What is wrong with tiny (g)awk line ?? Post: 302606416

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1. Shell Programming and Scripting

what is wrong with this line?

system ("$ssh '$perf_stats' < temp_pipe 2>&1 &"); I need to start and interact with my executable defined by perf_stats on a remote machine but not change my command line to that of the remote machine. temp_pipe is a node created by mknod -f temp_pipe

2. Shell Programming and Scripting

what is wrong with this expr line

It keeps giving me expr syntax error. expr "${etherline }" : ’.*no match found’ 2>&1 >/dev/null Thanks in advance.

3. Shell Programming and Scripting

what's wrong with my awk line?

] && { echo "The free mem need to be more than 2G" }

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grub-render-label

GRUB-RENDER-LABEL(1)                                               User Commands                                              GRUB-RENDER-LABEL(1)

NAME

       grub-render-label - generate a .disk_label for Apple Macs.

SYNOPSIS

       grub-render-label [OPTION...] [OPTIONS]

DESCRIPTION

       Render Apple .disk_label.

       -b, --bgcolor=COLOR
              use COLOR for background

       -c, --color=COLOR
              use COLOR for text

       -f, --font=FILE
              use FILE as font (PF2).

       -i, --input=FILE
              read text from FILE.

       -o, --output=FILE
              set output filename. Default is STDOUT

       -t, --text=STRING
              set the label to render

       -v, --verbose
              print verbose messages.

       -?, --help
              give this help list

       --usage
              give a short usage message

       -V, --version
              print program version

       Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

REPORTING BUGS

       Report bugs to <bug-grub@gnu.org>.

SEE ALSO

       The  full  documentation  for grub-render-label is maintained as a Texinfo manual.  If the info and grub-render-label programs are properly
       installed at your site, the command

              info grub-render-label

       should give you access to the complete manual.

grub-render-label (GRUB) 2.02-2ubuntu8.3                             July 2018                                                GRUB-RENDER-LABEL(1)