Hi All,
I'm new to perl,
My requirement is to check if particular file exists.
e.g. filename.txt, filename1.txt, filename2.txt etc
I tried the below code:-
my $var1 = "filename.txt"
if ( -e ($var1 = ~ /file\w/))
{
print "File found \n";
}
else
{ print "File not found \n";
}
... (0 Replies)
Hello,
Despite reading the Pattern Matching chapter in the O'Reilly Sed & Awk book several times and
looking at numerous examples, I cannot seem to get any kind of conditional script to work in my awk scripts!
I am able to do the basic awk and grep script to capture the data but when I do with... (0 Replies)
Hi All ,
I need to extract the strings that are matching with the pattern : CUST.<AnyStringOfAnyLength>.<AnyStringOfAnyLength> from a file and then write all these string into another file.
e.g. If a file SOURCE contains following lines :
IF(CUST.ABCD.EFGH==1) THEN
CUST.ABCD.EFGH =... (7 Replies)
Hi gurus,
A file contains many words in format "ABC.XXXX.XXXX.X.GET.LOG" (X->varying). Now my shell script want this list (only words in formatABC.XXXX.XXXX.X.GET.LOG ) to continue the process. Pls help me.
Thanks,
Poova. (8 Replies)
File having data in following format :
file name : file.txt
--------------------
111111;name1
222222;name2
333333;name3
I want to read this file so that I can split these into two paramaters i.e. 111111 & name1 into two different variables(say value1 & value2).
i.e val1=11111 &... (2 Replies)
Experts,
I am a beginner to Unix Shell Scripting
We have source as a flat file which contains CTRL+F character as the delimiter. We need to count the number of records in the file (CTRL+F) to perform file validation
Following command being used:
awk '{cnt+=gsub(//,"&")}END {print cnt}'... (4 Replies)
Hi!
i'm trying to parse textfiles against a pattern and storing the result in a variable.
The strings i want to get are embraced by and can occur several times in one line, so e.g.
some text anything else endwhat i have so far:
#!/bin/bash
for f in $*
do
exec 3<&0
exec 0<$f
... (2 Replies)
I have file 1 & file 2 with content mentioned below. I want to get the output as shown in file3.
Requirement:
check the content of column 1 & column 2, if value of column 1 in file1 matches with first column of file2 then remaining columns(2&3) of file2 should get replaced, also if value of... (4 Replies)
Hi
I need to do a patten match between files .
I am new to shell scripting and have come up with this so far. It take 50 seconds to process files of 2mb size . I need to tune this code as file size will be around 50mb and need to save time.
Main issue is that I need to search the pattern from... (2 Replies)
Hi expert, Need help in shell script.
a.txt file output is below
i would like to grep 3 line and 1st column value which is admin\22226 only and not full line. i only know admin word as 22226 can come anything with admin\ in file.
also after fetching it i would like to use this... (1 Reply)
Discussion started by: kuljeetpal
1 Replies
LEARN ABOUT OSX
vfs_commit
VFS_COMMIT(8)VFS_COMMIT(8)NAME
vfs_commit - flush dirty data at specified intervals
SYNOPSIS
vfs objects = commit
DESCRIPTION
This VFS module is part of the samba(7) suite.
The vfs_commit VFS module keeps track of the amount of data written to a file and synchronizes it to disk when a specified amount accumu-
lates.
vfs_commit is useful in two circumstances. First, if you have very precious data, the impact of unexpected power loss can be minimized by a
small commit:dthresh value. Secondly, write performance can be improved on some systems by flushing file data early and at regular inter-
vals.
This module is stackable.
OPTIONS
commit:dthresh = BYTES
Synchronize file data each time the specified number of bytes has been written.
The following suffixes may be applied to BYTES:
o K - BYTES is a number of kilobytes
o M - BYTES is a number of megabytes
o G - BYTES is a number of gigabytes
EXAMPLES
Synchronize the file data on the [precious] share after every 512 kilobytes (524288 bytes) of data is written:
[precious]
path = /data/precious
vfs objects = commit
commit:dthresh = 512K
CAVEATS
On some systems, the data synchronization performed by commit may reduce performance.
VERSION
This man page is correct for version 3.0.25 of the Samba suite.
AUTHOR
The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
Source project similar to the way the Linux kernel is developed.
VFS_COMMIT(8)