Hi all,
i need to write an ls command which will pick up
ind_01.txt/pak_01.txt from
ind_01.txt
pak_01.txt
usa_01.txt
files in a directory..
i wrote a ls command by storing ind and pak in 2 variables and listing it. Its working fine. But the pattern to be matched should be sent in... (1 Reply)
Hi can anyone tell me what command should i use to find the files which have been created within 24hrs in / .
I tried with this
find mtime 24 /
But its not working. Pls let me know to solve the issue. (3 Replies)
Hi All,
I search the forum for my query, Glad that got solution to it. But i really want to understand how does this command work.
sed -e ':a' -e 's/\("*\),\(*"\)/\1~\2/;ta'
Basically it is replacing all the comma(,) characters in between quotes with a tilde.
Specially what does ':a' ,... (2 Replies)
Hi,
I'm a complete noobie at UNIX and have hit a problem.
I'm using the 'Talend' ETL tool to try and extract flat files from UNIX on a weekly basis.
The dates are maintained in a control table and the appropriate folder has been mounted.
I am using a component in 'Talend' which enable... (1 Reply)
#!/bin/bash
perl -nle'
/(?:date|time|ref)/ and print join " ", /(?:date|time|ref)+/g
or print
' inputfile
Problem I have is that I want to delete words that are on the line of the 3 words above (date, time, and reference). However, I do not want to delete the words... (9 Replies)
Hi I m creating a file which will serve as a virtual harddisk .
I m using following command to create a file.
#dd if=/dev/zero of=/tmp/Sample.dat bs=1M count=1024
I have following doubts regarding the operation.
1) In above example i m creating a file with byte size of 1M .However in... (1 Reply)
Lets say I have 100 files. in those files I need to search specific word and I want to tar all those files at once. how can I do that?tar -cvf test.tar |grep house *.*Will it work?
Please wrap all code, files, input & output/errors in CODE tags.
It makes them easier to read and preserves... (2 Replies)
guys im new here and i need help with some linux commands.
filea has keyword on each line
identity
aaa
bbb
ccc
i have following commands.
egrep 'www.identity' ~/home/m3 >~/home/lopo2
wc -l file ~/home/lopo2
say lopo2 has 44 lines
then output saved is
identity 44 (1 Reply)
The 'env' command prints out all of the environment variables and their values.
Come up with a command that prints a list of environment variables whose names
end with either 'NAME', 'DIR' or 'PATH'.
What I've tried.
$ env | grep ''
Although it highlights the part of the variables... (8 Replies)
Discussion started by: edujs7
8 Replies
LEARN ABOUT DEBIAN
sd_get_sessions
SD_GET_SEATS(3) sd_get_seats SD_GET_SEATS(3)NAME
sd_get_seats, sd_get_sessions, sd_get_uids - Determine available seats, sessions and logged in users
SYNOPSIS
#include <systemd/sd-login.h>
int sd_get_seats(char*** seats);
int sd_get_sessions(char*** sessions);
int sd_get_uids(char*** sessions);
DESCRIPTION
sd_get_seats() may be used to determine all currently available local seats. Returns a NULL terminated array of seat identifiers. The
returned array and all strings it references need to be freed with the libc free(3) call after use. Note that instead of an empty array
NULL may be returned and should be considered equivalent to an empty array.
Similar, sd_get_sessions() may be used to determine all current login sessions.
Similar, sd_get_uids() may be used to determine all Unix users who currently have login sessions.
RETURN VALUE
On success sd_get_seats(), sd_get_sessions() and sd_get_uids() return the number of entries in the arrays. On failure, these calls return a
negative errno-style error code.
NOTES
The sd_get_seats(), sd_get_sessions() and sd_get_uids() interfaces are available as shared library, which can be compiled and linked to
with the libsystemd-login pkg-config(1) file.
SEE ALSO systemd(1), sd-login(7), sd_session_get_seat(3)AUTHOR
Lennart Poettering <lennart@poettering.net>
Developer
systemd 10/07/2013 SD_GET_SEATS(3)