Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

Counting occurences of specific charachter in a file

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Counting occurences of specific charachter in a file
# 1  
Old 10-13-2004
Counting occurences of specific charachter in a file
Hi,
I need to count the number of occurences of the character " in a file that contains huge number of records.

What command could I use?
Please specify in detail since I am new :|

Thanks much.
# 2  
Old 10-13-2004
CPU & Memory try this...
Smilie
searching for character "d" in text !!!!!
grep -o 'd' FILENAME | wc -w
so if searching for metacharacter use a back slash...
# 3  
Old 10-13-2004
try
Code:
cat filename | tr -d '\n' | tr -s '"' '\n' | wc -l

awk might be better -
Code:
awk -v ch='"' '
       BEGIN {cnt=0 }                
       {cnt += gsub(ch,"Z") }
       END {print cnt}
      ' filename

Last edited by jim mcnamara; 10-13-2004 at 12:42 PM..
# 4  
Old 10-13-2004
Thanks guys...
Thanks guys.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Counting non-specific occurrences within a file.

I'm pretty new to scripting and didn't see an example of this issue yet. I am trying to count and print the total number of times each value is found within a file. Here is a short example of my starting file. value 3 value 3 value 3 value 3 value 4 value 6 value 6 value 6 value 6... (3 Replies)
Discussion started by: funkynmr
3 Replies

2. Shell Programming and Scripting

Counting occurences in column

Hi guys! I have a problem writing script that would convert this input into this output: I have an awk script that counts occurences of a sign in a column, but don't know how to change it so that I would give me desired output. script awk '{count++}END{for(j in count)... (2 Replies)
Discussion started by: grincz
2 Replies

3. Shell Programming and Scripting

Counting specific words from the log

Hi, I need a shell script which can provide details from error logs like this Aug 23 21:19:41 red mountd: authenticated mount request from bl0110.bang.m pc.local:651 for /disk1/jobs (/disk1) Aug 23 08:49:52 red dhcpd: DHCPDISCOVER from 00:25:90:2b:cd:7c via eth0: unknown client Aug 24... (2 Replies)
Discussion started by: ratheeshp
2 Replies

4. Shell Programming and Scripting

awk counting number of occurences

Hi, I am trying to count the max number of occurences of field1 in my apache log example: 10.0.0.1 field2 field3 10.0.0.2 filed2 field3 10.0.0.1 field2 field3 10.0.0.1 field2 field3 awk result to print out only the most occurence of field1 and number of occurence and field1 is... (3 Replies)
Discussion started by: phamp008
3 Replies

5. Shell Programming and Scripting

counting the number of occurences

say i've got a text file with >10million sequences: ssss ssss tttttt uuuuuu uuuuuu uuuuuu ... I'd like to convert the file so that the output will report the number of occurence right by each sequence: 2 ssss 2 ssss 1 tttttt 3 uuuuuu 3 uuuuuu 3 uuuuuu .... (3 Replies)
Discussion started by: johjoh
3 Replies

6. UNIX for Dummies Questions & Answers

How to count the occurences of a specific word in a file in bash shell

Hello, I want to count the occurences of a specific word in a .txt file in bash shell. Can somebody help me pleaze?? Thanks!!! (2 Replies)
Discussion started by: mskart
2 Replies

7. Shell Programming and Scripting

Counting the differences based on a specific rule

Hi, I've been trying to create a perl file to run something very specific. But I'm not getting any success. I'm not very good with hashing. I have a file with two columns (tab separated) (already sorted) 99890 + 100281 + 104919 - 109672 + 113428 - 114501 + 115357 + 115598 ... (7 Replies)
Discussion started by: labrazil
7 Replies

8. HP-UX

count occurences of specific character in the file

For counting the occurences of specific character in the file I am issuing the command grep -o 'character' filename | wc -w It works in other shells but not in HP-UX as there is no option -o for grep. What do I do now? (9 Replies)
Discussion started by: superprogrammer
9 Replies

9. UNIX for Dummies Questions & Answers

Counting number of occurences

Hi All, I have to count the number of occurences of the character " ; " in a given line. I had used the following awk command to achieve the same echo $KOP.dat|awk '{split($1,my,";"); for(i in my)c++ }END{print c-1}' My file KOP.dat had the following data ... (1 Reply)
Discussion started by: kingofprussia
1 Replies

10. UNIX for Dummies Questions & Answers

Counting occurences of different strings in a file

Hi, i'd like to know if the following is possible with a shell script, and can't find the answer in the search. Suppose i have a logfile build like this: # 8 :riuyzp1028 # 38 : riuyzp1028 # 25 : riuyvzp1032 # 30 : nlkljpa0202 # 1 : nlklja0205 # 38 : riuyzp1028 # 25 :... (4 Replies)
Discussion started by: Freerider
4 Replies
Login or Register to Ask a Question