1incrond(8)                   incron documentation                   incrond(8)
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NAME

6       incrond - inotify cron (incron) daemon
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SYNOPSIS

10       incrond [ -f file ] [ -n | -k ]
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DESCRIPTION

13       The inotify cron daemon (incrond) is a daemon which monitors filesystem
14       events and executes commands defined in system and  user  tables.  It's
15       use is generally similar to cron(8).
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17       incrond can be started from /etc/rc, /etc/rc.local and so on. It daemo‐
18       nizes itself (returns immediately) and doesn't need to be started  with
19       & and through nohup(1). It can be run on foreground too.
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21       incrond  uses  two categories of tables incrontab(5). System tables are
22       usually located in /etc/incron.d and are maintained outside  of  incron
23       (e.g.  by various applications). These tables work on root rights level
24       and thus any file may be watched and commands are  executed  with  root
25       privileges.
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27       User  tables are located in /var/spool/incron by default and have names
28       based on user accounts. These tables use  users'  access  rights,  thus
29       only files which the user may access are watched. Commands are executed
30       with users' privileges.
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32       If a table  (incrontab)  is  changed  incrond  reacts  immediately  and
33       reloads the table. Currently running child processes (commands) are not
34       affected.
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36       There are two files determining whether  an  user  is  allowed  to  use
37       incron.  These  files have very simple syntax - one user name per line.
38       If /etc/incron.allow exists the user must be noted there to be  allowed
39       to  use  incron. Otherwise if /etc/incron.deny exists the user must not
40       be noted there to use incron. If none of these files exists there is no
41       other  restriction  whether  anybody  may use incron. Location of these
42       files can be changed in the configuration.
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44       The daemon itself is currently not protected against looping. If a com‐
45       mand  executed  due  to  an  event causes the same event it leads to an
46       infinite loop unless a flag mask containing loopable=true is specified.
47       Please  beware  of  this  and do not allow permission for use incron to
48       unreliable users.
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51       -n (or --foreground) option causes running on foreground. This is  use‐
52       ful especially for testing, debugging and optimization.
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54       -k (or --kill) option terminates a running instance of incrond.
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56       -f  <FILE>  (or  --config=<FILE>) option specifies another location for
57       the configuration file (/etc/incron.conf is used by default).
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59       Environment variables: For system tables, the default (the same as  for
60       incrond  itself)  environment variable set is used. The same applies to
61       root's table. For  non-root  user  tables,  the  whole  environment  is
62       cleared and then only these variables are set: LOGNAME, USER, USERNAME,
63       SHELL, HOME and PATH. The variables (except PATH) take values from  the
64       user   database  (e.g.  /etc/passwd).  The  PATH  variable  is  set  to
65       /usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin.
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SEE ALSO

68       incrontab(1), incrontab(5), incron.conf(5)
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BUGS

71       incrond is currently not resistent against looping.
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AUTHOR

74       Andreas Altair Redmer <altair.ibn.la.ahad.sy@gmail.com> (please  report
75       bugs   to   https://github.com/ar-/incron/issues   ).    Lukas  Jelinek
76       <lukas@aiken.cz>.
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COPYING

79       This program is free software. It can  be  used,  redistributed  and/or
80       modified under the terms of the GNU General Public License, version 2.
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84Lukas Jelinek                       0.5.12                          incrond(8)