翻阅了下Bash的man手册,发现可以通过设置 expand_aliases选项来打开alias展开的功能,默认在非交互式Shell下是关闭的(什么是交互式登录Shell)。 修改下util.sh,打开这个选项就Ok了: #!/bin/bash ... # Expand aliases in script shopt -s expand_aliases alias ssh='ssh -o StrictHostKeyChecking=no -o LogLe...
-1 别名和函数不等价...echo -e '#!/bin/bash\nshopt -s expand_aliases\nalias asrc='\''echo "${BASH_SOURCE[0]}"'\'' # note the '\''s\nfunction fsrc(){ echo "${BASH_SOURCE[0]}";}'>>file2&&echo -e '#!/bin/bash\n. file2\nalias rl='\''readlink -f'\''\nrl $(a...
不论是 manpage 还是 POSIX 文档中,我都没有找到任何与之相关的说明。甚至在 TLDP 的 Bash Guide for Beginners 中,多个例子都分明把 trap 放在了脚本的中间。最后我在这篇文档中找到了下面这句经常被误读的话: Normally, all traps are set before other executable code in the shell script is encountered,...
-a display all locations containing an executable named NAME; includes aliases,builtins,andfunctions,ifandonlyif the`-p' option is not also used -f suppress shell function lookup -P force a PATH search for each NAME, even if it is an alias, builtin, or function, and returns the name o...
您缺少函数名称和函数的开放支架之间的空格。以下应该有效: function chmodwp { find ${WP_ROOT} -execchown${WP_OWNER}:${WP_GROUP} {} \; ... } 看http://www.tldp.org/ldp/abs/html/functions.html.。当涉及到空白时,Bash一般有些敏感。
characters for filename generationhashhashalias-thashstatDisplay hashed commands (tracked aliases)hash...
characters for filename generationhashhashalias-thashstatDisplay hashed commands (tracked aliases)hash...
原著链接:http://tldp.org/LDP/abs/html/ 原作:Mendel Cooper 原著版本:Revision 10, 10 Mar 2014译著早期译著连接:http://www.linuxsir.org/bbs/thread256887.html 译者:杨春敏 黄毅 译著版本:Revision 3.7, 23 Oct 2005 最新Revision 10 由 Linux Story 社区的 imcmy 同学发起并组织翻译。
includes aliases, builtins, and functions,ifand onlyifthe `-p'option is not also used-f suppress shellfunctionlookup-P force a PATH searchforeach NAME, evenifit is an alias, builtin, orfunction, and returns the name of the diskfilethat would be executed-p returns either the name of th...
Customization:Users can customize their Bash environment using shell variables and aliases to streamline their workflow. Understanding Bash is essential for anyone looking to harness the full potential of shell scripting. 5 types of shells Here’s a deeper dive into the five main types of shells: ...