alias:显示系统上定义的所有别名 alias CMDALIAS='COMMAND [options] [arguments]':CMDALIAS别名叫什么,等于某个实实在在的命令。 ualias CMDALIAS:撤销别名,CMDALIAS别名名字。 \CMD:当定义的命令别名加了选项跟命令本身相同,想使用命令本身加\反斜杠。 可以带选项和参数,如果命令中间有空格最
If you want to get rid of an alias, just use theunaliascommand: unalias ll The alias is now removed. You can list all of your configured aliases by passing thealiascommand without any arguments: alias To temporarily bypass an alias (say we aliasedlstols -a), we can type: \ls This wi...
./arguments.sh The output displays descriptive messages for each argument used. Bash Function Return Bash functions differ from most programming languages when it comes to returning a value from a function. By default, bash returns the exit status of the last executed command in the function's b...
You can define functions in your .bashrc file with your other bash alias. In a shell script, the function can be defined anywhere before being called for execution and you can source your function definitions by using the source or dot command. A function is executed when it’s called by ...
alias Used to define an alias for a specific command. bg Run a job in background mode. bind Used to bind a keyboard sequence. break Used to exit from a running loop in script. cd Change the directory to another directory. command Run a specific command without the normal shell lookup. ...
unalias Remove alias definitions for specified alias names. uname Show system information. uncompress Uncompress the files compressed with the compress command. unexpand Convert spaces to tabs for a specified file. unicode_start Put keyboard and console in Unicode mode. unicode_stop Revert keyboard and...
Positional arguments Example: vim-replace:command:ag -l "$0" && vim -c "bufdo %s/$0/$1/gc" $(ag -l "$0")enable_positional_arguments:true The above alias allows you to do the following: vim-replace old_text new_text This replaces$0,$1etc with the arguments you send to your alias...
# 设置别名aliasname='command [option] [argument]'# 取消指定的别名设置unaliasname# 列出设置的别名alias# 转义别名aliasrm='rm -i'\rm# 转义别名而使用原始的命令[root@localhost ~]# rm tmp.txtrm: remove regularfile`tmp.txt'? n[root@localhost ~]# \rm tmp.txt # \rm,使用 \ 对别名进行转义...
我们执行一个指令的时候,这个指令可能会由文件读入资料,经过处理之后,再将数据输出到屏幕上。 在上图当中, standard output 与 standard error output 分别代表『标准输出 (STDOUT)』与『标准错 误输出 (STDERR)』, 这两个玩意儿默认都是输出到屏幕上面来的啊!那么什么是标准输出与标准 错误输出呢?
OPTIONS In addition to the single-character shell options documented in the description of the set builtin command, bash inter- prets the following options when it is invoked: -c string If the -c option is present, then commands are read from string. If there are arguments after the string...