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Full Discussion: awk with (if condition)
Top Forums UNIX for Beginners Questions & Answers awk with (if condition) Post 303046309 by sea on Thursday 30th of April 2020 11:22:29 AM
Old 04-30-2020
Quote:
Originally Posted by RudiC
Try this for leading header and sorted data:
Code:
awk 'NR == 1; $4 < 7000 {print | "sort -k4"}' file
Name	tDesignation	tDepartment	tSalary
Thomas	Manager	Sales	5000
Jason	Developer	Technology	5500
Vicky	DBA	Technology	6000

I slightly modified your code...
Was not my first attempt, just one of the... lets do this variant with the current variable... moments...

I have no idea WHY this works, because I wanted to EXclude the 'Name'-line with != and =! just to be sure:
Code:
awk '$1 == Name; $4 < 7000 {print | "sort -k4"}' file.txt
Thomas	Manager		Sales		5000
Jason	Developer	Technology	5500
Vicky	DBA		Technology	6000

EDIT:
Figured:
Code:
awk '$1 ==! "Name"; $4 < 7000 {print | "sort -k4"}' file.txt
Thomas	Manager		Sales		5000
Jason	Developer	Technology	5500
Vicky	DBA		Technology	6000

But I still dont understand why $1 == Name removes the Name/tSalary-line

Last edited by sea; 04-30-2020 at 12:31 PM..
This User Gave Thanks to sea For This Post:
 

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pthread_condattr_init(3T)												 pthread_condattr_init(3T)

NAME
pthread_condattr_init(), pthread_condattr_destroy() - initialize or destroy a condition variable attributes object. SYNOPSIS
PARAMETERS
attr Pointer to the condition variable attributes object to be initialized or destroyed. DESCRIPTION
initializes the condition variable attributes object attr with the default values for all attributes. The attributes object describes a condition variable in detail and is passed to the condition variable initialization function. When a condition variable attributes object is used to initialize a condition variable, the values of the individual attributes determine the characteristics of the new condition variable. Attributes objects act like additional parameters to object initialization. A single attributes object can be used in multiple calls to the function When a condition variable is initialized with an attributes object, the attributes are, in effect, copied into the condition variable. Consequently, any change to the attributes object will not affect any previously initialized condition variables. Once all condition vari- ables needing a specific attributes object have been initialized, the attributes object is no longer needed. The condition variable attributes and their default values are: The default value is If an initialized condition variable attributes object is reinitialized, undefined behavior results. destroys the condition variable attributes object attr. The destroyed condition variable attributes object ceases to exist and its resources are reclaimed. Using attr after it has been destroyed results in undefined behavior. A destroyed condition variable attributes object can be reinitialized using the function Condition variables that have been already initialized using this attributes object are not affected by the destruction of the condition variable attributes object. RETURN VALUE
Upon successful completion, and return zero. Otherwise, an error number is returned to indicate the error (the variable is not set). ERRORS
If any of the following occur, the function returns the corresponding error number: [ENOMEM] There is insufficient memory available in which to initialize the condition variable attributes object. [EINVAL] attr is not a valid condition variable attributes object. For each of the following conditions, if the condition is detected, the function returns the corresponding error number: [EINVAL] attr is not a valid condition variable attributes object. AUTHOR
and were derived from the IEEE POSIX P1003.1c standard. SEE ALSO
pthread_create(3T), pthread_condattr_getpshared(3T), pthread_cond_init(3T). STANDARDS CONFORMANCE
Pthread Library pthread_condattr_init(3T)

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