set--"${POSITIONAL_ARGS[@]}"# 将数组里的参数设置为当前 shell 的位置参数 echo"FILE EXTENSION = ${EXTENSION}"echo"SEARCH PATH = ${SEARCHPATH}"echo"DEFAULT = ${DEFAULT}"echo"Number files in SEARCH PATH with EXTENSION:"$(ls-1"${SEARCHPATH}"/*."${EXTENSION}" | wc -l) if [[ -n ...
PATH:会依据 UID 决定 PATH 变量要不要含有 sbin 的系统指令目录; MAIL:依据账号设定好使用者的 mailbox 到 /var/spool/mail/账号名; USER:根据用户的账号设定此一变量内容; HOSTNAME:依据主机的 hostname 指令决定此一变量内容; HISTSIZE:历史命令记录笔数。CentOS7.x 设定为 1000 ; umask:包括 root 默认...
--append Append to targetfilewhen uploading (F/SFTP)--basic Use HTTP Basic Authentication (H)--cacert FILE CA certificate to verify peer against (SSL)--capath DIR CA directory to verify peer against (SSL)-E, --cert CERT[:PASSWD] ...
提示符往往是一串前缀,最后以一个美元符号$结尾,用户可以在这个符号后面输入各种命令。 [user@hostname] $ 上面例子中,完整的提示符是[user@hostname] $,其中前缀是用户名(user)加上@,再加主机名(hostname)。比如,用户名是bill,主机名是home-machine,前缀就是bill@home-machine。 注意,根用户(root)的提示符,...
Add this directory to yourPATH(for bash, add this to your~/.bashrc): exportPATH="$HOME/.cabal/bin:$PATH" Log out and in again, and verify that your PATH is set up correctly: $whichshellcheck ~/.cabal/bin/shellcheck On native Windows, thePATHshould already be set up, but the system...
alias name = 'command' alias name = 'command arg1 arg2' alias name = '/path/to/script' alias name = '/path/to/script.pl arg1' 举个例子,输入下面命令并回车就会为常用的clear(清除屏幕)命令创建一个别名c: alias c = 'clear' 然后输入字母c而不是clear后回车就会清除屏幕了: ...
通过Dockerfile只做Docker镜像时,需要用到Dockerfile的命令,收集整理如下,以便后续翻阅参考。 FROM 功能为指定基础镜像,并且必须是第一条指令。 如果不以任何镜像为基础,那么写法为:FROM scratch。 同时意味着接下来所写的指令将作为镜像的第一层开始 语法: ...
Here we create a symbolic link from the bash script in the repo to/usr/local/bin/which is assumed to be in the current$PATH: ln -s "$(pwd)/fpp" /usr/local/bin/fpp fpp --help # should work! Add-ons For tmux users, you can additionally installtmux-fppwhich adds a key combination...
A. No. If needed just once in a while, useM-/to (in the words of the bash man page) attempt file name completion on the text to the left of the cursor. This will circumvent any file type restrictions put in place by the bash completion code. If needed more regularly, see the next...
#!/bin/bash #get the month, day, and year of the current date TIME_OF_BACKUP=`date +%m-%d-%y` #create a backup file using the current date in its name DESTINATION=/path/[BACKUP FOLDER]-$TIME_OF_BACKUP.tar.gz #the folder that contains the files that we want to backup TARGET_FOLD...