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Top Forums Shell Programming and Scripting How do we display specific row of an output from bottom given line number? Post 303043989 by mohtashims on Wednesday 12th of February 2020 08:16:55 AM
Old 02-12-2020
If the user passes 1 then i need the newest latest file.

If the user passes 2 then i wish to display only the newest - 1 file i.e second latest file.

if the user passes 3 then the third latest file.

Code:
-bash-4.2$ ls -lt *.conf*
-rwxrwxrwx 1 user1 user 21627 Feb 11 17:17 httpd.conf_1581421731
-rwxrwxrwx 1 user1 user 15445 Feb 11 17:14 httpd-ssl.conf_1581421731
-rwxrwxrwx 1 user1 user 21624 Feb 11 17:13 httpd.conf_1581421456
-rwxrwxrwx 1 user1 user 15445 Feb 11 15:39 httpd-ssl.conf_1581421372
-rwxrwxrwx 1 user1 user 15445 Feb 11 15:39 httpd-ssl.conf_1581421456
-rwxrwxrwx 1 user1 user 21627 Feb 11 13:35 httpd.conf_1581408391
-rwxrwxrwx 1 user1 user 21627 Feb 11 13:35 httpd.conf_1581413246
-rwxrwxrwx 1 user1 user 21627 Feb 11 13:35 httpd.conf_1581415778
-rwxrwxrwx 1 user1 user 21627 Feb 11 13:35 httpd.conf_1581421372
-rwxrwxrwx 1 user1 user 21644 Feb 11 13:29 httpd.conf_1581408244
-rwxrwxrwx 1 user1 user 21644 Feb 11 13:29 httpd.conf_1581408293
-rwxrwxrwx 1 user1 user 21627 Feb 11 11:13 httpd.conf_1581399897
-rwxrwxrwx 1 user1 user 21627 Feb 11 11:13 httpd.conf_1581407966
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581399897
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581407966
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581408244
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581408293
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581408391
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581413246
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581415778
-bash-4.2$ ls -lt | sed -n "${1}p"
total 400
-rwxrwxrwx 1 user1 user 21627 Feb 11 17:17 httpd.conf_1581421731
-rwxrwxrwx 1 user1 user 15445 Feb 11 17:14 httpd-ssl.conf_1581421731
-rwxrwxrwx 1 user1 user 21624 Feb 11 17:13 httpd.conf_1581421456
-rwxrwxrwx 1 user1 user 15445 Feb 11 15:39 httpd-ssl.conf_1581421372
-rwxrwxrwx 1 user1 user 15445 Feb 11 15:39 httpd-ssl.conf_1581421456
-rwxrwxrwx 1 user1 user 21627 Feb 11 13:35 httpd.conf_1581408391
-rwxrwxrwx 1 user1 user 21627 Feb 11 13:35 httpd.conf_1581413246
-rwxrwxrwx 1 user1 user 21627 Feb 11 13:35 httpd.conf_1581415778
-rwxrwxrwx 1 user1 user 21627 Feb 11 13:35 httpd.conf_1581421372
-rwxrwxrwx 1 user1 user 21644 Feb 11 13:29 httpd.conf_1581408244
-rwxrwxrwx 1 user1 user 21644 Feb 11 13:29 httpd.conf_1581408293
-rwxrwxrwx 1 user1 user 21627 Feb 11 11:13 httpd.conf_1581399897
-rwxrwxrwx 1 user1 user 21627 Feb 11 11:13 httpd.conf_1581407966
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581399897
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581407966
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581408244
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581408293
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581408391
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581413246
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581415778


Thus if the user passes 3 then the below file should be be printed
Code:
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581408391

if the user passes 4 then the below file should be be printed
Code:
-rwxrwxrwx 1 user1 user 15445 Feb 11 11:12 httpd-ssl.conf_1581408293

@Rudic your suggestion does not help get my desired output. Kindly suggest.
 

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httpd(8)						      System Manager's Manual							  httpd(8)

NAME
httpd - Apache hypertext transfer protocol server SYNOPSIS
httpd [ -d serverroot ] [ -f config ] [ -C directive ] [ -c directive ] [ -D parameter ] httpd [ -h ] [ -l ] [ -L ] [ -v ] [ -V ] [ -t ] [ -X ] DESCRIPTION
httpd is the Apache HyperText Transfer Protocol (HTTP) server program. It is designed to be run as a standalone daemon process. When used like this it will create a pool of child processes to handle requests. To stop it, send a TERM signal to the initial (parent) process. The PID of this process is written to a file as given in the configuration file. This manual page only lists the command line arguments. For details of the directives necessary to configure httpd see the Apache manual, which is part of the Apache distribution or can be found at http://httpd.apache.org/. Paths in this manual may not reflect those compiled into httpd. OPTIONS
-d serverroot Set the initial value for the ServerRoot directive to serverroot. This can be overridden by the ServerRoot command in the con- figuration file. The default is /etc/httpd. -f config Execute the commands in the file config on startup. If config does not begin with a /, then it is taken to be a path relative to the ServerRoot. The default is conf/httpd.conf. -C directive Process the configuration directive before reading config files. -c directive Process the configuration directive after reading config files. -D parameter Sets a configuration parameter which can be used with <IfDefine>...</IfDefine> sections in the configuration files to condi- tionally skip or process commands. -h Output a short summary of available command line options. -l Output a list of modules compiled into the server. -L Output a list of directives together with expected arguments and places where the directive is valid. -S Show the settings as parsed from the config file (currently only shows the virtualhost settings). -t Run syntax tests for configuration files only. The program immediately exits after these syntax parsing with either a return code of 0 (Syntax OK) or return code not equal to 0 (Syntax Error). If -D DUMP_VHOSTS is also set, details of the virtual host configuration will be printed. -v Print the version of httpd , and then exit. -V Print the version and build parameters of httpd , and then exit. -X Run httpd in debug mode. Only one worker will be started and the server will not detach from the console. FILES
/etc/httpd/conf/httpd.conf /etc/mime.types /etc/httpd/conf/magic /var/log/httpd/error_log /var/log/httpd/access_log /var/run/httpd.pid February 1997 httpd(8)
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