Replacing a character string in a file Post: 92753

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Top Forums Shell Programming and Scripting Replacing a character string in a file Post 92753 by tmarikle on Wednesday 14th of December 2005 12:56:40 PM

12-14-2005

Registered User

Sorry, I only caught the first mistake. your other two lines are the same.

Code:

-v oldamt=$prvamt \ -v newamt=$payin \
-v size=$cursize \
-v newday=$TODAY \ 'BEGIN {OFS="|"}

There isn't any need for these slashes unless you are moving the text following to a new line.

Code:

-v oldamt=$prvamt \
-v newamt=$payin \
-v size=$cursize \
-v newday=$TODAY \
'BEGIN {OFS="|"}
...

They are really here in your script to make your command more readable (slashes are also used to "escape" special characters that will be misinterpreted as is the case with your -F parameter). One more point, don't put any spaces after the slash when it's used to continue a command on a new line as this will cause the shell to believe that you want to escape a space; the rest of your command will be ignored.

Note: The -F parameter uses a slash to change how the verticle bar is understood by the shell. Normally it's used as a pipe, now you are telling awk that it is a field separator.

tmarikle

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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)