I have output like this:
where USER_ID is a unique user login followed by their login timestamp and logout timestamp. How can I append the login and logout timestamps to the end of the user_id line? It would look like this:
I've been experimenting with this from the sed one-liners:
Quote:
Originally Posted by http://sed.sourceforge.net/sed1line.txt
# if a line ends with a backslash, append the next line to it
sed -e :a -e '/\\$/N; s/\\\n//; ta'
using this:
but it's producing:
Can someone advise?
Hi I have used many times the various methods to append two lines together in a file.
This time I want to append the 1st line to the second and repeat for the complete file.... an example
This is the file
owns the big brown dog
joe
owns the small black dog
jim
What I want is
... (7 Replies)
I'll try explain this as best I can. Let me know if it is not clear.
I have large text files that contain data as such:
143593502 09-08-20 09:02:13 xxxxxxxxxxx xxxxxxxxxxx 09-08-20 09:02:11 N line 1 test
line 2 test
line 3 test
143593503 09-08-20 09:02:13... (3 Replies)
Hi,
I've spent some time researching for this but can't seem to find a solution. I have a file like this
1234|Test|20101111|18:00|19:00There will be multiple lines in the file with the same kind of format. For every line I need to make it this
1234|Test|20101111|18:00|19:00||create... (5 Replies)
Hello,
I have a group of text files with many lines in each file.
I need to delete all the lines in each and only leave 2 lines in each file. (3 Replies)
Hi,
I have 1000 line text file.
I need only the 1st and 8th line from every set of 10 lines, that is,
1,8,11,18,21,21,28,31,38,... lines etc into a text file.
Please let me know how I can achieve the same.
Regards,
Don (2 Replies)
Hi,
My file has the below content
Heading
1
2
3
Heading
4
5
6
I need to remove the other occurrences of first line and display other lines.
The content of first line is not static
My output should be:
Heading
1
2 (8 Replies)
Hi All,
This is very urgent, I've a data file with 1.7 millions rows in the file and the delimiter is cedilla and I need to format the data in such a way that if the NF in the next row is less than 1, it will append that value to previous line.
Any help will be appricated.
Thanks,... (17 Replies)
I have been searching and trying to come up with an awk that will perform the following on a
converted text file (original is a pdf).
1. Since the first two lines are (begin with) text they are removed
2. if $1 is a number then all text is merged (combined) into one line until the next... (3 Replies)
LOGIN(3) BSD Library Functions Manual LOGIN(3)NAME
login, logout, logwtmp -- login utility functions (DEPRECATED)
SYNOPSIS
#include <util.h>
void
login(struct utmp *ut);
int
logout(const char *line);
void
logwtmp(const char *line, const char *name, const char *host);
DESCRIPTION
The login(), logout(), and logwtmp() functions are DEPRECATED; use pututxline(3) instead.
These functions operate on the database of current users in /var/run/utmpx and the system log file. Superuser permission is required.
The login() function updates the /var/run/utmpx files with user information contained in ut (after converting to a struct utmpx, as described
in pututxline(3)).
The logout() function removes the entry from /var/run/utmpx corresponding to the device line.
The logwtmp() function adds an entry to the system log file. Since login() will add the appropriate entry during a login, logwtmp() is usu-
ally used for logouts.
RETURN VALUES
logout() returns non-zero if it was able to find and delete an entry for line, and zero if there is no entry for line in /var/run/utmpx.
However, there is no error indication due to lack of permissions.
FILES
/dev/*
/var/run/utmpx
SEE ALSO pututxline(3), utmp(5), utmpx(5)BSD December 14, 1995 BSD