UPDATE(8) BSD System Manager's Manual UPDATE(8)NAME
update -- flush internal filesystem caches to disk frequently
SYNOPSIS
update
DESCRIPTION
The update command helps protect the integrity of disk volumes by flushing volatile cached filesystem data to disk at thirty second inter-
vals. Update uses the sync(2) function call to do the task.
Update is commonly invoked at startup time by rc(8) when the system goes multi-user.
SEE ALSO sync(2), fsck(8), init(8), rc(8), sync(8)BUGS
It is possible on some systems that a sync occurring simultaneously with a crash may cause file system damage. See fsck(8).
HISTORY
An update command appeared in Version 6 AT&T UNIX.
BSD April 19, 1994 BSD
I have followed instructions to get the jdk for sparc, 1.3 loaded on this sparc workstation machine. I used a tar file and everything seemed to go fine. The usr/j2se directory was created with all the subdirectories and java files. However, attempting to run Java commands fails with a file not... (18 Replies)
Hi,
I am trying to update a MASTER file by a NEW file which may contain fewer records.
The update should use a key (2 first fields), here is a senario:
MASTER:
a;b;0
a;c;0
a;d;0
NEW:
a;c;1
the result should be:
a;b;0
a;c;1
a;d;0
can you recommend me a way to do it?
10x
Y.N. (25 Replies)
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Case:
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csv file has two column/fields with comma delimited data.
Here is what i need (explained way)
CSV file:
field1 | field2
"hello","byebye"
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Hi,
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Hello,
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Hi All,
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file1
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Dears,
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mv the file to other directory
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Hey,
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