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Full Discussion: Parsing of file for Report Generation (String parsing and splitting)
Top Forums Shell Programming and Scripting Parsing of file for Report Generation (String parsing and splitting) Post 302292396 by cfajohnson on Friday 27th of February 2009 05:37:14 PM
Old 02-27-2009
Quote:
Originally Posted by adderek
If the line can be very long you could expect unexpected problems (like storing too much data into a variable in shell or the line being truncated).

There is no reason either should happen. The variable length is limited only by available memory.
Quote:

On the other side such trick could probably work as well: "for var in $(cat file); do .... done"

The is not the way to read a file. It sets var to each word in the file, not each line.
Quote:
or better - use "read".... you might need to play with the FS/IFS settings.

There is no need to play with IFS to read a file line by line.
 

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LEARN ABOUT LINUX

pure-ftpwho

pure-ftpwho(8)							     Pure-FTPd							    pure-ftpwho(8)

NAME

       pure-ftpwho - Report current FTP sessions

SYNTAX

       pure-ftpwho [-c] [-h] [-H] [-n] [-p] [-s] [-v] [-w] [-W] [-x]

DESCRIPTION

       pure-ftpwho  shows current Pure-FTPd client sessions.  Only the system administrator may run this.  Output can be text (default), HTML, XML
       data and parser-optimized.  The server has to be compiled with --with-ftpwho to support this command.

OPTIONS

       -c     the program is called via a web server (CGI interface) . Output is a full HTML page  with  the  initial  content-type  header.  This
	      option  is  automatically  enabled  if an environment variable called GATEWAY_INTERFACE is found. This is the default if you can the
	      program from a CGI-enabled web server (Apache, Roxen, Caudium, WN, ...) .

       -h     Output help information and exit.

       -H     Don't resolve host names, and only show IP addresses (faster).

       -n     A synonym for -H.

       -p     Output Mac OSX / GNUStep plist data.

       -s     Output only one line per client, with only numeric data, delimited by a  |  character.   It's  not  very	human-readable,  but  it's
	      designed for easy parsing by shell scripts (cut/sed) .  '|' characters in user names or file names are quoted (|) .

       -v     Output  an  ASCII table (just like the default mode), with more info.  The verbose output includes the local IP, the local port, the
	      total size of transfered files and the current number of transfered bytes.

       -w     Output a complete HTML page (web mode).

       -W     Output an HTML page with no header and no footer. This is an embedded mode, suitable for inline calls from CGI, SSI or PHP scripts.

       -x     Output well-formed XML data for post-processing.

FILES

       /var/run/pure-ftpd/ Scoreboard directory. Should always owned by root and on a lockable filesystem.

ENVIRONMENT VARIABLES

       GATEWAY_INTERFACE
	      If found, automatically run in CGI mode and output HTML data.

AUTHORS

       Frank DENIS <j at pureftpd dot org>

SEE ALSO

       ftp(1), pure-ftpd(8) pure-ftpwho(8) pure-mrtginfo(8) pure-uploadscript(8) pure-statsdecode(8) pure-pw(8) pure-quotacheck(8) pure-authd(8)

       RFC 959, RFC 2389, RFC 2228 and RFC 2428.

Pure-FTPd team							      1.0.36							    pure-ftpwho(8)
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