are there any basic commands that can display lines 99 - 101 of the /etc/passwd file?
I'm thinking use of head and tail, but I forget what numbers to use and where to put /etc/passwd in the command. (2 Replies)
Hey,
I know the head and tail function is to view like the top or bottom lines for each file. But lets say I want to view the top/bottom 100 or top/bottom 1000 for a file. whats the command that I use to do this?
thanks (2 Replies)
I woud like to substitue a string on a specific position for specific lines
I've got a file and I would like to change a specific string from "TOCHANGE" to "ABCABCAB"
For every line (except 1,2, 3 and the last one) , I need to check between the 9th and the 16th digits.
For the 3rd line, I... (7 Replies)
This could be a really dummy question.
I have a log text file.
What unix command to extract line from specific string to another specific string.
Is it something similar to?:
more +/"string" file_name
Thanks (4 Replies)
Hi
I have a file which is tab-delimited. Now, I'd like to print the lines which have "chr6" string in both first and second columns. Could anybody help? (3 Replies)
Data file example
I look for primary and * to isolate the interesting slot number.
slot=`sed '/^primary$/,/\*/!d' filename | tail -1 | sed s'/*//' | awk '{print $1" "$2}'`
Now I want to get the Touch line for only the associate slot number, in this case, because the asterisk... (2 Replies)
Hi,
I have a file with hundreds of lines. I want to search for particular lines starting with 4000, search and replace the 137-139 position characters; which will be '000', with '036'. Can all of this be done without opening a temp file and then moving that temp file to the original file name.
... (7 Replies)
Hi guys
Done a bit of research online but can't seem to figure it out, is there anyway of grepping or using sed to view a specific time period of a log file.
I am trying to view a log file for Saturday 22nd April between 08:00 - 12:00
I saw this command online and tried but doesn't seem to... (10 Replies)
Hi, I need to print lines which are matching with start pattern "SELECT" and END PATTERN ";" and only select the last "select" statement including the ";" .
I have attached sample input file and the desired input should be as:
INPUT FORMAT:
SELECT
ABCD,
DEFGH,
DFGHJ,
JKLMN,
AXCVB,... (5 Replies)
Discussion started by: nani2019
5 Replies
LEARN ABOUT MOJAVE
bioutil
bioutil(1) BSD General Commands Manual bioutil(1)NAME
bioutil -- tool for viewing/changing Touch ID configuration and listing/deleting enrolled fingerprints
SYNOPSIS
bioutil {-r | -w [-f { 0 | 1 }] [-u { 0 | 1 }] [-a { 0 | 1 }]} | [-c] | [-p] | [-d <uid>] [-s]
DESCRIPTION
bioutil provides the possibility of viewing and changing Touch ID configuration, both system-wide and user-specific. It also allows listing
and deleting enrolled fingerprints.
OPTIONS -r, --read
Read Touch ID configuration.
-w, --write
Write Touch ID configuration.
-s, --system
Indicates that system-wide configuration is to be read/written (user-specific configuration is the default) or that a system-wide
list/delete operation is to be performed.
-f, --function
Enables (1) or disables (0) overall Touch ID functionality (system-wide configuration only).
-u, --unlock
Enables (1) or disables (0) Touch ID for unlock.
-a, --applepay
Enables (1) or disables (0) Touch ID for ApplePay (user-specific configuration only).
-c, --count
Provides number of enrolled fingerprints of the current user or of all users (when run with -s as an administrator)
-p, --purge
Deletes all enrolled fingerprints of the current user or of all users (when run with -s as an administrator)
-d, --delete
Deletes all enrolled fingerprints of the user with given user ID (must be run as an administrator)
EXAMPLES
bioutil -r
Reads Touch ID configuration for the current user.
bioutil -r -s
Reads system-wide Touch ID configuration.
bioutil -w -u 1
Enables Touch ID for unlock for the current user.
sudo bioutil -w -s -u 0
Disables Touch ID for unlock for the whole system.
bioutil -c
Prints the number of enrolled fingerprints of the current user.
bioutil -p
Deletes all enrolled fingerprints of the current user.
sudo bioutil -c -s
Prints numbers of enrolled fingerprints of all enrolled users.
sudo bioutil -p -s
Deletes all fingerprints from the system.
sudo bioutil -s -d 501
Deletes all fingerprints of user 501.
Darwin May 31, 2019 Darwin