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Full Discussion: add a string to a file without line break
Top Forums UNIX for Dummies Questions & Answers add a string to a file without line break Post 302721517 by stunn3r on Friday 26th of October 2012 02:23:55 AM
Old 10-26-2012
Hi,

The command with argument " -i" is working fine on local system but not working when I try to put it in my script. Here:
Code:
#!/bin/bash

GRUB="/home/wadhwaso/test"
_pair="$(</home/wadhwaso/login.txt)"
Server_info="/home/wadhwaso/server_info"
for e in $_pair
do
             # extract user and ips for each $e in $_pair
        IFS='@'
        set -- $e
        _user="$1"
        _ip="$2"

        sleep 2
        echo "Connecting to server '${_ip}' via SSH..."
        ssh ${_user}@${_ip} "sudo /bin/sed -i '$s/$/ elevator=noop/' /home/wadhwaso/test "
        if [ $? -eq 0 ]; then
        echo "completed on ${_ip}" | tee -a "${Server_info}"
        else
        echo "not completed on ${_ip}" | tee -a "${Server_info}"
        fi
done

Can you see why this is happening. Also this is not working too:

Code:
ssh user@server  "sed -i '$s/$/ elevator=noop/' /home/wadhwaso/test"

Last edited by stunn3r; 10-26-2012 at 03:26 AM.. Reason: formatting
 

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LEARN ABOUT OSX

installgrub

installgrub(1M) 														   installgrub(1M)

NAME

       installgrub - install GRUB in a disk partition or a floppy

SYNOPSIS

       /sbin/installgrub [-fm] stage1 stage2 raw-device

       The installgrub command is an -only program. GRUB stands for GRand Unified Bootloader.

       installgrub  installs  GRUB  stage  1  and  stage  2  files on the boot area of a disk partition. If you specify the -m option, installgrub
       installs the stage 1 file on the master boot sector of the disk.

       The installgrub command accepts the following options:

       -f

	   Suppresses interaction when overwriting the master boot sector.

       -m

	   Installs GRUB stage1 on the master boot sector interactively.

       The installgrub command accepts the following operands:

       stage1

	   The name of the GRUB stage 1 file.

       stage2

	   The name of the GRUB stage 2 file.

       raw-device

	   The name of the device onto which GRUB code is to be installed. It must be a character device that is readable and writable.  For  disk
	   devices,  specify  the  slice  where  the  GRUB  menu  file	is  located.  (For Solaris it is the root slice.) For a floppy disk, it is
	   /dev/rdiskette.

       Example 1: Installing GRUB on a Hard Disk Slice

       The following command installs GRUB on a system where the root slice is c0d0s0:

       example# /sbin/installgrub /boot/grub/stage1 
		/boot/grub/stage2 /dev/rdsk/c0d0s0

       Example 2: Installing GRUB on a Floppy

       The following command installs GRUB on a formatted floppy:

       example# mount -F pcfs /dev/diskette /mnt
       # mkdir -p /mnt/boot/grub
       # cp /boot/grub/* /mnt/boot/grub
       # umount /mnt
       # cd /boot/grub
       # /sbin/installgrub stage1 stage2 /dev/rdiskette

       /boot/grub

	   Directory where GRUB files reside.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       boot(1M), fdisk(1M), fmthard(1M), kernel(1M), attributes(5)

       Installing GRUB on the master boot sector (-m option) overrides any boot manager currently installed on the machine. The system will always
       boot the GRUB in the Solaris partition regardless of which fdisk partition is active.

								    24 May 2005 						   installgrub(1M)
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