in my .bashrc I tried to setup some aliases.
is supposed to copy a local file to somehost via scp. However it seems that the command line substitution does not work here. However this works:
The above scp command can be handled like this which works for me:
I tried this on bash version:
GNU bash, version 3.2.39(1)-release (i386-redhat-linux-gnu)
I am curious why the first alias version doesn't work although the lst command seems to work well.
Thank you.
Say I write something like the following:
var1=1
var2=2
for int in 1 2
do
echo "\$var$int"
done
I want the output to be:
1
2
Instead I get something like:
$var1
$var2 (2 Replies)
Hi
I am looking for a unix command or a small shell script which can takes one parameter and then searches for the passed in the parameter in any or all files under say /home/dev/
Can anyone please help me on this? (3 Replies)
If one:
$ find -name 'some expression' -type f > newfile
and then subsequently wants to create an alias file from each pathname the find command retrieved and the > placed within 'newfile', how would one do this? Ideally, the newly created alias files would all be in one directory.
I am... (3 Replies)
Hi experts
I want to use the parameter substitution in the bash with ## to get
a=mfs1000 (not the "mfs" maybe other string and the length is not the same"
I want to get
1000
any help? I don't know use which pattern
I use
echo ${a##*}
It doesn't work
Lei (5 Replies)
i am passing input parameter 'one_two' to the script , the script output should display the result as below
one_1two
one_2two
one_3two
if
then
echo " Usage : <$0> <DATABASE> "
exit 0
else
for DB in 1 2 3
do
DBname=`$DATABASE | awk -F "_" '{print $1_${DB}_$2}`
done
fi (5 Replies)
Hi:
there is a shell script, with the name "foo", located in a bin directory. in the same time, there is an alias "foo='/path/bin/foo' ", just for convenience.
in my home directory, there is a different script with name "foo" too. (a modified version.)
while in my home directory, when I... (3 Replies)
I want to do something like this:
alias cd2="cd /data_saves/$(/opt/bin/util/getcustdb -i $@)"
Where /opt/bin/util/getcustdb is an inhouse script to lookup customer db name based on a provided id number
Then when I use the alias I can
cd2 4567
and have it run "/opt/bin/util/getcustdb -i... (3 Replies)
Can I specify a default value to a variable in AWK like BASH in one statement using parameter substitution?
BASH example:
argument=${$1-"default if empty"} (BASH)
I know I can do:
argument=$1; sub ( "^$", "default if empty", argument) (AWK)
Mike (13 Replies)
I am trying add a prefix variable(string) to command output.
sed parameter substitution is not working.
- I have found some issues on my end of testing,, please delete this thread for now. (1 Reply)
I make alias in bashrc file and typed it on prompt,
alias tes='echo "$1"xx"$2"xxx"$3"xxxx'
$ tes a b c
xxxxxxxxx a b c
what's happened to the shell here ?, and also,
alias tes='echo "$3"xx"$2"xxx"$1"xxxx
$ tes a b c
xxxxxxxxx a b c
anyone sincerely is to help me.. (2 Replies)
Discussion started by: abdulbadii
2 Replies
LEARN ABOUT REDHAT
scp
SCP(1) BSD General Commands Manual SCP(1)NAME
scp -- secure copy (remote file copy program)
SYNOPSIS
scp [-pqrvBC46] [-F ssh_config] [-S program] [-P port] [-c cipher] [-i identity_file] [-o ssh_option] [[user@]host1:]file1 [...]
[[user@]host2:]file2
DESCRIPTION
scp copies files between hosts on a network. It uses ssh(1) for data transfer, and uses the same authentication and provides the same secu-
rity as ssh(1). Unlike rcp(1), scp will ask for passwords or passphrases if they are needed for authentication.
Any file name may contain a host and user specification to indicate that the file is to be copied to/from that host. Copies between two
remote hosts are permitted.
The options are as follows:
-c cipher
Selects the cipher to use for encrypting the data transfer. This option is directly passed to ssh(1).
-i identity_file
Selects the file from which the identity (private key) for RSA authentication is read. This option is directly passed to ssh(1).
-p Preserves modification times, access times, and modes from the original file.
-r Recursively copy entire directories.
-v Verbose mode. Causes scp and ssh(1) to print debugging messages about their progress. This is helpful in debugging connection,
authentication, and configuration problems.
-B Selects batch mode (prevents asking for passwords or passphrases).
-q Disables the progress meter.
-C Compression enable. Passes the -C flag to ssh(1) to enable compression.
-F ssh_config
Specifies an alternative per-user configuration file for ssh. This option is directly passed to ssh(1).
-P port
Specifies the port to connect to on the remote host. Note that this option is written with a capital 'P', because -p is already
reserved for preserving the times and modes of the file in rcp(1).
-S program
Name of program to use for the encrypted connection. The program must understand ssh(1) options.
-o ssh_option
Can be used to pass options to ssh in the format used in ssh_config(5). This is useful for specifying options for which there is no
separate scp command-line flag. For example, forcing the use of protocol version 1 is specified using scp -oProtocol=1.
-4 Forces scp to use IPv4 addresses only.
-6 Forces scp to use IPv6 addresses only.
DIAGNOSTICS
scp exits with 0 on success or >0 if an error occurred.
AUTHORS
Timo Rinne <tri@iki.fi> and Tatu Ylonen <ylo@cs.hut.fi>
HISTORY
scp is based on the rcp(1) program in BSD source code from the Regents of the University of California.
SEE ALSO rcp(1), sftp(1), ssh(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), ssh_config(5), sshd(8)BSD September 25, 1999 BSD