SHAR(1) | General Commands Manual | SHAR(1) |
shar
— create a
shell archive of files
shar |
file ... |
The shar
command writes a
sh(1) shell script to the standard output
which will recreate the file hierarchy specified by the command line
operands. Directories will be recreated and must be specified before the
files they contain (the find(1) utility
does this correctly).
The shar
command is normally used for
distributing files by ftp(1) or
mail(1).
To create a shell archive of the program ls(1) and mail it to Rick:
cd ls shar `find . -print` | mail -s "ls source" rick
To recreate the program directory:
mkdir ls cd ls ... <delete header lines and examine mailed archive> ... sh archive
The shar
command appeared in
4.4BSD.
The shar
command makes no provisions for
special types of files or files containing magic characters. The
shar
command cannot handle files without a newline
('\n') as the last character.
It is easy to insert trojan horses into
shar
files. It is strongly recommended that all
shell archive files be examined before running them through
sh(1). Archives produced using this
implementation of shar
may be easily examined with
the command:
egrep -av '^[X#]' shar.file
January 31, 2019 | macOS 15.0 |