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. (3 Replies)
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)
Hi All,
Is it possible to count number of occurrences of a pattern in a single record using awk??
for example:
a line like this:
abrsjdfhafa
I want to count the number of a character occurrences. but still use the default RS, I don't want to set RS to single character. (1 Reply)
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)
Hey Unix gurus,
I would like to count the number occurrences of all the words (regardless of case) across multiple files, preferably outputting them in descending order of occurrence. This is well beyond my paltry shell scripting ability.
Researching, I can find many scripts/commands that... (4 Replies)
Hi,
I need help to count the number of occurrences in $3 of file1.txt. I only know how to count by checking one by one and the code is like this:
awk '$3 ~ /aku hanya poyo/ {++c} END {print c}' FS="\t" file1.txt
But this is not wise to do as i have hundreds of different occurrences in that... (10 Replies)
Hello,
I have a file like following:
ALB_13554 1 1 1
ALB_13554 1 2 1
ALB_18544 2 0 2
ALB_18544 1 0 1
This is a sample of my file, my real file has 441845 number of fields. What I want to do is to calculate the number of 1 and 2 in each column using AWK, so, the output file looks like... (5 Replies)
Hi,
I have two text files (1.txt and 2.txt).
2.txt contains two columns which are extracted from 1.txt using a simple if(condition) print.
I want to:
- count how many times the values contained in 2.txt appear in 1.txt
-if they appear just one time, I have to delete the entire row in... (5 Replies)
Hi all,
I have a quick question:
I have a 4 column tab-separated file.
I want to count the number of times each unique value in column 2 appears and add that number in a 5th column.
I have the following input file:
waterline-n below-sheath-v 14.8097 A
dock-n below-sheath-v ... (4 Replies)
Discussion started by: owwow14
4 Replies
LEARN ABOUT OSX
stringdups
stringdups(1) BSD General Commands Manual stringdups(1)NAME
stringdups -- Identify duplicate strings or other objects in malloc blocks of a target process
SYNOPSIS
stringdups [-minimumCount count] [-stringsOnly] [-nostacks] [-callTrees] [-invertCallTrees] pid | partial-executable-name
DESCRIPTION
stringdups examines the content of malloc blocks in the specified target process. For all blocks which have the same content, it shows a
line with the number of such blocks, their total allocated size (the total size in the malloc heap, not just the specific size of their con-
tent), and the average allocated size.
If the MallocStackLogging environment variable was set when the target process was launched, stringdups also displays stack backtraces or
call trees showing where all the blocks with a particular grouping of content were allocated.
stringdups gathers the content of blocks of various types including:
o C strings (composed of UTF8 characters, null terminated, of any length)
o Pascal strings (composed of UTF8 characters with length byte at start, no longer than 255 characters, not necessarily null terminated)
o NSString of all types (immutable, mutable, UTF8, Unicode). Malloc blocks which are the storage blocks for non-inline or mutable
NSString's are listed separately. The string content is shown for both but the block sizes accurately show what is allocated in the mal-
loc heap for that particular chunk of storage.
o NSDate
o NSNumber
o NSPathStore2 (Cocoa's representation of file paths)
o item counts for collection classes such as NSArray, NSSet, and NSDictionary
OPTIONS -minimumCount count Only print information for object descriptions which appear at least count times in the target process. The default
minimum count is 2. To see all strings in the target process, use 1 or use 'heap <pid> -addresses all'.
-stringsOnly Only print information for objects that have string content such as C or Pascal strings, or NSString.
-nostacks Do not print stack backtraces or call trees even if the target process has the MallocStackLogging environment variable
set.
-callTrees If stack bactraces are available, then by default all the object descriptions for a particular stack backtrace are con-
solidated together. However if this argument is passed then the output is consolidated by each particular string and a
call tree is displayed showing the allocation backtraces of all occurrences of objects with that description. This out-
put can be very lengthy if minimumCount is a low value, because the same call tree may be displayed many times.
-invertCallTrees Same as except that the call trees are printed from hottest to coldest stack frame, so the leaf malloc call appears
first.
SEE ALSO heap(1), leaks(1), malloc_history(1), vmmap(1), DevToolsSecurity(1)BSD July 21, 2011 BSD