NAME¶
rancid_par - parallel command processing
SYNOPSIS¶
rancid_par [
-dfiqx] [
-c command]
[
-l logfile] [
-n #] file [file...]
DESCRIPTION¶
rancid_par takes a list of files to run a command on. The first line of
each file begins with a colon (:) or a pound-sign (#). If a colon, the
remainder of the line is a command to run for each of the subsequent lines. If
a pound-sign, then each subsequent line is a (self-contained) command, unless
the
-c option was specified, in which case it operates as if the
argument to
-c had followed a colon on the first line.
In each of the cases where the lines of the file following the first are not
commands (i.e.: colon or -c), instances of open-close braces ({}) in the
command will be replaced by these values.
For example, a inputfile whose contents is:
: echo {}
a
b
c
run with
rancid_par like so:
%rancid_par -q inputfile
will produce the following output (order will vary):
b
a
c
The command-line options are as follows:
- -c
- Command to be run on each of the arguments following the command-line
options, where the first line of the input file(s) begins with a
pound-sign (#).
- -d
- Print debugging information on standard error (stderr).
- -f
- No file or STDIN, just run a quantity of the command specified with
-c.
- -i
- Run commands interactively through (multiple) xterm(1)
processes.
- -l
- Prefix of logfile name, as in prefix.N where N is the rancid_par
process number ([0..]).
Default: par.log.<time>.[0..]
- -n
- Number of simultaneous processes.
Default: 3
- -q
- Quiet mode. Do not log anything. -q is mutually exclusive with the
-x and -l options and the option appearing last will take
precedence.
- -x
- View rancid_par logs in real-time via an xterm(1).
FILES¶
par.log.T.N Log file; where T is the current time in seconds since the
epoch and N is the rancid_par process number ([0..]).