09-21-2010
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi there,
I am trying to do somehting similar, but on a wider scale.
I am trying to write a script that would open the home directory, open the first (of 650) user's folder
open the ?mail directory, which every user has
Then I need the script to read each of the files and folder names with... (2 Replies)
Discussion started by: technett
2 Replies
2. Shell Programming and Scripting
I have a large CSV files (e.g. 2 million records) and am hoping to do one of two things. I have been trying to use awk and sed but am a newbie and can't figure out how to get it to work. Any help you could offer would be greatly appreciated - I'm stuck trying to remove the colon and wildcards in... (6 Replies)
Discussion started by: metronomadic
6 Replies
3. UNIX for Dummies Questions & Answers
Hello Everyone, (1 Reply)
Discussion started by: thankful123
1 Replies
4. UNIX for Dummies Questions & Answers
My task requires me to add a column to my existing csv file.This column will be populated with data that is dependant on data in another column.The script will go through the data in column A and create new cells in column B that will be dependent on column A data.
Thanks (1 Reply)
Discussion started by: Adan Daroski
1 Replies
5. Shell Programming and Scripting
Hi,
I need help to split lines from a file into multiple files.
my input look like this:
13
23 45 45 6 7
33 44 55 66 7
13
34 5 6 7 87
45 7 8 8 9
13
44 55 66 77 8
44 66 88 99 6
I want to split every 3 lines from this file to be written to individual files. (3 Replies)
Discussion started by: saint2006
3 Replies
6. Shell Programming and Scripting
hi, i really need it ...it's not simple to explain but as it's part of a crontab i can't split the file manually...and the file can change every day so the lines are not a good base.
example: how to split 1 csv file in 15 files?
thank you very much
regards :b: (4 Replies)
Discussion started by: 7stars
4 Replies
7. Shell Programming and Scripting
hi, someone to know how can i read a specific column of csv file and search the value in other csv columns if exist the value in the second csv copy entire row with all field in a new csv file. i suppose that its possible using awk but i m not expertise thanks in advance (8 Replies)
Discussion started by: giankan
8 Replies
8. Shell Programming and Scripting
So I have a space delimited file that I'd like to split into multiple files based on multiple column values.
This is what my data looks like
1bc9A02 1 10 1000 FTDLNLVQALRQFLWSFRLPGEAQKIDRMMEAFAQRYCQCNNGVFQSTDTCYVLSFAIIMLNTSLHNPNVKDKPTVERFIAMNRGINDGGDLPEELLRNLYESIKNEPFKIPELEHHHHHH
1ku1A02 1 10... (9 Replies)
Discussion started by: viored
9 Replies
9. Shell Programming and Scripting
Hi guys,
I have a requirement where i need to split a .csv file into multiple files.
Say for example i have data.csv file and i have splitted that into multiple files based on some conditions i.e first file should have 100, last file 50 and other files 1000 each. Am passing the values in... (2 Replies)
Discussion started by: azherkn3
2 Replies
10. Shell Programming and Scripting
Hi,
I am new to awk/unix and am trying to put together an awk script to perform an action similar to vlookup between the two csv files.
Here are the contents of the two files:
File 1:
Date,ParentID,Number,Area,Volume,Dimensions
2014-01-01,ABC,247,83430.33,857.84,8110.76... (9 Replies)
Discussion started by: Prit Siv
9 Replies
LEARN ABOUT LINUX
thread-keyring
THREAD-KEYRING(7) Linux Programmer's Manual THREAD-KEYRING(7)
NAME
thread-keyring - per-thread keyring
DESCRIPTION
The thread keyring is a keyring used to anchor keys on behalf of a process. It is created only when a thread requests it. The thread
keyring has the name (description) _tid.
A special serial number value, KEY_SPEC_THREAD_KEYRING, is defined that can be used in lieu of the actual serial number of the calling
thread's thread keyring.
From the keyctl(1) utility, '@t' can be used instead of a numeric key ID in much the same way, but as keyctl(1) is a program run after
forking, this is of no utility.
Thread keyrings are not inherited across clone(2) and fork(2) and are cleared by execve(2). A thread keyring is destroyed when the thread
that refers to it terminates.
Initially, a thread does not have a thread keyring. If a thread doesn't have a thread keyring when it is accessed, then it will be created
if it is to be modified; otherwise the operation fails with the error ENOKEY.
SEE ALSO
keyctl(1), keyctl(3), keyrings(7), persistent-keyring(7), process-keyring(7), session-keyring(7), user-keyring(7), user-session-keyring(7)
Linux 2017-03-13 THREAD-KEYRING(7)