07-16-2009
Can you please explain jsut a little bit how this works for my understanding?
I can see that it will look under current directory and subdirectories for files with size over 5M..what is -type f do?. I am fairly new to unix...but just some general idea would be fine.
Thanks.
---------- Post updated at 05:55 PM ---------- Previous update was at 03:26 PM ----------
Also it echo all the files in the directory (by splitting) and I know there is only one that is over 5MB. However, if I change the size in find to +5242800c (bytes) then it echo the right file. So what could be wrong with +5M ?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi Friends,
Below is my requirement. I have a file with the below structure.
0001A1....
0001B1..
....
0001L1
0002A1
0002B1
......
0002L1
..
the first 4 characters are the sequence numbers for a record, A record will start with A1 and end with L1 with same sequence number. Now the... (2 Replies)
Discussion started by: diva_thilak
2 Replies
2. Shell Programming and Scripting
Hello, I have a large file (2GB) that I would like to split based on pattern and size.
I've used the following command to split the file (token is "HELLO")
awk '/HELLO/{i++}{print > "file"i}' input.txt
and the output is similar to the following (i included filesize in KB):
10 ... (2 Replies)
Discussion started by: jl487
2 Replies
3. Shell Programming and Scripting
Hi,
I've one requirement. I have to split one comma delimited file into multiple files based on one of the column values.
How can I achieve this Unix
Here is the sample data. In this case I have split the files based on date column(c4)
Input file
c1,c2,c3,c4,c5... (1 Reply)
Discussion started by: manasvi24
1 Replies
4. Shell Programming and Scripting
I need to split a file if it is over 2GB in size (or any size), preferably split on the lines. I have figured out how to get the file size using awk, and I can split the file based on the number of lines (which I got with wc -l) but I can't figure out how to connect them together in the script.
... (6 Replies)
Discussion started by: ssemple2000
6 Replies
5. Shell Programming and Scripting
Dear All,
I have the following file tabulated:
ID distanceTSS score
8434 571269 10
10122 393912 9
7652 6 10
4863 1451 9
8419 39 2
9363 564 21
9333 7714 22
9638 8334 9
1638 1231 11
10701 918 1000
6587 32056 111
What I would like to do is the following, create 100 new files based... (5 Replies)
Discussion started by: paolo.kunder
5 Replies
6. Shell Programming and Scripting
Hi all.
I've tried searching the web but could not find similar problem to mine.
I have one large file to be splitted into several files based on the matching pattern found in each row.
For example, let's say the file content:
... (13 Replies)
Discussion started by: aimy
13 Replies
7. Shell Programming and Scripting
I have a file that is about 7 GB in size. The requirement is I should split the file equally in such a way that the size of the split files is less than 2Gb. If the file is less than 2gb, than nothing needs to be done. ( need to done using shell script)
Thanks, (4 Replies)
Discussion started by: rudoraj
4 Replies
8. UNIX for Dummies Questions & Answers
Hi All,
I have a UNIX script which reads "PxyType" (read PxyType) as input from user and a file (eg : "File.json") with the list all PxyType's.
Based on the user input for "PxyType" in "File.json", I want to redirect each matched line to a different file ("File1,2,3,..json").
Can you... (7 Replies)
Discussion started by: Deena1984
7 Replies
9. Shell Programming and Scripting
I have a huge file (around 4-5 GB containing 20 million rows) which has text like:
<EOFD>11<EOFD>22<EORD>2<EOFD>2222<EOFD>3333<EORD>3<EOFD>44<EOFD>55<EORD>66<EOFD>888<EOFD>9999<EORD>
Actually above is an extracted file from a Sql Server with each field delimited by <EOFD> and each row ends... (8 Replies)
Discussion started by: amvip
8 Replies
10. UNIX for Beginners Questions & Answers
Hi,
I have a directory in Unix and there are folders available in the directory.
Files are created on different month and now i have a requirement to calculate size of the folder on month basis.
Is there any Unix command to check this please??
Thanks (6 Replies)
Discussion started by: Nivas
6 Replies
LEARN ABOUT MINIX
truncate
TRUNCATE(1) User Commands TRUNCATE(1)
NAME
truncate - shrink or extend the size of a file to the specified size
SYNOPSIS
truncate OPTION... FILE...
DESCRIPTION
Shrink or extend the size of each FILE to the specified size
A FILE argument that does not exist is created.
If a FILE is larger than the specified size, the extra data is lost. If a FILE is shorter, it is extended and the extended part (hole)
reads as zero bytes.
Mandatory arguments to long options are mandatory for short options too.
-c, --no-create
do not create any files
-o, --io-blocks
treat SIZE as number of IO blocks instead of bytes
-r, --reference=RFILE
base size on RFILE
-s, --size=SIZE
set or adjust the file size by SIZE bytes
--help display this help and exit
--version
output version information and exit
The SIZE argument is an integer and optional unit (example: 10K is 10*1024). Units are K,M,G,T,P,E,Z,Y (powers of 1024) or KB,MB,... (pow-
ers of 1000).
SIZE may also be prefixed by one of the following modifying characters: '+' extend by, '-' reduce by, '<' at most, '>' at least, '/' round
down to multiple of, '%' round up to multiple of.
AUTHOR
Written by Padraig Brady.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report truncate translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
dd(1), truncate(2), ftruncate(2)
Full documentation at: <http://www.gnu.org/software/coreutils/truncate>
or available locally via: info '(coreutils) truncate invocation'
GNU coreutils 8.28 January 2018 TRUNCATE(1)