07-13-2016
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I have this problem of separating 10 consecutive lines from a file, say starting from 21 to 30... I have used a filter like this..
head -n 30 myfile | tail -n 10
Is there a simpler way than this? (2 Replies)
Discussion started by: Vishnu
2 Replies
2. Shell Programming and Scripting
Hi Folks
Probably an easy one here but how do I get a sequence to get used as mentioned. For example in the following I want to automatically create files that have a 2 digit number at the end of their names:
m@pyhead:~$ for x in $(seq 00 10); do touch file_$x; done
m@pyhead:~$ ls file*... (2 Replies)
Discussion started by: amadain
2 Replies
3. Shell Programming and Scripting
We have very large transaction logs that have transactions which start with a line that starts with 'Begin :' and ends with a line that starts with 'End :'. For most transactions there is valid data between those two lines.
I am trying to get rid of lines that look like this:
Begin :... (11 Replies)
Discussion started by: deneuve01
11 Replies
4. Shell Programming and Scripting
Hello all! I've looked all over the internet and this site and have come up a loss with an easy way to make a bash script to do what I want to do. I have a file with a naming convention as follows:
2012-01-18 string of words here 123.jpg
2012-01-18 string of words here 1234.jpg
2012-01-18... (2 Replies)
Discussion started by: Buzzman25
2 Replies
5. Shell Programming and Scripting
Hi ,
I do have a fixedwidth flatfile that has data for 10 different datasets each identified by the first two digits in the flatfile.
01 in the first two digit position refers to Set A
02 in the first two digit position refers to Set B and so on
I want to genrate 10 different files from my... (6 Replies)
Discussion started by: okkadu
6 Replies
6. Shell Programming and Scripting
Hi,
Using AWK script I want to pick those rows that has AT LEAST TWO columns EACH has a count >=3.
i.e. two conditions: at least two columns, each of which has a count at least 3.
There must be a simple way to do this job, but could not figure it out by myself.
Input file (thousand of... (3 Replies)
Discussion started by: yifangt
3 Replies
7. Shell Programming and Scripting
I have a file
# cat asasas
AAAAAA
11
22
33
44
BBBBB
NILNILNIL
AAAAAA
22
33
44
55
66
77
88
BBBBB
NILNILNIL (2 Replies)
Discussion started by: anil510
2 Replies
8. Shell Programming and Scripting
Hi Unix Mates,
I have requirement where in which I have to replace second to last -1 occurence of space with a word and last occurence of a space with a word and a space,input would be a file.
Desired result:
Second consecutive to last-1 occurence of space replace with: HRU
LAST... (5 Replies)
Discussion started by: Kingcobra
5 Replies
9. UNIX for Dummies Questions & Answers
Hi Folks,
I have a text file with lots of rows with duplicates in the first column, i want to filter out records based on filter columns in a different filter text file.
bash scripting is what i need.
Data.txt
Name OrderID Quantity
Sam 123 300
Jay 342 498
Kev 78 2500
Sam 420 50
Vic 10... (3 Replies)
Discussion started by: tech_frk
3 Replies
10. UNIX for Beginners Questions & Answers
Hi All ,
I am having an input file as stated below
5728 U_TOP_LOGIC/U_CM0P/core/u_cortexm0plus/u_top/u_sys/u_core/r03_q_reg_20_/Q 011
611 U_TOP_LOGIC/U_CM0P/core/u_cortexm0plus/u_top/u_sys/u_core/r04_q_reg_20_/Q 011
3486... (4 Replies)
Discussion started by: kshitij
4 Replies
LEARN ABOUT MOJAVE
rwbytype.d
rwbytype.d(1m) USER COMMANDS rwbytype.d(1m)
NAME
rwbytype.d - read/write bytes by vnode type. Uses DTrace.
SYNOPSIS
rwbytype.d
DESCRIPTION
This program identifies the vnode type of read/write activity - whether that is for regular files, sockets, character special devices, etc.
This is measuring at the application level, so file activity may well be cached by the system.
Since this uses DTrace, only users with root privileges can run this command.
EXAMPLES
This samples until Ctrl-C is hit.
# rwbytype.d
FIELDS
PID process ID
CMD process name
VNODE vnode type (describes I/O type)
DIR direction, Read or Write
BYTES total bytes
DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
bose descriptions explaining the output.
EXIT
rwbytype.d will sample until Ctrl-C is hit.
AUTHOR
Brendan Gregg [Sydney, Australia]
SEE ALSO
rwbypid.d(1M), rwbbypid.d(1M), dtrace(1M)
version 0.70 Jan 11, 2006 rwbytype.d(1m)