HI all
I have a problem, I need to replace a field in a file, but only in the lines that have some pattern, example:
100099C01101C00000000059394200701CREoperadora_TX
100099C01201C00000000000099786137OPERADORA_TX2
in the example above I need to change the first field from 1 to 2 only if... (3 Replies)
I got a sample file like this.
$ cat test
12|13|100|s
12|13|100|s
100|13|100|s
12|13|100|s
I want to replace all 100 by 2000 only in 3rd field using "awk"
This is replacing all 100's :-(
$ awk -F "|" '{gsub( /100/,"2000");print}' test
12|13|2000|s
12|13|2000|s
2000|13|2000|s... (5 Replies)
I have a file 'test.out' with contents:
1|1|10|10|I|asdf|
2|1|10|10|I|sdfg|
4|1|10|10|I|hgfj|
34|0|10|10|I|sdg|
I want to modify the fifth column with value 'I' to 'A' for only the last line. Below is what I expect to see:
1|1|10|10|I|asdf|
2|1|10|10|I|sdfg|
... (3 Replies)
Hi,
I am taking the current time using localtime function in perl. For example if the time is:
#Using localtime
$time = "12:3:10";
I have to replace the value 3 (03) i.e second position to be 03.
The output should be:
12:03:10
But if the other string for example:
$str:... (1 Reply)
Hi all,
I have a huge file and I need to get ride of the fields 6-11 and replace the blanks in field 5 with a missing value(99999).
159,93848,5354,343,67898,45,677,5443,434,5545,45
677,45545,3522,244,
554,54344,3342,456,
344,43443,2344,444,23477... (12 Replies)
Hi All,
I have file1 line below:
$myName$|xxx
Now I need to read the file1 and find for $myName$ in file2 and replace with xxx
file1:
$myName$|xxx
file2:
My name is $myName$
expected output in file2 after executing the script is below:
my name is xxx
Thanks, (8 Replies)
hi,
i having a file with | seperated in which i need to search char in 3rd column and replace with null. i need to replace only the coulmn where character occurs in 3rd field
for eg:
file1.txt
xx|yy|xx|12
output file:
xx|yy||12 (5 Replies)
Hi All,
i have a file like
col1 col2 col3
13 24 NA
12 13 14
11 12 13
14 22 NA
18 26 NA
in this file if i found "NA" other values in the line are also replace by NA
Could you help me! (7 Replies)
hai guys,
pick the 1st field and calculate max length.
if suppose max length is 2,
then compare the all records if <2 then add zero's prefix of the record.
for ex:
s.no,sname
1,djud
37,jtuhe
in this max length of the 1st field is 2 right
the output wil be
s.no,sname
01,djud... (6 Replies)
Discussion started by: Suneelbabu.etl
6 Replies
LEARN ABOUT CENTOS
irb
IRB(1) Ruby Programmers Reference Guide IRB(1)NAME
irb -- Interactive Ruby Shell
SYNOPSIS
irb [--version] [-dfm] [-I directory] [-r library] [--[no]inspect] [--[no]readline] [--prompt mode] [--prompt-mode mode] [--inf-ruby-mode]
[--simple-prompt] [--noprompt] [--tracer] [--back-trace-limit n] [--irb_debug n] [--] [program_file] [argument ...]
DESCRIPTION
irb is the REPL(read-eval-print loop) environment for Ruby programs.
OPTIONS --version Prints the version of irb.
-E external[:internal]
--encoding external[:internal]
Same as `ruby -E' . Specifies the default value(s) for external encodings and internal encoding. Values should be separated
with colon (:).
You can omit the one for internal encodings, then the value (Encoding.default_internal) will be nil.
-I path Same as `ruby -I' . Specifies $LOAD_PATH directory
-U Same as `ruby -U' . Sets the default value for internal encodings (Encoding.default_internal) to UTF-8.
-d Same as `ruby -d' . Sets $DEBUG to true.
-f Suppresses read of ~/.irbrc.
-h
--help Prints a summary of the options.
-m Bc mode (load mathn, fraction or matrix are available)
-r library Same as `ruby -r'. Causes irb to load the library using require.
--inspect Uses `inspect' for output (default except for bc mode)
--noinspect Doesn't use inspect for output
--readline Uses Readline extension module.
--noreadline Doesn't use Readline extension module.
--prompt mode
--prompt-mode mode
Switch prompt mode. Pre-defined prompt modes are `default', `simple', `xmp' and `inf-ruby'.
--inf-ruby-mode
Uses prompt appropriate for inf-ruby-mode on emacs. Suppresses --readline.
--simple-prompt
Makes prompts simple.
--noprompt No prompt mode.
--tracer Displays trace for each execution of commands.
--back-trace-limit n
Displays backtrace top n and tail n. The default value is 16.
--irb_debug n Sets internal debug level to n (not for popular use)
ENVIRONMENT
IRBRC
Also irb depends on same variables as ruby(1).
FILES
~/.irbrc Personal irb initialization.
EXAMPLES
% irb
irb(main):001:0> 1 + 1
2
irb(main):002:0> def t(x)
irb(main):003:1> x+1
irb(main):004:1> end
=> nil
irb(main):005:0> t(3)
=> 4
irb(main):006:0> if t(3) == 4
irb(main):007:1> p :ok
irb(main):008:1> end
:ok
=> :ok
irb(main):009:0> quit
%
SEE ALSO ruby(1).
REPORTING BUGS
Security vulnerabilities should be reported via an email to <security@ruby-lang.org>. Reported problems will be published after being fixed.
And you can report other bugs and feature requests via the Ruby Issue Tracking System (http://bugs.ruby-lang.org). Do not report security
vulnerabilities via the system because it publishes the vulnerabilities immediately.
AUTHORS
Written by Keiju ISHITSUKA.
UNIX November 7, 2012 UNIX