06-01-2019
absolutely yes! thank you so much!
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1. Shell Programming and Scripting
I would like to merge data from a reference file and a data file to produce a new output file as shown below.
Reference file,data file,output file
a , b 2 , a 0
b , d 4 , b 2
c , , c 0
d , , d 4
e, , e 0 (3 Replies)
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2. Shell Programming and Scripting
hi frnds
i have 2 files. 1st is dddd and 2nd is ssss
==> dddd <==:
1,charit
2,gilhotra
==> ssss <==:
1,sajan
2,doda
3,hello
and i want o/p ...mean join and vlookup both files
sajan,charit (4 Replies)
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Hi,
I am new to awk/unix and am trying to put together an awk script to perform an action similar to vlookup between the two csv files.
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4. UNIX for Dummies Questions & Answers
Hello experts,
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Hello Everybody
I am looking for vlookup like functionality in Linux since two files I have are very big(1000MB each) and its not opening completely in excel.
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11,12,13
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I need to vlookup and check the server not found.
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server1
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server3
server4
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File1
alias:server1_00,20:f1:0a:25:b5:03:02:90
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alias:server3_00,50:00:09:75:50:0d:bd:da
alias:server4_00,20:f1:0a:25:b5:03:02:93
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Hi everyone,
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while
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Hi,
I want to compare same column in two files, if values match then display the column or display "NA".
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pqr
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aab
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LEARN ABOUT PHP
wincache_lock
WINCACHE_LOCK(3) 1 WINCACHE_LOCK(3)
wincache_lock - Acquires an exclusive lock on a given key
SYNOPSIS
bool wincache_lock (string $key, [bool $isglobal = false])
DESCRIPTION
Obtains an exclusive lock on a given key. The execution of the current script will be blocked until the lock can be obtained. Once the
lock is obtained, the other scripts that try to request the lock by using the same key will be blocked, until the current script releases
the lock by using wincache_unlock(3).
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 get the lock on.
o $isglobal
- Controls whether the scope of the lock is system-wide or local. Local locks are scoped to the application pool in IIS FastCGI
case or to all php processes that have the same parent process identifier.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Using wincache_lock(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_unlock(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_LOCK(3)