06-05-2008
comparing files - adding/subtracting/formating columns
I have two files:
file1.txt:
FS Total Used Free Used%
/u01 10000 8000 2000 80%
/u02 10000 8000 2000 80%
/u03 10000 8000 2000 80%
/u04 10000 8000 2000 80%
/u05 10000 8000 2000 80%
/u06 10000 8000 2000 80%
/u07 10000 8000 2000 80%
/u10 10000 5000 5000 50%
file2.txt:
FS Adj
/u01 1,500
/u05 500
/u10 2,500
I would like to compare them using the first column in each file and create an output from both that looks like the following:
FS Total Used+Adj Free-Adj (Used+Adj)/Total
--------- -------- --------- --------- ---------
/u01 10,000 9,500 500 95%
/u02 10,000 8,000 2,000 80%
/u03 10,000 8,000 2,000 80%
/u04 10,000 8,000 2,000 80%
/u05 10,000 8,500 1,500 85%
/u06 10,000 8,000 2,000 80%
/u07 10,000 7,500 2,500 75%
Please note that all lines from file1.txt are listed, and column "adj" of file2.txt is added to column "Used" and subtracted from column "Free" of file1.txt only if there is a match.
I was able to produce this report only after loading these files into a database but I am sure I can do it using shell scripting with your help.
Thanks,
Omer
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LEARN ABOUT PHP
posix_setuid
POSIX_SETUID(3) 1 POSIX_SETUID(3)
posix_setuid - Set the UID of the current process
SYNOPSIS
bool posix_setuid (int $uid)
DESCRIPTION
Set the real user ID of the current process. This is a privileged function that needs appropriate privileges (usually root) on the system
to be able to perform this function.
PARAMETERS
o $uid
- The user id.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
posix_setuid(3) example
This example will show the current user id and then set it to a different value.
<?php
echo posix_getuid()."
"; //10001
echo posix_geteuid()."
"; //10001
posix_setuid(10000);
echo posix_getuid()."
"; //10000
echo posix_geteuid()."
"; //10000
?>
SEE ALSO
posix_setgid(3), posix_seteuid(3), posix_getuid(3), posix_geteuid(3).
PHP Documentation Group POSIX_SETUID(3)