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Top Forums Shell Programming and Scripting Iterating over a list using awk, when variable Post 302582742 by dude2cool on Saturday 17th of December 2011 08:56:25 PM
Old 12-17-2011
Try this:


$
Code:
gawk 'NR==FNR{ a[$1] += $3; b[$1]++} NR!=FNR{ for(key in a) {if($1==key)print key,a[key]/b[key]}}' /tmp/1 /tmp/2

Mam189 72.4167
Mam426 78.6133

I used the following sample files:

Quote:
~ $ cat /tmp/1
Mam189 Mam329 84.07
Mam189 Mam82 66.37
Mam189 Mam83 66.81
Mam82 Mam487 71.24
Mam82 Mam484 70.80
Mam82 Mam150 73.89
Mam426 Mam181 78.32
Mam426 Mam264 78.76
Mam426 Mam485 78.76

~ $ cat /tmp/2
Mam189
Mam426
This User Gave Thanks to dude2cool For This Post:
 

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WINCACHE_UNLOCK(3)							 1							WINCACHE_UNLOCK(3)

wincache_unlock - Releases an exclusive lock on a given key

SYNOPSIS
bool wincache_unlock (string $key) DESCRIPTION
Releases an exclusive lock that was obtained on a given key by using wincache_lock(3). If any other process was blocked waiting for the lock on this key, that process will be able to obtain the lock. Warning Using of the wincache_lock(3) and wincache_unlock(3) can cause deadlocks when executing PHP scripts in a multi-process environment like FastCGI. Do not use these functions unless you are absolutely sure you need to use them. For the majority of the operations on the user cache it is not necessary to use these functions. PARAMETERS
o $key - Name of the key in the cache to release the lock on. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 Using wincache_unlock(3) <?php $fp = fopen("/tmp/lock.txt", "r+"); if (wincache_lock("lock_txt_lock")) { // do an exclusive lock ftruncate($fp, 0); // truncate file fwrite($fp, "Write something here "); wincache_unlock("lock_txt_lock"); // release the lock } else { echo "Couldn't get the lock!"; } fclose($fp); ?> SEE ALSO
wincache_lock(3), wincache_ucache_set(3), wincache_ucache_get(3), wincache_ucache_delete(3), wincache_ucache_clear(3), win- cache_ucache_exists(3), wincache_ucache_meminfo(3), wincache_ucache_info(3), wincache_scache_info(3). PHP Documentation Group WINCACHE_UNLOCK(3)
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