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Top Forums UNIX for Dummies Questions & Answers add a string to a file without line break Post 302721957 by pamu on Friday 26th of October 2012 05:41:05 AM
Old 10-26-2012
Quote:
Originally Posted by stunn3r
but there are spaces before kernel .. its like " kernel ......" , and these spaces wont be constant for all the servers. any way to ignore these spaces ??
Code:
ssh ${_user}@${_ip} 'sudo /bin/sed  "s/^ *kernel.*/& elevator=noop/" /etc/grub.conf

This User Gave Thanks to pamu For This Post:
 

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GRUB-REBOOT(8)						  System Administration Utilities					    GRUB-REBOOT(8)

NAME
grub-reboot - set the default boot entry for GRUB, for the next boot only SYNOPSIS
grub-reboot [OPTION] MENU_ENTRY DESCRIPTION
Set the default boot menu entry for GRUB, for the next boot only. -h, --help print this message and exit -V, --version print the version information and exit --boot-directory=DIR expect GRUB images under the directory DIR/grub instead of the /boot/grub directory MENU_ENTRY is a number, a menu item title or a menu item identifier. Please note that menu items in submenus or sub-submenus require speci- fying the submenu components and then the menu item component. The titles should be separated using the greater-than character (>) with no extra spaces. Depending on your shell some characters including > may need escaping. More information about this is available in the GRUB Manual in the section about the 'default' command. REPORTING BUGS
Report bugs to <bug-grub@gnu.org>. SEE ALSO
grub-set-default(8), grub-editenv(1) The full documentation for grub-reboot is maintained as a Texinfo manual. If the info and grub-reboot programs are properly installed at your site, the command info grub-reboot should give you access to the complete manual. grub-reboot (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-REBOOT(8)
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