XARGS linux command manual

XARGS(1L)                                                         XARGS(1L)

       xargs - build and execute command lines from standard input

       xargs   [-0prtx]   [-E   eof-str]   [-e[eof-str]]   [-I   replace-str]
       [-i[replace-str]] [-L max-lines]  [-l[max-lines]]  [-n  max-args]  [-s
       max-chars]      [-P      max-procs]     [--null]     [--eof[=eof-str]]
       [--replace[=replace-str]]  [--max-lines[=max-lines]]   [--interactive]
       [--max-chars=max-chars]  [--verbose]  [--exit] [--max-procs=max-procs]
       [--max-args=max-args] [--no-run-if-empty] [--version]  [--help]  [com-
       mand [initial-arguments]]

       This  manual  page  documents  the  GNU version of xargs.  xargs reads
       arguments from the standard input, delimited by blanks (which  can  be
       protected  with  double  or single quotes or a backslash) or newlines,
       and executes the command (default is /bin/echo) one or more times with
       any  initial-arguments followed by arguments read from standard input.
       Blank lines on the standard input are ignored.

       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.  Useful when
              arguments might contain white  space,  quote  marks,  or  back-
              slashes.   The  GNU find -print0 option produces input suitable
              for this mode.

       --eof[=eof-str], -E 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 or if -E option's  argument  is
              an  empty  string,  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, -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, -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.
              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.  Normally, 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.  The default is as large as
              possible, up to 20k characters.

       --verbose, -t
              Print the command line on the standard error output before exe-
              cuting it.

              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.  Use the -n option with -P; otherwise chances are that
              only one exec will be done.

       find(1L), locate(1L), locatedb(5L), updatedb(1) Finding Files (on-line
       in Info, or printed)