10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
I have a txt document having a format like this:
DATA1 | DATA2 | DATA3 | 23-JAN-20 23:41:34
DATA1 | DATA2 | DATA3 | 23-JAN-20 23:41:32
DATA1 | DATA2 | DATA3 | 23-JAN-20 23:41:30
DATA1 | DATA2 | DATA3 | 23-JAN-20 22:35:31
DATA1 | DATA2 | DATA3 | 23-JAN-20 22:30:34
DATA1 | DATA2 |... (1 Reply)
Discussion started by: gc_sw
2. Shell Programming and Scripting
I have file of more than 10000 lines.
I want to delete 40 lines after every 20 lines.
e.g from a huge file, i want to delete line no from 34 - 74, then 94 - 134 etc and so on.
Please let me know how i can do it.
Best regards, (11 Replies)
Discussion started by: nehashine
3. UNIX for Advanced & Expert Users
I need a unix command to delete first n (say 100) lines from a log file. I need to delete some lines from the file without using any temporary file. I found sed -i is an useful command for this but its not supported in my environment( AIX 6.1 ). File size is approx 100MB.
Thanks in... (18 Replies)
Discussion started by: unohu
4. UNIX for Advanced & Expert Users
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Discussion started by: krishnix
5. UNIX for Dummies Questions & Answers
I have a file which contains huge data as
PDE 1990 1 9 18 51 28.90 24.7500 95.2800 118.0 6.1 0.0 BURMA
event name: 010990D
time shift: 7.3000
half duration: 5.0000
Mrr: ... (7 Replies)
Discussion started by: reva
6. Shell Programming and Scripting
I know how to get this (the lines that have duplicates) :
sort file | uniq -d
But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem. (3 Replies)
Discussion started by: necroman08
7. UNIX for Dummies Questions & Answers
hello... I have a file with a list of filepaths in it, like so:
delMe.txt (files to be deleted)
Now here's what I'm trying to do. I want any lines in the above file (delMe.txt) to be deleted out of the... (3 Replies)
Discussion started by: jzacsh
8. Shell Programming and Scripting
I m trying to delete two lines at a time in file called 123.txt. Im using sed and based on line numbers i m deleting it and writing it to another file. Follwing i have done.
cat 123.txt | sed '1,5 d' > new
I want to delete line no 1 and 5 at a time, for that i m using... (6 Replies)
Discussion started by: naree
in my solaris 9 the file- /var/adm/messeages growin too first. by 24 hours 40MB. And always giving the below messages--
bash-2.05# tail -f messages
Nov 9 16:35:38 ME1 last message repeated 1 time
Nov 9 16:35:38 ME1 ftpd: wtmpx /var/adm/wtmpx No such file or directory
Nov 9... (7 Replies)
Discussion started by: thepurple
10. UNIX for Dummies Questions & Answers
how can i delete all lines in file by using "vi" ? (6 Replies)
Discussion started by: strok
MTAIL(1) User Commands MTAIL(1)
mtail - tail variant designed for web developers monitoring logfiles
mtail [options] <file>...
MonkeyTail allows a user to tail multiple files on both local and remote hosts and clearly marks inactivity by putting 5 newlines in the
output whenever a pause in output over 3 seconds is detected.
MonkeyTail is implemented a fairly simple wrapper script around standard tail, ssh, and sudo.
-q Quiet mode
-n Output the last N lines of each file before tailing (defaults to 0)
Files to tail.
These can specified in the following ways:
- expands the group (from .mtailrc) to a list of
files to tail
- tails a local file.
+<filename> - attempts to sudo and tail a local file (will
prompt for pwd if required).
- attempts to invoke tail via ssh on a remote
+<remotehost>:<filename> - attempts to invoke sudo tail via ssh on a
remote host (will prompt for pwd if required).
Martyn Smith <firstname.lastname@example.org>
mtail May 2008 MTAIL(1)