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Top Forums Shell Programming and Scripting Help awking a 'head -1 file.txt' input Post 302401429 by tmf33uk on Saturday 6th of March 2010 04:46:52 AM
Old 03-06-2010
Hi turk541,

Your suggestion worked, thanks! Smilie)

I have tested that if the number is matched it prints, and if it doesn´t, then it doesn´t print.

However, as the 4466 number could change on each run of the script, I have replaced the number for variable $pthread, which is defined a few lines up. Now this line gives me errors:

Code:
awk: Field  is not correct.
 The input line number is 1.
 The source line number is 1.

My line is now:
Code:
echo $HEAD_FILE | awk '$14 == $pthread {print $0}'

I have tried ${pthread} also, but with the same error.. Smilie(

T.

Last edited by Scott; 03-06-2010 at 07:02 AM.. Reason: Code tags please...
 

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pthread.h(3HEAD)						      Headers							  pthread.h(3HEAD)

NAME
pthread.h, pthread - threads SYNOPSIS
#include <pthread.h> DESCRIPTION
The <pthread.h> header defines the following symbols: PTHREAD_BARRIER_SERIAL_THREAD PTHREAD_CANCEL_ASYNCHRONOUS PTHREAD_CANCEL_ENABLE PTHREAD_CANCEL_DEFERRED PTHREAD_CANCEL_DISABLE PTHREAD_CANCELED PTHREAD_COND_INITIALIZER PTHREAD_CREATE_DETACHED PTHREAD_CREATE_JOINABLE PTHREAD_EXPLICIT_SCHED PTHREAD_INHERIT_SCHED PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_ERRORCHECK PTHREAD_MUTEX_INITIALIZER PTHREAD_MUTEX_NORMAL PTHREAD_MUTEX_RECURSIVE PTHREAD_ONCE_INIT PTHREAD_PRIO_INHERIT PTHREAD_PRIO_NONE PTHREAD_PRIO_PROTECT PTHREAD_PROCESS_SHARED PTHREAD_PROCESS_PRIVATE PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_SYSTEM The types listed below are defined as described in <sys/types.h>. See types.h(3HEAD). pthread_attr_t pthread_barrier_t pthread_barrierattr_t pthread_cond_t pthread_condattr_t pthread_key_t pthread_mutex_t pthread_mutexattr_t pthread_once_t pthread_rwlock_t pthread_rwlockattr_t pthread_spinlock_t pthread_t ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
sched.h(3HEAD), time.h(3HEAD), types.h(3HEAD), pthread_attr_getguardsize(3C), pthread_attr_init(3C), pthread_attr_setscope(3C), pthread_cancel(3C), pthread_cleanup_pop(3C), pthread_cond_init(3C), pthread_cond_signal(3C), pthread_cond_wait(3C), pthread_con- dattr_init(3C), pthread_create(3C), pthread_detach(3C), pthread_equal(3C), pthread_exit(3C), pthread_getconcurrency(3C), pthread_getsched- param(3C), pthread_join(3C), pthread_key_create(3C), pthread_key_delete(3C), pthread_mutex_init(3C), pthread_mutex_lock(3C), pthread_mutex_setprioceiling(3C), pthread_mutexattr_init(3C), pthread_mutexattr_init(3C), pthread_mutexattr_init(3C), pthread_mutex- attr_gettype(3C), pthread_mutexattr_getprotocol(3C), pthread_once(3C), pthread_rwlock_init(3C), pthread_rwlock_rdlock(3C), pthread_rwlock_unlock(3C), pthread_rwlock_wrlock(3C), pthread_rwlockattr_getpshared(3C), pthread_rwlockattr_init(3C), pthread_self(3C), pthread_setcancelstate(3C), pthread_setspecific(3C), attributes(5), standards(5) SunOS 5.10 9 Sep 2004 pthread.h(3HEAD)
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