Я определяю функцию в .bash_aliases файле и включаю ее в мой .bashrc файл.
Мой .bash_aliases файл:
function dmidecode() {
if [[ $1 == -t && $2 == 1 ]]; then
cat ~/some_file
else
command dmidecode "$@"
fi
}
Функция: когда кто-то выполняет команду: dmidecode -t 1, bash читает содержимое из ~/some_file и возвращает.
Мой .bashrc файл:
# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples
# If not running interactively, don't do anything
case $- in
*i*) ;;
*) return;;
esac
# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth
# append to the history file, don't overwrite it
shopt -s histappend
# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000
# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize
# If set, the pattern "**" used in a pathname expansion context will
# match all files and zero or more directories and subdirectories.
#shopt -s globstar
# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"
# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
debian_chroot=$(cat /etc/debian_chroot)
fi
# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
xterm-color|*-256color) color_prompt=yes;;
esac
# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes
if [ -n "$force_color_prompt" ]; then
if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
# We have color support; assume it's compliant with Ecma-48
# (ISO/IEC-6429). (Lack of such support is extremely rare, and such
# a case would tend to support setf rather than setaf.)
color_prompt=yes
else
color_prompt=
fi
fi
if [ "$color_prompt" = yes ]; then
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
unset color_prompt force_color_prompt
# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
;;
*)
;;
esac
# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
alias ls='ls --color=auto'
#alias dir='dir --color=auto'
#alias vdir='vdir --color=auto'
alias grep='grep --color=auto'
alias fgrep='fgrep --color=auto'
alias egrep='egrep --color=auto'
fi
# colored GCC warnings and errors
#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'
# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'
# Add an "alert" alias for long running commands. Use like so:
# sleep 10; alert
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'
# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.
if [ -f ~/.bash_aliases ]; then
. ~/.bash_aliases
fi
# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
if [ -f /usr/share/bash-completion/bash_completion ]; then
. /usr/share/bash-completion/bash_completion
elif [ -f /etc/bash_completion ]; then
. /etc/bash_completion
fi
fi
Это работает, когда я в интерактивном режиме выполняю команду, набрав команду в оболочке bash.Однако, это не работает, когда я пытался выполнить его удаленно.Там написано dmidecode command not found (я не установил инструмент dmidecode, но я пишу функцию, чтобы указать куда-нибудь.).Удаленное соединение хорошо, потому что я могу удаленно выполнять такие команды, как "ls" или "pwd".Это просто не работает для функций, которые я написал.
И я попытался поместить shopt -s expand_aliases в файл .bashrc.Это также не решает проблему.
К вашему сведению, вот мой тестовый код для удаленного выполнения команд:
from paramiko import client
class ssh:
client = None
def __init__(self, address, username, password, port=22):
print("Connecting to server.")
self.client = client.SSHClient()
self.client.set_missing_host_key_policy(client.AutoAddPolicy())
self.client.connect(address, port, username=username, password=password, look_for_keys=False)
def sendCommand(self, command):
if(self.client):
stdin, stdout, stderr = self.client.exec_command(command)
while not stdout.channel.exit_status_ready():
# Print data when available
if stdout.channel.recv_ready():
alldata = stdout.channel.recv(1024)
prevdata = b"1"
while prevdata:
prevdata = stdout.channel.recv(1024)
alldata += prevdata
print(str(alldata, "utf8"))
else:
print("Connection not opened.")
def main():
connection = ssh("my_ip", "username", "password", 22)
connection.sendCommand("dmidecode -t 1") # this doesn't work, "dmidecode command not found"
connection.sendCommand("pwd") # this works
if __name__ == "__main__":
main()
Есть идеи по этому поводу?Заранее спасибо.