I need to read a file fron nth to n+m line by line using bash
ie
while read line
do
# soem stuff
done <<file
But The file is so big I am only intersted in reading ceratin portion of the file ie from nth line to mth line where m is alwasy greatr than n (2 Replies)
I have variable $2 whose value is expdp_SDW_MSTR_VMDB.par
I want to replace three characters from right (par) with (log)
Input --> expdp_SDW_MSTR_VMDB.par
Output --> expdp_SDW_MSTR_VMDB.log
Thanks
Deep (2 Replies)
Hi - I frequently run commands, and transfer files to/from a host that uses SecurID ssh authentication. It is a real pain to have to enter the authentication information every time I want to interact with this host. I am wondering if there is a way to establish a one-time ssh connection to this... (2 Replies)
The clear command specifically says it can only clear the entire terminal display. There are no arguments. So I'm wondering if there are any work arounds.
Carriage return does not work for this as it only moves the cursor to the beginning of the line we're on. And obviously NL only goes down. If... (1 Reply)
Hello i have 2 files:
a.out
10.1.1.1 james.franco
10.1.1.3 google.gol
10.1.1.14 yahoo.bol
b.out
10.1.1.1
10.1.1.3
10.1.1.45
I need to see an output just with:
10.1.1.1 james.franco
10.1.1.3 google.gol
Thankz in advance!! (2 Replies)
I would like to create console application in c# to automate the process of downloading some files from a SFTP server to my local hard drive at a set time each week/day.
SFTP Server installed OpenSSH for windows and client machine also.
Any ideas how I could do such a task? or sample code.
... (0 Replies)
Hi All,
I am calling a shell script from another shell script, however, it only executes part of it (the echo commands only). What could be some causes for that?
For example:
ShellScriptA.sh:
...
...
...
. ShellScriptB.sh
ShellScriptB.sh contents:
echo date
echo... (7 Replies)
Hi
I have numerous files names
product_host_result_B1000842.txt
product_host_result_B1000847.txt
product_host_result_C1000842.txt
product_host_result_C1000848.txt
etc. I need them renamed so that the 'product_host_result' becomes 'output_product_host' but the rest of the filename is... (6 Replies)
Hi All,
I have a pretty demanding requirement for an SFTP script I have been trying to put together.
I have nearly 100 files (all with the names staring with T_PROD) generated in my local server daily. I need to transfer each of these files to a remote server via SFTP (that's a client... (6 Replies)
I am working on a shell script where after making sftp connection to a remote server the file are being transferred. The problem is how to capture return code for the file which is missing at the remote location. I have tried to capture the return code which return value of "0" even the transfer of... (4 Replies)
Discussion started by: Khan28
4 Replies
LEARN ABOUT DEBIAN
viewsu
VIEW-OS(1) General Commands Manual VIEW-OS(1)NAME
viewsu - change (virtual) user ID or become (virtual) superuser
SYNOPSIS
viewsu [options] [username]
DESCRIPTION
The viewsu command is used to become another user during a login session. Invoked without a username, viewsu defaults to becoming the supe-
ruser. The optional argument - may be used to provide an environment similar to what the user would expect had the user logged in directly.
This command is the View-OS counterpart of the su(1) command. The value of $PATH is reset to /bin:/usr/bin for normal users, or
/sbin:/bin:/usr/sbin:/usr/bin for the superuser. This may be changed with the ENV_PATH and ENV_SUPATH definitions in /etc/login.defs.
OPTIONS
The options which apply to the viewsu command are:
-c, --command COMMAND
Specify a command that will be invoked by the shell using its -c.
-, -l, --login
Provide an environment similar to what the user would expect had the user logged in directly.
When - is used, it must be specified as the last viewsu option. The other forms (-l and --login) do not have this restriction.
-s, --shell SHELL
The shell that will be invoked.
The invoked shell is chosen from (highest priority first):
o The shell specified with --shell.
o The shell indicated in the /etc/passwd entry for the target user.
o /bin/sh if a shell could not be found by any above method.
SEE ALSO su(1), linux.defs(5)AUTHORS
View-OS is a project of the Computer Science Department, University of Bologna. Project Leader: Renzo Davoli.
<http://www.sourceforge.net/projects/view-os>
Howto's and further information can be found on the project wiki <wiki.virtualsquare.org>.
NOTE
Most part of the text is taken from su(1).
VIEW-OS: a process with a view August 5, 2009 VIEW-OS(1)