time awk '{p=substr($0,155,2)} p ~ "3[19]" {print > p ".txt"}' LOAD.txt &
real 1m50.57s
user 0m23.54s
sys 0m44.26s
wc -l 39.txt 31.txt
32855 39.txt
1182483 31.txt
@ Birei - I'm sorry I wont have perl in the box so not possible to try.
@ Scrutinizer - Do you please explain me the command little bit I'm dump to understand the expert level command.
Code:
time grep '^.\{154\}39' LOAD.txt > 39.txt &
real 2m43.49s
user 0m18.01s
sys 0m17.35s
wc -l 39.txt
32855 39.txt
hey all, im new and my first question is:
say i have a word "blahblah"
how do i get and replace the last letter of the word with say k, so replace the h with a k.
However you cant just replace the h it has to change the LAST LETTER of the word.
Cheers In advance.
:b: (0 Replies)
Hi All
I am sorting a huge file
-rw-r--r-- 1 rama users 448156978 May 13 18:48 102384.temp
$ sort -k 1,40n 102384.temp > 102384.temp1
msgcnt 1468 vxfs: mesg 001: vx_nospace - /dev/vg00/var file system full (1 block extent)
sort: A write error occurred while sorting.
I thought... (3 Replies)
I have a file with data extracted, and need to insert a header with a constant string, say: H|PayerDataExtract
if i use sed, i have to redirect the output to a seperate file like
sed ' sed commands' ExtractDataFile.dat > ExtractDataFileWithHeader.dat
the same is true for awk
and... (10 Replies)
Hi ,
i have files coming in my system which are very huge in MB and GBs, all these files are in a single line, there is no newline character.
I need to get only last 700 bytes of these files, of this i am splitting the files by "split -b 700 filename" but this gives all the splitted... (2 Replies)
Hi i need to compare two fixed length files and produce the differences if any to a seperate file. I have to capture each and every differneces line by line. Ideally my files should not have any differences but if there are any then it should be captured without any miss. Also my files sizes are... (4 Replies)
Hi All,
I have two files as below:
file1 file2
AAAA CCCC,1234,0909
BBBBB AAAA,1234
AAAA DDDD,23536,9090
CCCC
DDDD
EEEEE
I want a out file as below
AAAA,1234
BBBB
AAAA,1234... (5 Replies)
Hi Experts,
I had to edit (a particular value) in header line of a very huge file so for that i wanted to search & replace a particular value on a file which was of 24 GB in Size. I managed to do it but it took long time to complete. Can anyone please tell me how can we do it in a optimised... (7 Replies)
Please help. My file system is 100%, I can't seem to find what is taking so much space. The total hard drive space is 150Gig free but I got nothing now.
I did to this to find the big file but it's taking so much time. Is there any other way?
du -ah / | more
find ./ -size +200M... (3 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)
I have big files (some are >300GB!) that need substitution for some patterns, for example, change Multiple Spaces into Tab. I used this oneliner:sed '1,18s/ \{1,\}/\t/g' infile_big.sam > outfile_big.sambut it seems very slow as the job is still running after 24 hours! In this example, only the... (8 Replies)
Discussion started by: yifangt
8 Replies
LEARN ABOUT PHP
zgrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code:
(-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the
standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep.
If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.
EXIT CODE
2 - An option that is not supported was specified.
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)ZGREP(1)
02-10-2011
