|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
How to make awk command faster?
Post 303003324 by Corona688 on Tuesday 12th of September 2017 11:22:10 AM
09-12-2017
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
One of our servers runs Solaris 8 and does not have "ls -lh" as a valid command. I wrote the following script to make the ls output easier to read and emulate "ls -lh" functionality. The script works, but it is slow when executed on a directory that contains a large number of files. Can anyone make... (10 Replies)
Discussion started by: shew01
10 Replies
2. Shell Programming and Scripting
hii everyone ,
i have a file in which i have line numbers.. file name is file1.txt
aa bb cc "12" qw
xx yy zz "23" we
bb qw we "123249" jh
here 12,23,123249. is the line number
now according to this line numbers we have to print lines from other file named... (11 Replies)
Discussion started by: kumar_amit
11 Replies
3. Red Hat
Hi,
Can any one help me out in solving the problem i have a linux database server it is tooo slow that i am unable to open even the terminial is there any solution to get rid of this problem.How to make this server faster.
Thanks & Regards
Venky (0 Replies)
Discussion started by: venky_vemuri
0 Replies
4. Shell Programming and Scripting
Hi All,
I have some 80,000 files in a directory which I need to rename. Below is the command which I am currently running and it seems, it is taking fore ever to run this command. This command seems too slow. Is there any way to speed up the command. I have have GNU Parallel installed on my... (6 Replies)
Discussion started by: shoaibjameel123
6 Replies
5. Shell Programming and Scripting
Hi all,
In bash scripting, I use to read files:
cat $file | while read line; do
...
doneHowever, it's a very slow way to read file line by line.
E.g. In a file that has 3 columns, and less than 400 rows, like this:
I run next script:
cat $line | while read line; do ## Reads each... (10 Replies)
Discussion started by: AlbertGM
10 Replies
6. Shell Programming and Scripting
Hi,
I have a script below for extracting xml from a file.
for i in *.txt
do
echo $i
awk '/<.*/ , /.*<\/.*>/' "$i" | tr -d '\n'
echo -ne '\n'
done
.
I read about using multi threading to speed up the script.
I do not know much about it but read it on this forum.
Is it a... (21 Replies)
Discussion started by: chetan.c
21 Replies
7. Shell Programming and Scripting
awk "/May 23, 2012 /,0" /var/tmp/datafile
the above command pulls out information in the datafile. the information it pulls is from the date specified to the end of the file.
now, how can i make this faster if the datafile is huge? even if it wasn't huge, i feel there's a better/faster way to... (8 Replies)
Discussion started by: SkySmart
8 Replies
8. Shell Programming and Scripting
Hi,
I have a large number of input files with two columns of numbers.
For example:
83 1453
99 3255
99 8482
99 7372
83 175
I only wish to retain lines where the numbers fullfil two requirements. E.g:
=83
1000<=<=2000
To do this I use the following... (10 Replies)
Discussion started by: s052866
10 Replies
9. Shell Programming and Scripting
I have script like below, who is picking number from one file and and searching in another file, and printing output.
Bu is is very slow to be run on huge file.can we modify it with awk
#! /bin/ksh
while read line1
do
echo "$line1"
a=`echo $line1`
if
then
echo "$num"
cat file1|nawk... (6 Replies)
Discussion started by: mirwasim
6 Replies
10. Shell Programming and Scripting
I have nginx web server logs with all requests that were made and I'm filtering them by date and time.
Each line has the following structure:
127.0.0.1 - xyz.com GET 123.ts HTTP/1.1 (200) 0.000 s 3182 CoreMedia/1.0.0.15F79 (iPhone; U; CPU OS 11_4 like Mac OS X; pt_br)
These text files are... (21 Replies)
Discussion started by: brenoasrm
21 Replies
LEARN ABOUT CENTOS
new
NEW(1) [nmh-1.5] NEW(1) NAME
new - report on folders with new messages fnext - set current folder to next folder with new messages fprev - set current folder to previous folder with new messages unseen - scan new messages in all folders with new messages SYNOPSIS
new [sequences] [-mode mode] [-folders foldersfile] [-version] [-help] fnext is equivalent to new -mode fnext fprev is equivalent to new -mode fprev unseen is equivalent to new -mode unseen DESCRIPTION
New in its default mode produces a one-line-per-folder listing of all folders containing messages in the listed sequences or in the sequences listed in the profile entry "Unseen-Sequence". Each line contains the folder, the number of messages in the desired sequences, and the message lists from the .mh_sequences file. For example: foo 11.* 40-50 bar 380. 760-772 824-828 total 391. The `*' on foo indicates that it is the current folder. The last line shows the total number of messages in the desired sequences. New crawls the folder hierarchy recursively to find all folders, and prints them in lexicographic order. Override this behavior by provid- ing foldersfile containing the pre-sorted list of folders new should check, one per line. In fnext and fprev modes, new instead changes to the next or previous matching folder, respectively. In unseen mode, new executes scan sequences for each matching folder. FILES
$HOME/.mh_profile The user profile PROFILE COMPONENTS
Path: To determine the user's nmh directory Current-Folder: To find the default current folder Unseen-Sequence: The name of the unseen message sequence SEE ALSO
scan(1), mh-format(5) HISTORY
Based on Luke Mewburn's new (http://www.mewburn.net/luke/src/new). MH.6.8 11 June 2012 NEW(1)