How to quickly substitute pattern within certain range of a huge file?
I have big files (some are >300GB!) that need substitution for some patterns, for example, change Multiple Spaces into Tab. I used this oneliner:
but it seems very slow as the job is still running after 24 hours! In this example, only the first 18 rows need be changed, and the rest is untouched.
Is there any better way to do the job quickly? I'm using GNU bash, version 4.4.12(1)-release (x86_64-pc-linux-gnu) on Linux 4.9.0-4-amd64 #1 SMP Debian 4.9.65-3+deb9u1 (2017-12-23) x86_64 GNU/Linux.
Thanks a lot!
Write a nawk script that will produce the following report:
***FIRST QUARTERLY REPORT***
***CAMPAIGN 2004 CONTRIBUTIONS***
-------------------------------------------------------------------------
NAME PHONE Jan | ... (5 Replies)
I want to print between the range two patterns if a particular pattern is present in between the two patterns. I am new to Unix. Any help would be greatly appreciated.
e.g.
Pattern1
Bombay
Calcutta
Delhi
Pattern2
Pattern1
Patna
Madras
Gwalior
Delhi
Pattern2
Pattern1... (2 Replies)
Hi guys, trying to replace a '#' with a ' ' (space) but only between the brackets '(' and ')'
N="text1#text2#text3(var1#var2#var3)"
N=`echo $N |sed '/(/,/) s/#. //'`
echo $N
Looking for an output of "text1#text2#text3(var1 var2 var3)"
Any ideas? (15 Replies)
I've a file say having
line 1
line 2
(NP
line 3
line 4
line 5)
line 6
I want to combine lines starting from (NP and ending with ) then it will look like
line 1
line 2
(NP line3 line4 line5)
line 6
I tried using sed '/(NP/,/)$/ s/\n/ /' but it's not working. Any help please?
... (8 Replies)
Still trying to get the basics down and I would like a different solution to what I'm currently doing and a better understanding of why it's happening. I've written a simple backup script that tars individual directories and then dumps them to a NFS drive. STDERR is being dumped into a process... (2 Replies)
Hi Experts,
I've issue with the huge file.
My requirement is I need to search a pattern between the 155-156 position and if its match's to 31 or 36 then need to route that to a new separate files.
The main file has around 1459328 line and 2 GB in size. I tired with the below code which take... (9 Replies)
Hi Everyone!
I really appreciate all of your help, I'm learning so much, can't wait until I get good enough to start answering questions!
I have a problem ... from one large file, I'd like to create multiple new files for each pattern block
beginning with /^ISA/
ending with /^IEA/
... (2 Replies)
Hi,
I have a Huge 7 GB file which has around 1 million records, i want to split this file into 4 files to contain around 250k messages each.
Please help me as Split command cannot work here as it might miss tags..
Format of the file is as below
<!--###### ###### START-->... (6 Replies)
Hi all,
I have been searching all over Google but I am unable to find a solution for a particular result that I am trying to achieve.
Consider the following input:
1
2
3
4
5
B4Srt1--Variable-0000
B4Srt2--Variable-1111
Srt
6
7
8
9
10
End (3 Replies)
I have config file like this:
server_name xx opt1 opt2 opt3
suboptions1
#suboptions - disabled
suboptions2 pattern
suboptions3
server_name yy opt1 opt2 opt3
suboptions1 pattern
#suboptions - disabled
suboptions2
So basically I want to extract the server... (1 Reply)
Discussion started by: nemesis911
1 Replies
LEARN ABOUT SUSE
set_color
set_color(1) fish set_color(1)NAME
set_color - set_color - set the terminal color
set_color - set the terminal color
Synopsis
set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]
Description
Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
cyan, white and normal.
o -b, --background Set the background color
o -c, --print-colors Prints a list of all valid color names
o -h, --help Display help message and exit
o -o, --bold Set bold or extra bright mode
o -u, --underline Set underlined mode
o -v, --version Display version and exit
Calling set_color normal will set the terminal color to whatever is the default color of the terminal.
Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
font color, while set_color --bold white will result in a white font color.
Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.
set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
ncurses and recompile fish against it in order to fix this issue.
Version 1.23.1 Sun Jan 8 2012 set_color(1)