Due to some constraints, i have to transfer local file to remote ssh with only echo and cat command and here-document.

I’ve tried:

#!/bin/bash
SSH_CMD=xxx # suppose `SSH_CMD` is my ssh command
w="$(cat word)"
SSH_CMD <<EOF1
cd /data00
touch for-test
echo $w >> for-test
echo "abc" >> for-test
EOF1

And word is a file with multiple lines:

#!/bin/bash
line1
line2
line3

After i run the script, the /data00/for-test file only contains one line: abc, quite strange.