discussion started by: stringman
2 Replies

2. Shell Programming and Scripting

count the number chracters occurances in a line

Hi Could anybody tell me how to count the number of occurances of a character within a LINE. actually i have a single line with words seperated with '+' chracter e.g. abc+def+ghj+jkl+asd i want to separte the words above. Please provide the necessary logic in the form of a SHELL... (6 Replies)
Discussion started by: skyineyes
6 Replies

3. UNIX for Dummies Questions & Answers

Count occurances in a file

Hi, I have a fixed width file in the following format Sr.No A.No Name 1 2 PPP 3 4 PPP 5 6 TTT 7 8 OOO 9 10 OOO 11 12 OOO The 3rd column starts at position 10 and ends at 15. I want to count the number of occurances of each Name and output to a file Example in the... (2 Replies)
Discussion started by: samit_9999
2 Replies

4. Shell Programming and Scripting

Merging lines based on occurances of a particular character in a file

Hi, Is there any way to merge two lines based on specific occurance of a character in a file. I am having a flat file which contains multiple records. Each row in the file should contain specified number of delimiter. For a particular row , if the delimiter count is not matched with... (2 Replies)
Discussion started by: mohan_tuty
2 Replies

5. Shell Programming and Scripting

Count occurances of X Y Z in a file in 1 go.

Hi. I need to count multiple occurrences of X Y Z in a file in 1 go. At the moment I have the following scripts: ssh readonly@$ServerIP 'YEAR=xx;DAY=xx;MONTH=xx;LMONTH=xx;for i in 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 \ 16 17 18 19 20 21 22 23; do cat... (13 Replies)
Discussion started by: msullivan
13 Replies

6. Shell Programming and Scripting

How to count number of occurances of string in a file?

Gurus, Need little guidance. I have A.txt and B.txt file. B.txt file contains Unique strings. Sample content of B.txt file for which i cut the fourth column uniquely and output directed to B.txt file And A.txt file contains the above string as a fourth column which is last column. So A.txt... (7 Replies)
Discussion started by: Shirisha
7 Replies

7. Shell Programming and Scripting

Replace multiple occurances of same character with a single character.

Hi all, Greetings, I have the following scenario, The contents of main file are like : Unix|||||forum|||||||||||||||is||||||the||best so||||||be|||||on||||||||||||||||||||||||||||||||||||||||||||it And i need the output in the following form: Unix=forum=is=the=best so=be=on=it ... (3 Replies)
Discussion started by: dipanchandra
3 Replies

8. Shell Programming and Scripting

Replace first 3 occurances of a character in a file for each line

Hi all, I am very new to unix - ksh. I want to replace some characters in a file with some other, but only for first three occurances for each line. For eg: the first 3 occurances character ']' has to be replaced with ',' in each line. Please help. thanks Sreejith (1 Reply)
Discussion started by: rsreejithmenon
1 Replies

9. Shell Programming and Scripting

Count the occurances of numbers

I have a file as shown below. I need to count the unique occurrences of numbers in the first and second column only if the third column is <= 10. Otherwise print the corresponding numbers as zero. Thanks in advance!:) 58 80 40.74 76 80 9.78 76 80 8 12 6 9 30 28 8.23 45 12 ... (13 Replies)
Discussion started by: andreaalex
13 Replies

10. UNIX for Beginners Questions & Answers

Grep pattern file and count occurances

Guys I am trying grep to read from pattern file and count occurances of each word. input is firstplace secondplace secondpot patternfile is place first second i want the following. 1-count number of times keywords in patternfile occurs in begining of each line in input file. so... (12 Replies)
Discussion started by: ahfze
12 Replies
CAT(1)							      General Commands Manual							    CAT(1)

NAME
cat - catenate and print SYNOPSIS
cat [ -u ] [ -n ] [ -s ] [ -v ] file ... DESCRIPTION
Cat reads each file in sequence and displays it on the standard output. Thus cat file displays the file on the standard output, and cat file1 file2 >file3 concatenates the first two files and places the result on the third. If no input file is given, or if the argument `-' is encountered, cat reads from the standard input file. Output is buffered in the block size recommended by stat(2) unless the standard output is a terminal, when it is line buffered. The -u option makes the output completely unbuffered. The -n option displays the output lines preceded by lines numbers, numbered sequentially from 1. Specifying the -b option with the -n option omits the line numbers from blank lines. The -s option crushes out multiple adjacent empty lines so that the output is displayed single spaced. The -v option displays non-printing characters so that they are visible. Control characters print like ^X for control-x; the delete char- acter (octal 0177) prints as ^?. Non-ascii characters (with the high bit set) are printed as M- (for meta) followed by the character of the low 7 bits. A -e option may be given with the -v option, which displays a `$' character at the end of each line. Specifying the -t option with the -v option displays tab characters as ^I. SEE ALSO
cp(1), ex(1), more(1), pr(1), tail(1) BUGS
Beware of `cat a b >a' and `cat a b >b', which destroy the input files before reading them. 4th Berkeley Distribution May 5, 1986 CAT(1)
All times are GMT -4. The time now is 09:50 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy