If I use a sh script, I get this code.
ssh user#host <<-'ENDSSH'
#command 1
#command 2
ENDSSH
What's the analogue in fish?
fish does not have heredocs (see https://fishshell.com/docs/current/design.html)
echo '#command 1
#command 2' | ssh user#host
or
set commands \
"command 1" \
"command 2"
printf "%s\n" $commands | ssh user#host
Related
In the following command, the first argument of sh command echo hey is ignored:
$ ssh localhost sh -c 'echo hey; echo ho'
ho
Why?
Your commandline is:
ssh localhost sh -c 'echo hey; echo ho'
ssh starts a shell on localhost and passes it the comandline:
sh -c echo hey; echo ho
The shell on localhost sees two commands. Both run fine.
The problem is that the first command is: sh -c echo hey
The option -c tells sh to execute the next argument. The next argument is echo. The extraneous hey argument is ignored.
To fix your problem, either change your quoting or just don't run the redundant shell:
ssh localhost "sh -c 'echo hey; echo ho'"
ssh localhost 'echo hey; echo ho'
The main confusion is probably that ssh concatenates all the non-option arguments it receives into a single string that it passes to the remote shell to execute.
I try to connect to the remote server by ssh and execute the command.
But given the situation, I can only execute a single command.
For example
ssh -i ~/auth/aws.pem ubuntu#server "echo 1"
It works very well, but I have a problem with the following
case1
ssh -i ~/auth/aws.pem ubuntu#server "cd /"
ssh -i ~/auth/aws.pem ubuntu#server "ls"
case2
ssh -i ~/auth/aws.pem ubuntu#server "export a=1"
ssh -i ~/auth/aws.pem ubuntu#server "echo $a"
The session is not maintained.
Of course, you can use "cd /; ls"
but I can only execute one command at a time.
...
Reflecting comments
developed a bash script
function cmd()
{
local command_delete="$#"
if [ -f /tmp/variables.current ]; then
set -a
source /tmp/variables.current
set +a
cd $PWD
fi
if [ ! -f /tmp/variables.before ]; then
comm -3 <(declare | sort) <(declare -f | sort) > /tmp/variables.before
fi
echo $command_delete > /tmp/export_command.sh
source /tmp/export_command.sh
comm -3 <(declare | sort) <(declare -f | sort) > /tmp/variables.after
diff /tmp/variables.before /tmp/variables.after \
| sed -ne 's/^> //p' \
| sed '/^OLDPWD/ d' \
| sed '/^PWD/ d' \
| sed '/^_/ d' \
| sed '/^PPID/ d' \
| sed '/^BASH/ d' \
| sed '/^SSH/ d' \
| sed '/^SHELLOPTS/ d' \
| sed '/^XDG_SESSION_ID/ d' \
| sed '/^FUNCNAME/ d' \
| sed '/^command_delete/ d' \
> /tmp/variables.current
echo "PWD=$(pwd)" >> /tmp/variables.current
}
ssh -i ~/auth/aws.pem ubuntu#server "cmd cd /"
ssh -i ~/auth/aws.pem ubuntu#server "cmd ls"
What better solution?
$ cat <<'EOF' | ssh user#server
export a=1
echo "${a}"
EOF
Pseudo-terminal will not be allocated because stdin is not a terminal.
user#server's password:
1
In this way you will send all commands to ssh as a single file script, so you can put any number of commands. Please note the way to use EOF between single quote '.
Using scp and interactively entering the password the file copy progress is sent to the console but there is no console output when using sshpass in a script to scp files.
$ sshpass -p [password] scp [file] root#[ip]:/[dir]
It seems sshpass is suppressing or hiding the console output of scp. Is there a way to enable the sshpass scp output to console?
After
sudo apt-get install expect
the file send-files.exp works as desired:
#!/usr/bin/expect -f
spawn scp -r $FILES $DEST
match_max 100000
expect "*?assword:*"
send -- "12345\r"
expect eof
Not exactly what was desired, but better than silence:
SSHPASS="12345" sshpass -e scp -v -r $FILES $DEST 2>&1 | grep -v debug1
Note that -e is considered a bit safer than -p.
Output:
Executing: program /usr/bin/ssh host servername, user username, command scp -v -t /src/path/dst_file.txt
OpenSSH_6.6.1, OpenSSL 1.0.1i-fips 6 Aug 2014
Authenticated to servername ([10.11.12.13]:22).
Sending file modes: C0600 590493 src_file.txt
Sink: C0600 590493 src_file.txt
Transferred: sent 594696, received 2600 bytes, in 0.1 seconds
Bytes per second: sent 8920671.8, received 39001.0
In this way:
output=$(sshpass -p $PASSWD scp -v $filename root#192.168.8.1:/root 2>&1)
echo "Output = $output"
you redirect the console output in variable output.
Or, if you only want to see the console output of scp command, you should add only -v command in your ssh pass cmd:
sshpass -p $PASSWD scp -v $filename root#192.168.8.1:/root
I have a shell script to do the following things
sudo as a user (johnsmith) and perform few things
Exit from that user and check url status
If status is not equal to 1 , ssh to one more server and execute a
script.
But when I am running it, the lines inside 'ENDBASH' are not getting executed at all.
#!/bin/ksh
echo "Outside ENDBASH ${###*/}"
sudo -u johnssmith bash <<'ENDBASH'
echo "Inside ENDBASH ${###*/}"
#Obtaining the new version file
for file in "${###*/}"
do
if echo "$file" | grep -E "abc_cde_efg"; then
echo "Version found: $file"
else
echo "Version not found"
fi
done
exit
ENDBASH
urlArray=('http://server:port/servicename1/services/servicename1?wsdl' 'http://server:port/servicename2/services/servicename2?wsdl')
status=0
for url in "${urlArray[#]}"
do
result=`curl -s $url`
if (echo $result | grep '<?xml' >/dev/null 2>&1); then
service=$(echo $url | cut -d"/" -f4)
echo "$service is Running"
else
service=$(echo $url | cut -d"/" -f4)
echo "$service is not Running"
status=1
fi
done
if [ $status != 1 ] ; then
ssh -t username#hostname /home/dev_was/test1.sh
fi
You need to explicitly pass the arguments received by your script to the internal script:
sudo -u johnssmith bash -s "$#" <<'ENDBASH'
dThe following works as expected. But how do I insert the data into forth database instead of default "0" from command prompt?
# echo -n "testing" | /home/shantanu/redis-2.4.2/src/redis-cli -x set my_pass
OK
# echo -n "testing" | /home/shantanu/redis-2.4.2/src/redis-cli -x select 4; set my_pass
(error) ERR wrong number of arguments for 'select' command
Just use the -n argument to choose DB number. It available since Redis 2.4.2.
echo -n "testing" | redis-cli -n 4 -x set my_pass
or
redis-cli -n 4 set my_pass testing
Launch the CLI by issuing command:
redis-cli
Then use the following command:
select <db number>
For example:
select 4