To find and display the middle line in a file using single line command. Post: 302907264

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Single line file editing command?

Hello everyone. I have been reading a lot about the various different text editors at my disposal through Unix, but I just can't seem to close the deal for what I am trying to do. Is there a way to issue a single line command to edit a file where pattern=x, and do it non-destructively AND in-place?...

2. Shell Programming and Scripting

Script to add a single line to middle of text file.

I've got a configuration file that is filled with xml text statements for example: <...../> <...../> <...../> <data id="java-options" value="-server -Djava.security.policy..../> <...../> <...../> <...../> I want to write a korn shell script that will go to this specific line and add a...

3. Shell Programming and Scripting

Display mutiple line in single line

Hi All, I had a file called Input.txt, i need to group up in a single line as 1=ttt and the no of lines may vary bewteen the 1=ttt cat Input.txt 1=ttt,2=xxxxxx, 3=4545 44545, 4=66667 7777, 5=77723 1=ttt, 2=xxxxxx, 3=34436 66 3545, 4=66666, 5=ffffff, 6=uuuuuuu 1=ttt, 2=xxxxxx,...

4. Shell Programming and Scripting

Need a Command To display "echo command value in loop" in single line.

Hi I want to display "echo command value in loop" in single line. My requirement is to show the input file (test_1.txt) like the output file (test_2.txt) given below. Input file :test_1.txt a1|b1|4|5 a1|b1|42|9 a2|b2|32|25 a1|b1|2|5 a3|b3|4|8 a2|b2|14|6 Output file:test_2.txt...

5. UNIX for Dummies Questions & Answers

single line command to delete a 6 months old file

i had this scenario where i need to delete a file that is 6 months old which is no longer needed. basically the filename is in the format of PCARDDAILYmmddyyyy.txt where the mm is the month, dd is the day, and yyyy is the year. e.g. PCARDDAILY05262009.txt PCARDDAILY05252009.txt ...

6. UNIX for Dummies Questions & Answers

vim copy line and paste at the beginning, middle, and end of another line

How would you do vim copy line and paste at the beginning, middle, and end of another line. I know yy copies the whole line and p pastes the whole line, but on its own separate line. Sometimes I would like to copy a line to the beginning, middle, or end of another line. I would think this would be...

7. Shell Programming and Scripting

sed command to grep multiple pattern present in single line and delete that line

here is what i want to achieve.. i have a file with below contents cat fileName blah blah blah . .DROP this REJECT that . --sport 7800 -j REJECT --reject-with icmp-port-unreachable --dport 7800 -j REJECT --reject-with icmp-port-unreachable . . . more blah blah blah --dport 3306...

8. UNIX for Beginners Questions & Answers

Output to file print as single line, not separate line

example of problem: when I echo "$e" >> /home/cogiz/file.txt result prints to file as:AA BB CC I need it to save to file as this:AA BB CC I know it's probably something really simple but any help would be greatly appreciated. Thank You. Cogiz

9. Homework & Coursework Questions

How to display certain line of file only using head or tail in 1 command?

First month learning about the Linux terminal and it has been a challenge yet fun so far. We're learning by using a gameshell. I'm trying to display a certain line ( only allowed 1 command ) from a file only using the head or tail. I'm pretty about this answer: head -23 history.txt | tail -1...

LEARN ABOUT SUSE

pam_lastlog

PAM_LASTLOG(8)							 Linux-PAM Manual						    PAM_LASTLOG(8)

NAME

       pam_lastlog - PAM module to display date of last login

SYNOPSIS

       pam_lastlog.so [debug] [silent] [never] [nodate] [nohost] [noterm] [nowtmp] [noupdate] [showfailed]

DESCRIPTION

       pam_lastlog is a PAM module to display a line of information about the last login of the user. In addition, the module maintains the
       /var/log/lastlog file.

       Some applications may perform this function themselves. In such cases, this module is not necessary.

OPTIONS

       debug
	   Print debug information.

       silent
	   Don't inform the user about any previous login, just update the /var/log/lastlog file.

       never
	   If the /var/log/lastlog file does not contain any old entries for the user, indicate that the user has never previously logged in with
	   a welcome message.

       nodate
	   Don't display the date of the last login.

       noterm
	   Don't display the terminal name on which the last login was attempted.

       nohost
	   Don't indicate from which host the last login was attempted.

       nowtmp
	   Don't update the wtmp entry.

       noupdate
	   Don't update any file.

       showfailed
	   Display number of failed login attempts and the date of the last failed attempt from btmp. The date is not displayed when nodate is
	   specified.

MODULE TYPES PROVIDED

       Only the session module type is provided.

RETURN VALUES

       PAM_SUCCESS
	   Everything was successful.

       PAM_SERVICE_ERR
	   Internal service module error.

       PAM_USER_UNKNOWN
	   User not known.

EXAMPLES

       Add the following line to /etc/pam.d/login to display the last login time of an user:

	       session	required  pam_lastlog.so nowtmp

FILES

       /var/log/lastlog
	   Lastlog logging file

SEE ALSO

       pam.conf(5), pam.d(5), pam(8)

AUTHOR

       pam_lastlog was written by Andrew G. Morgan <morgan@kernel.org>.

Linux-PAM Manual						    04/01/2010							    PAM_LASTLOG(8)