I have gone through all the threads in the forum and tested out different things. I am trying to split a 3GB file into multiple files. Some files are even larger than this.
For example:
split -l 3000000 filename.txt
This is very slow and it splits the file with 3 million records in each... (10 Replies)
Hi All,
Can someone please help me write a script for the following requirement in awk, grep, sed or perl.
Buuuu xxx bbb
Kmmmm rrr ssss uuuu
Kwwww zzzz ccc
Roooowwww eeee
Bxxxx jjjj dddd
Kuuuu eeeee nnnn
Rpppp cccc vvvv cccc
Rhhhhhhyyyy tttt
Lhhhh rrrrrssssss
Bffff mmmm iiiii
Ktttt... (5 Replies)
Hi experts,Please help me for the below requirement. i have a source file.(lets say contains 50 columns). I am extarcting five columns from the source file by using pattern file. for example input file:--------a,b,c,d,"a,g","v b",s,koutputfile=======a,"a,g","v b",s,kThanks in advance subhendu (2 Replies)
Hi,
I have a data file xyz.dat similar to the one given below,
2345|98|809||x|969|0
2345|98|809||y|0|537
2345|97|809||x|544|0
2345|97|809||y|0|651
9685|98|809||x|321|0
9685|98|809||y|0|357
9685|98|709||x|687|0
9685|98|709||y|0|234
2315|98|809||x|564|0
2315|98|809||y|0|537... (2 Replies)
Hi,
need help in recognizing the pattern of file name. For e.g.
file name 1: <static file prefix>.<store cd>_<YYYYMMDD>.<ext>
file name 2: <static file prefix>_<YYYYMMDD>.<ext>
I want to know that there are 3 dots "." in the file name1 and one dot "." in file name2. How can I know... (3 Replies)
Good day all
I need some helps,
say that I have data like below, each field separated by a tab
DATE NAME ADDRESS
15/7/2012 LX a.b.c
15/7/2012 LX1 a.b.c
16/7/2012 AB a.b.c
16/7/2012 AB2 a.b.c
15/7/2012 LX2 a.b.c... (2 Replies)
Requirement: Need to split a source file say a1.txt which can be of size upto 150 MB into 25 target files each with a max size of 25 MB along with the header line in each target file.
NOTE: Few target files can be empty also ,but 25 files must be generated for 1 source file( I can expect upto... (4 Replies)
Hello,
I want to split a file based on an input list file that contains the lines each split should have + a corresponding file name.
#!/bin/sh
# sed -n 'start_line_#,end_line_#p' my_input_file > lines_extracted_output_file
while read a b c
do
sed -n '$a,$bp' myLarge.file > $c.split... (2 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)
Dear Users,
Appreciate your help if you could help me with splitting a large file > 1 million lines with sed or awk. below is the text in the file
input file.txt
scaffold1 928 929 C/T +
scaffold1 942 943 G/C +
scaffold1 959 960 C/T +... (6 Replies)
Discussion started by: kapr0001
6 Replies
LEARN ABOUT X11R4
mv
MV(1) User Commands MV(1)NAME
mv - move (rename) files
SYNOPSIS
mv [OPTION]... [-T] SOURCE DEST
mv [OPTION]... SOURCE... DIRECTORY
mv [OPTION]... -t DIRECTORY SOURCE...
DESCRIPTION
Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.
Mandatory arguments to long options are mandatory for short options too.
--backup[=CONTROL]
make a backup of each existing destination file
-b like --backup but does not accept an argument
-f, --force
do not prompt before overwriting
-i, --interactive
prompt before overwrite
-n, --no-clobber
do not overwrite an existing file
If you specify more than one of -i, -f, -n, only the final one takes effect.
--strip-trailing-slashes
remove any trailing slashes from each SOURCE argument
-S, --suffix=SUFFIX
override the usual backup suffix
-t, --target-directory=DIRECTORY
move all SOURCE arguments into DIRECTORY
-T, --no-target-directory
treat DEST as a normal file
-u, --update
move only when the SOURCE file is newer than the destination file or when the destination file is missing
-v, --verbose
explain what is being done
-Z, --context
set SELinux security context of destination file to default type
--help display this help and exit
--version
output version information and exit
The backup suffix is '~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX. The version control method may be selected via the --backup
option or through the VERSION_CONTROL environment variable. Here are the values:
none, off
never make backups (even if --backup is given)
numbered, t
make numbered backups
existing, nil
numbered if numbered backups exist, simple otherwise
simple, never
always make simple backups
AUTHOR
Written by Mike Parker, David MacKenzie, and Jim Meyering.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report mv 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 rename(2)
Full documentation at: <http://www.gnu.org/software/coreutils/mv>
or available locally via: info '(coreutils) mv invocation'
GNU coreutils 8.28 January 2018 MV(1)