Sponsored Content
Top Forums Shell Programming and Scripting Swapping or switching 2 lines using sed Post 302248381 by Franklin52 on Friday 17th of October 2008 12:49:17 PM
Old 10-17-2008
To swap line 3 with line 10:

Code:
#!/bin/sh
 
line=3
line1=10

awk -v var="$line" -v var1="$line1" 'NR==var {
  s=$0
  for(i=var+1;i<var1;i++){
    getline;s=$0"\n"s
  }
  getline;print;print s
  next
}1' file

Regards
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Swapping lines beginning with certain words using sed/awk

I have a large file which reads like this: fixed-address 192.168.6.6 { hardware ethernet 00:22:64:5b:db:b1; host X; } fixed-address 192.168.6.7 { hardware ethernet 00:22:64:5b:db:b3; host Y; } fixed-address 192.168.6.8 { hardware ethernet 00:22:64:5b:db:b4; host A; }... (4 Replies)
Discussion started by: ksk
4 Replies

2. Shell Programming and Scripting

swapping lines that match a condition using sed, perl or the like

I'm a bit new to regex and sed/perl stuff, so I would like to ask for some advice. I have tried several variations of scripts I've found on the net, but can't seem to get them to work out just right. I have a file with the following information... # Host 1 host 45583 { filename... (4 Replies)
Discussion started by: TheBigAmbulance
4 Replies

3. Shell Programming and Scripting

awk: switching lines and concatenating lines?

Hello, I have only recently begun with awk and need to write this: I have an input consisting of a couple of letters, a space and a number followed by various other characters: fiRcQ 9( ) klsRo 9( ) pause fiRcQ 9( ) pause klsRo continue 1 aPLnJ 62( ) fiRcQ continue 5 ... and so on I... (7 Replies)
Discussion started by: Borghal
7 Replies

4. Homework & Coursework Questions

Swapping Fields with Sed

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: The assignment is to convert a text table to csv format. I've got the cleaning up done, but I need to swap two... (0 Replies)
Discussion started by: VoiceInADesert
0 Replies

5. Shell Programming and Scripting

Swapping three lines

I have some text: <date>some_date</date> <text>some_text</text> <name>some_name<name> and I want to transform it to smthng like that: some_name on some_date: some_text I've tried sed: sed 's/<text>\(.*\)<\/text> <name>\(.*\)<\/name>/\2 - \1/' but it says unterminated... (13 Replies)
Discussion started by: dsjkvf
13 Replies

6. Shell Programming and Scripting

Switching lines

Hi I'm quite new with linux. Very simple, I need to swap every 2 lines in a file. Example INPUT: a a a b b b x x x y y y s s s t t t OUTPUT: b b b a a a y y y x x x t t t (5 Replies)
Discussion started by: hernand
5 Replies

7. Shell Programming and Scripting

AWK swapping fields on different lines

Hi All, Sorry if this question has been posted elsewhere, but I'm hoping someone can help me! Bit of an AWK newbie here, but I'm learning (slowly!) I'm trying to cobble a script together that will save me time (is there any other kind?), to swap two fields (one containing whitespace), with... (5 Replies)
Discussion started by: Bravestarr
5 Replies

8. Shell Programming and Scripting

ksh sed - Extract specific lines with mulitple occurance of interesting lines

Data file example I look for primary and * to isolate the interesting slot number. slot=`sed '/^primary$/,/\*/!d' filename | tail -1 | sed s'/*//' | awk '{print $1" "$2}'` Now I want to get the Touch line for only the associate slot number, in this case, because the asterisk... (2 Replies)
Discussion started by: popeye
2 Replies

9. Shell Programming and Scripting

Swapping the 1st 4 lines only

How can you swap the first 4 line only, the rest will stay the same. thanks #!/bin/sh line=4 awk -v var="$line" 'NR==var { s=$0 getline;s=$0"\n"s getline;print;print s next }1' fileko.tx . desired output: (8 Replies)
Discussion started by: invinzin21
8 Replies

10. Shell Programming and Scripting

Swapping lines

Hi there, I have a text that I'm trying to format into something more readable. However, I'm stuck in the last step. I've searched and tried things over the internet with no avail. OS: Mac After parsing the original text that I won't put here, I managed to get something like this, but this... (8 Replies)
Discussion started by: Kibou
8 Replies
VAR_EXPORT(3)								 1							     VAR_EXPORT(3)

var_export - Outputs or returns a parsable string representation of a variable

SYNOPSIS
mixed var_export (mixed $expression, [bool $return = false]) DESCRIPTION
var_export(3) gets structured information about the given variable. It is similar to var_dump(3) with one exception: the returned represen- tation is valid PHP code. PARAMETERS
o $expression - The variable you want to export. o $return - If used and set to TRUE, var_export(3) will return the variable representation instead of outputting it. RETURN VALUES
Returns the variable representation when the $return parameter is used and evaluates to TRUE. Otherwise, this function will return NULL. NOTES
Note When the $return parameter is used, this function uses internal output buffering so it cannot be used inside an ob_start(3) callback function. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.1.0 | | | | | | | Possibility to export classes and arrays con- | | | taining classes using the __set_state() magic | | | method. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 var_export(3) Examples <?php $a = array (1, 2, array ("a", "b", "c")); var_export($a); ?> The above example will output: array ( 0 => 1, 1 => 2, 2 => array ( 0 => 'a', 1 => 'b', 2 => 'c', ), ) <?php $b = 3.1; $v = var_export($b, true); echo $v; ?> The above example will output: 3.1 Example #2 Exporting classes since PHP 5.1.0 <?php class A { public $var; } $a = new A; $a->var = 5; var_export($a); ?> The above example will output: A::__set_state(array( 'var' => 5, )) Example #3 Using __set_state() (since PHP 5.1.0) <?php class A { public $var1; public $var2; public static function __set_state($an_array) { $obj = new A; $obj->var1 = $an_array['var1']; $obj->var2 = $an_array['var2']; return $obj; } } $a = new A; $a->var1 = 5; $a->var2 = 'foo'; eval('$b = ' . var_export($a, true) . ';'); // $b = A::__set_state(array( // 'var1' => 5, // 'var2' => 'foo', // )); var_dump($b); ?> The above example will output: object(A)#2 (2) { ["var1"]=> int(5) ["var2"]=> string(3) "foo" } NOTES
Note Variables of type resource couldn't be exported by this function. Note var_export(3) does not handle circular references as it would be close to impossible to generate parsable PHP code for that. If you want to do something with the full representation of an array or object, use serialize(3). Warning When var_export(3) exports objects, the leading backslash is not included in the class name of namespaced classes for maximum com- patibility. SEE ALSO
print_r(3), serialize(3), var_dump(3). PHP Documentation Group VAR_EXPORT(3)
All times are GMT -4. The time now is 01:58 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy