Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Redirect output to the same input file in awk Post 302936350 by stew on Wednesday 25th of February 2015 01:54:52 AM
Old 02-25-2015
Redirect output to the same input file in awk

Hi,

I want to compare a value from test file and redirect the o/p value to the same file

Code:
input file
250     32000   32      128

Below is my code
Code:
 
awk '{ if ($1 < "300") print $1 > /tmp/test}' test

want to compare 250 < 300 then print 300 to the same place

below is the required output
Code:
 
output file
300     32000   32      128

But the value (300) is not updating
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Input file redirect in output path and want name as inputfilename_new.txt

not required this time (6 Replies)
Discussion started by: Sandeep_Malik
6 Replies

2. Shell Programming and Scripting

awk should output if one input file doesnt have matching key

nawk -F, 'FNR==NR{a= $3 ;next} $2 in a{print $1, 'Person',$2, a}' OFS=, filea fileb Input filea Input fileb output i am getting : (2 Replies)
Discussion started by: pinnacle
2 Replies

3. Shell Programming and Scripting

Pass input and output file as parameter to awk script

Hi, i am new to awk. I am using csv2pipe script(shown below) BEGIN { FS=SUBSEP; OFS="|" } { result = setcsv($0, ",") print } # setcsv(str, sep) - parse CSV (MS specification) input # str, the string to be parsed. (Most likely $0.) # sep, the separator between the values. # #... (6 Replies)
Discussion started by: bhaskarjha178
6 Replies

4. Programming

Redirect input and output to a shell script?

Dear All: I am trying to do something that (I thought) was relatively straightforward, but my code snippet does not seem to work. Any suggestions? Thank you Sincerely yours Misha Koshelev #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <errno.h> #include... (0 Replies)
Discussion started by: misha680
0 Replies

5. Shell Programming and Scripting

redirect an awk string output to a script input with pipes

Hi, I have a function in a bash script that returns a string after some operations using awk. The following code returns 555 $VARIABLE="EXAMPLE" get_number $VARIABLE this value I'd like to pass it as a second argument of another script with the following usage myscript.sh <param1>... (7 Replies)
Discussion started by: rid
7 Replies

6. UNIX for Advanced & Expert Users

Complex Input/Output Redirect

Hi All, Sorry if the title is not good but I did not know how to explain with only some words! What I meant is: I have a unix command built from a private application vendor that when executed it prompts for two entries by the keyboard, let's say, for example: ... (1 Reply)
Discussion started by: felipe.vinturin
1 Replies

7. Shell Programming and Scripting

AWK Script to convert input file(s) to output file

Hi All, I am hoping someone can help me with some scripting I need to complete using AWK. I'm trying to process multiple fixed files to generate one concatenated fixed file in a standard format. The Input file is:- aaaa bbbbb ccccc 1 xxxx aaa bbb aaaa bbbbb ccccc 2 abcd aaa CCC... (9 Replies)
Discussion started by: jason_v_brown
9 Replies

8. Shell Programming and Scripting

Read file from input and redirect to output file

Hi , i am having an file which contains 5 file_name data, i need to read the file name and will perform certain operation and generate out file names with named as 5 individual file_names for eg: file.txt contains file_name1.txt|hai file_name2.txt|bye file_name3.txt|how... (3 Replies)
Discussion started by: rohit_shinez
3 Replies

9. UNIX for Dummies Questions & Answers

awk - Rename output file, after processing, same as input file

I have one input file ABC.txt and one output DEF.txt. After the ABC is processed and created output, I want to rename ABC.txt to ABC.orig and DEF to ABC.txt. Currently when I am doing this, it does not process the input file as it cannot read and write to the same file. How can I achieve this? ... (12 Replies)
Discussion started by: High-T
12 Replies

10. Shell Programming and Scripting

awk to reformat output if input file is empty, but not if file has data in it

The below awk improved bu @MadeInGermany, works great as long as the input file has data in it in the below format: input chrX 25031028 25031925 chrX:25031028-25031925 ARX 631 18 chrX 25031028 25031925 chrX:25031028-25031925 ARX 632 14... (3 Replies)
Discussion started by: cmccabe
3 Replies
Prophet::Test(3pm)					User Contributed Perl Documentation					Prophet::Test(3pm)

   set_editor($code)
       Sets the subroutine that Prophet should use instead of "Prophet::CLI::Command::edit_text" (as this routine invokes an interactive editor)
       to $code.

   set_editor_script SCRIPT
       Sets the editor that Proc::InvokeEditor uses.

       This should be a non-interactive script found in t/scripts.

   import_extra($class, $args)
   in_gladiator($code)
       Run the given code using Devel::Gladiator.

   repo_path_for($username)
       Returns a path on disk for where $username's replica is stored.

   repo_uri_for($username)
       Returns a file:// URI for $USERNAME'S replica (with the correct replica type prefix).

   replica_uuid
       Returns the UUID of the test replica.

   database_uuid
       Returns the UUID of the test database.

   replica_last_rev
       Returns the sequence number of the last change in the test replica.

   as_user($username, $coderef)
       Run this code block as $username.  This routine sets up the %ENV hash so that when we go looking for a repository, we get the user's repo.

   replica_uuid_for($username)
       Returns the UUID of the given user's test replica.

   database_uuid_for($username)
       Returns the UUID of the given user's test database.

   ok_added_revisions( { CODE }, $numbers_of_new_revisions, $msg)
       Checks that the given code block adds the given number of changes to the test replica. $msg is optional and will be printed with the test
       if given.

   serialize_conflict($conflict_obj)
       Returns a simple, serialized version of a Prophet::Conflict object suitable for comparison in tests.

       The serialized version is a hash reference containing the following keys:
	   meta => { original_source_uuid => 'source_replica_uuid' }
	   records => { 'record_uuid' =>
			  { change_type => 'type',
			    props => { propchange_name => { source_old => 'old_val',
							    source_new => 'new_val',
							    target_old => 'target_val',
							  }
				     }
			  },
			'another_record_uuid' =>
			  { change_type => 'type',
			    props => { propchange_name => { source_old => 'old_val',
							    source_new => 'new_val',
							    target_old => 'target_val',
							  }
				     }
			  },
		      }

   serialize_changeset($changeset_obj)
       Returns a simple, serialized version of a Prophet::ChangeSet object suitable for comparison in tests (a hash).

   run_command($command, @args)
       Run the given command with (optionally) the given args using a new Prophet::CLI object. Returns the standard output of that command in
       scalar form or, in array context, the STDOUT in scalar form *and* the STDERR in scalar form.

       Examples:

	   run_command('create', '--type=Foo');

   load_record($type, $uuid)
       Loads and returns a record object for the record with the given type and uuid.

   as_alice CODE, as_bob CODE, as_charlie CODE, as_david CODE
       Runs CODE as alice, bob, charlie or david.

perl v5.10.1							    2009-09-02							Prophet::Test(3pm)
All times are GMT -4. The time now is 09:42 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy