I am looking for a bash command that counts the number of times a character appears in a file. For example "I am a newbie, trying to learn shell script". Then the command counts the number of e and gives them as 4. Also I want one that counts the number of times a character in a string is replaced.... (2 Replies)
hello all
i request you to give the solution for the following problem..
I want read the text file.and print the contents character by character..like if the text file contains google means..i want to print
g
go
goo
goog
googl
google
like this Using unix Shell scripting...
without using... (1 Reply)
How do you print out a single quote character in AWK? Using the escape character does not seem to work.
{printf "%1$s %2$s%3$s%2$s\n" , "INCLUDE", " \' ", "THIS" }
does not work. Any suggestions? (6 Replies)
We have an access log where column 8 displays the time in seconds like below:
Tj8nQAoNgwsAABov9cIAAAFL - 10.13.131.80 - - (0) - "GET /aaaaa/bbbb/bbbb
where column 8 is printed (0). We are trying to find how many entries are there that has column 8 greater than 0.
Remember $8 is (0) and not... (5 Replies)
I have kind of a strange one here. I have a file of consecutive /24 ip blocks. If there are 8 consecutive ip blocks which represent a /20 then I need to print the first line. I played around and did not get the results I need, especially when considering that the highest $3 will be is 255 and then... (6 Replies)
hi,
Is it possible to print a particular character n number of times in a line?
for example.
i am print the following line using echo command..
echo "files successfully moved"
i want to count the number of characters that are been displayed. i am doin it using
echo "files... (8 Replies)
Hi All,
I need to print the characters in the previous line just before the regular expression match
Please have a look at the input file as attached
I need to match the regular expression ^ with the character of the previous like and also the pin numbers
and the output file should be like... (6 Replies)
Discussion started by: kshitij
6 Replies
LEARN ABOUT DEBIAN
devel::calltrace
Devel::CallTrace(3pm) User Contributed Perl Documentation Devel::CallTrace(3pm)NAME
Devel::CallTrace - See what your code's doing
SYNOPSIS
#!/usr/bin/perl -d:CallTrace
package foo;
sub bar {
print "bar
";
baz(); }
sub baz {
print "boo
"; }
foo::bar();
RATIONALE
There are a number of perl modules in the CPAN that are designed to trace a program's execution as it runs. Each uses a different trick to
do its job, but none of them quite met my needs. The technique this module uses is quite simple and seems to be quite robust.
DB::sub
perl will automatically call DB::sub on each subroutine call and leave it up to us to dispatch to where we want to go.
Devel::CallTrace::called
This routine is called with two parameters:
DEPTH
The integer "depth" that this call is being called at.
PARAMS
A reference to the routine's @INC
To get at the subroutine that was being called, have a look at $DB::sub
BUGS
It uses the debugger. How could it not have bugs?
SEE ALSO
perldebguts, DB, a licensed therapist.
trace - Uses source filters. Scares me.
Devel::TraceCalls - Very robust API. The code seems to do all sorts of scary magic
Debug::Trace - Uses symbol table magic to wrap your functions.
Devel::TRaceFuncs - Requires developers to instrument their source files.
COPYRIGHT
Copyright 2005 Jesse Vincent <jesse@bestpractical.com>
This module may be redistributed under the same terms as perl itself
perl v5.10.1 2008-07-07 Devel::CallTrace(3pm)