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Below are summaries of the command line syntax for the programs discussed in this
manual.
find [file...] [expression]
find searches the directory tree rooted at each file name file
by evaluating the expression on each file it finds in the tree.
find considers the first argument that begins with -, (,
), ,, or ! to be the beginning of the expression;
any arguments before it are paths to search, and any arguments after it are the rest of
the expression. If no paths are given, the current directory is used. If no expression is
given, the expression -print is used.
find exits with status 0 if all files are processed successfully, greater
than 0 if errors occur.
See section find Primary Index, for a
summary of all of the tests, actions, and options that the expression can contain.
find also recognizes two options for administrative use:
- --help Print a summary of the command-line argument format and exit. --version
Print the version number of
find and exit.
locate [option...] pattern...
- --database=path -d path Instead of searching the
default file name database, search the file name databases in path, which is a
colon-separated list of database file names. You can also use the environment variable
LOCATE_PATH
to set the list of database files to search. The option overrides the environment variable
if both are used.
- --help Print a summary of the options to
locate and exit. --version
Print the version number of locate and exit.
updatedb [option...]
- --localpaths='path...' Non-network directories to put in the database.
Default is /.
- --netpaths='path...' Network (NFS, AFS, RFS, etc.) directories to put
in the database. Default is none.
--prunepaths='path...' Directories
to not put in the database, which would otherwise be. Default is /tmp /usr/tmp
/var/tmp /afs.
--output=dbfile The database file to build. Default is
system-dependent, but typically /usr/local/var/locatedb.
--netuser=user The user to search network directories as, using su(1).
Default is daemon.
xargs [option...] [command [initial-arguments]]
xargs exits with the following status:
- 0 if it succeeds 123 if any invocation of the command exited with status
1-125 124 if the command exited with status 255 125 if the command is killed
by a signal 126 if the command cannot be run 127 if the command is not found
1 if some other error occurred.
- --null -0 Input filenames are terminated by a null character instead of by
whitespace, and the quotes and backslash are not special (every character is taken
literally). Disables the end of file string, which is treated like any other argument.
- --eof[=eof-str] -e[eof-str] Set the end of file
string to eof-str. If the end of file string occurs as a line of input, the
rest of the input is ignored. If eof-str is omitted, there is no end of file
string. If this option is not given, the end of file string defaults to _.
--help
Print a summary of the options to xargs and exit.
--replace[=replace-str] -i[replace-str] Replace
occurences of replace-str in the initial arguments with names read from
standard input. Also, unquoted blanks do not terminate arguments. If replace-str
is omitted, it defaults to {} (like for find -exec). Implies -x
and -l 1.
--max-lines[=max-lines] -l[max-lines] Use at most max-lines
nonblank input lines per command line; max-lines defaults to 1 if omitted.
Trailing blanks cause an input line to be logically continued on the next input line, for
the purpose of counting the lines. Implies -x.
--max-args=max-args -n max-args Use at most max-args
arguments per command line. Fewer than max-args arguments will be used if the
size (see the -s option) is exceeded, unless the -x option is
given, in which case xargs will exit.
--interactive -p Prompt the user about whether to run each command line
and read a line from the terminal. Only run the command line if the response starts with y
or Y. Implies -t.
--no-run-if-empty -r If the standard input does not contain any
nonblanks, do not run the command. By default, the command is run once even if there is no
input.
--max-chars=max-chars -s max-chars Use at most max-chars
characters per command line, including the command and initial arguments and the
terminating nulls at the ends of the argument strings.
--verbose -t Print the command line on the standard error output before
executing it.
--version Print the version number of xargs and exit.
--exit -x Exit if the size (see the -s option) is exceeded.
--max-procs=max-procs -P max-procs Run up to max-procs
processes at a time; the default is 1. If max-procs is 0, xargs
will run as many processes as possible at a time.
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