ref: d7c17b1fb34c86c450a7f64cdc751b169f6f6c7d
parent: b5bcf2e7a3676b4dac35d73604d1ded5fba7ab5c
author: kvik <[email protected]>
date: Tue Nov 6 18:17:32 EST 2018
readme
--- /dev/null
+++ b/README
@@ -1,0 +1,60 @@
+
+
+ CLONE(1) CLONE(1)
+
+ NAME
+ clone - copy files and directories
+
+ SYNOPSYS
+ clone [ -gux ] [ -b blocksize ] [ -p fileprocs:blockprocs ]
+ from ... to
+
+ DESCRIPTION
+ Clone copies files and directories. Similar in spirit to
+ fcp(1) it is a multi-process program which relies on
+ pread(2) and pwrite(2) system calls to copy multiple blocks
+ in parallel, speeding up the file transfer over high-latency
+ links; in contrast to fcp(1) it can copy both single files
+ and directories, which may be mixed on the command line.
+
+ A single file is copied as expected. If to does not exist,
+ it is created; otherwise, an existing file is overwritten;
+ if to is a directory, from is copied into it. A single
+ directory is copied into to if it exists; otherwise, a new
+ directory to is created and the contents of from are copied
+ into it. If multiple source files (directories) are given,
+ they are copied into the to directory, which is created if
+ neccessary.
+
+ The -x option sets the mode and modified time of the desti-
+ nation file (directory) to that of the source file (direc-
+ tory); the -g and -u try to set the group and user id,
+ respectively.
+
+ The -b option determines the size of a block that will be
+ transfered by a single block transfer process (defaults to
+ 128k).
+
+ The -p option determines the process parallelism configura-
+ tion, with fileprocs being the number of processes that han-
+ dle simultaneous file transfers, and blockprocs being the
+ number of processes that do the input / output (defaults to
+ 4:16).
+
+ SOURCE
+ https://bitbucket.org/k-vik/clone
+
+ SEE ALSO
+ fcp(1), dircp(1), pread(2), pwrite(2)
+
+ BUGS
+ Preserving the modification time of directories does not
+ work. Attributes are cloned at directory creation time;
+ meaning, if there's files to be copied in this directory,
+ this will update the parent modification time. Furthermore,
+
+ CLONE(1) CLONE(1)
+
+ all directories get the forced write permission, since not
+ having one would mean no new file creation.
+
--- a/mkfile
+++ b/mkfile
@@ -6,6 +6,9 @@
</sys/src/cmd/mkone
+README:
+ troff -man -N clone.man1 | ssam 'x/\n\n\n+/c/\n\n/' >README
+
install:V:
cp clone.man1 /sys/man/1/clone