Hi everybody..
I need to enter in bash mode and then run a command and this just in a single command line.
I tried : "bash ^M| somecommand" but nothing..
How do I do to simulate the return button just right after the bash command ?
Thanks.. (8 Replies)
Dear Unix Guru,
I have several directories as below
/home/user/
dir1
dir2
dir3
Each directory has different size. I want to print each directory size (Solaris command du -hs .)
Can you please guide me how to achieve this?
Thanks
Bala (2 Replies)
Hi All,
Can please let me know what is the difference between the single line mode and multi line mode in regular expresions?
Thanks,
Chidhambaram B (3 Replies)
Normally i would do this-
cd abc
ls -ltr
I wish to run above command in a single line, like this-
cd abc | ls -ltr
But above command doesn't works, it simply runs the second command, ignoring the 1st one.
:confused: (4 Replies)
dear all
in single user mode i want to change password in RHEL server 6.0 (Santiago)
i tired using passwd command it is not able to change.
how to change it.
thanks in advance (2 Replies)
Hello,
I'm set to go out to our M4000 to reset the XSCF password, since the person who set it up doesn't remember what password they setup.
I have all the steps, but the only question I can't find an answer to is around the mode switch. Right now, based on prtdiag, the mode switch is in... (2 Replies)
myenv.sh script sets LOG_DIR variable.
I can run the script and echo the variable in a single line as:
# First set LOG_DIR to some dummy 'NONE' value
$ export LOG_DIR="NONE"
$ echo ${LOG_DIR}
NONE
$ cat /tmp/bin/myenv.sh
export LOG_DIR="/tmp/log"
#The below command doesn't show the... (2 Replies)
Hi,
I have Solaris-10 OS on T5220. Both local disks were mirrored under SVM. Somehow when one disk gone bad (c0t1d0), other disk (c0t0d0) also got lot of bad block. We have readable data only on c0t0d0, but as soon as server comes after, it hangs when I run few commands because of read errors,... (1 Reply)
Hi All,
How can i run a single command on multiple servers with or without giving credentials.
I have a file(servers.txt) which has got list of servers and i want to run a command lsb_release -dr on all these servers and get output of those servers against each server.
I tried below code... (9 Replies)
Discussion started by: darling
9 Replies
LEARN ABOUT REDHAT
pivot_root
PIVOT_ROOT(8) Maintenance Commands PIVOT_ROOT(8)NAME
pivot_root - change the root file system
SYNOPSIS
pivot_root new_root put_old
DESCRIPTION
pivot_root moves the root file system of the current process to the directory put_old and makes new_root the new root file system. Since
pivot_root(8) simply calls pivot_root(2), we refer to the man page of the latter for further details.
Note that, depending on the implementation of pivot_root, root and cwd of the caller may or may not change. The following is a sequence for
invoking pivot_root that works in either case, assuming that pivot_root and chroot are in the current PATH:
cd new_root
pivot_root . put_old
exec chroot . command
Note that chroot must be available under the old root and under the new root, because pivot_root may or may not have implicitly changed the
root directory of the shell.
Note that exec chroot changes the running executable, which is necessary if the old root directory should be unmounted afterwards. Also
note that standard input, output, and error may still point to a device on the old root file system, keeping it busy. They can easily be
changed when invoking chroot (see below; note the absence of leading slashes to make it work whether pivot_root has changed the shell's
root or not).
EXAMPLES
Change the root file system to /dev/hda1 from an interactive shell:
mount /dev/hda1 /new-root
cd /new-root
pivot_root . old-root
exec chroot . sh <dev/console >dev/console 2>&1
umount /old-root
Mount the new root file system over NFS from 10.0.0.1:/my_root and run init:
ifconfig lo 127.0.0.1 up # for portmap
# configure Ethernet or such
portmap # for lockd (implicitly started by mount)
mount -o ro 10.0.0.1:/my_root /mnt
killall portmap # portmap keeps old root busy
cd /mnt
pivot_root . old_root
exec chroot . sh -c 'umount /old_root; exec /sbin/init'
<dev/console >dev/console 2>&1
SEE ALSO chroot(1), mount(8), pivot_root(2), umount(8)Linux Feb 23, 2000 PIVOT_ROOT(8)