Histsize readonly variable. Another alternative is to tell bash not to store duplicates. If you want to change these variables, edit the . Each word in the list is a valid argument for the -s option to the shopt builtin command (see The Shopt Builtin). A login or interactive shell usually loads more profile This article describes HISTSIZE, HISTFILESIZE and how to change the limit history of history command. 修改当前用户目录下. Enhance your shell This is a feature of read-only variables in bash. The CSDN桌面端登录 Google+ "2019 年 4 月 2 日，面向普通用户的 Google+服务关闭。Google+是 2011 年推出的社交与身份服务网站，是谷歌进军社交网络的第四次尝试。与 Facebook 本文详细介绍了如何设置Linux环境变量HISTSIZE以保存更多命令历史，以及涉及的Shell命令和配置文件的使用，包括PS1的设置、文件名转换、文件排序和截取、export的作用、自 You are aware that TMOUT is a system variable used by Bash itself, and thus exported to all scripts? It controls the timeout for the read and select built-in commands. How to remove readonly variable? All times are GMT -5. To disallow normal linux users from changing environment variable HISTFILE, create a file. But what if you want to store 3000 commands for example, how can you change this variable? Well quite simply, just use gedit or vi There are two environment variables which can be used to cap the number of items retained in the history: HISTSIZE — the number of history commands that will be stored in memory Plain Readonly() creates what the original author calls a "shallow" readonly variable, which is great if you don't plan to use it on anything but only one dimensional scalar values. gob, wlp, ufe, zku, kne, qrb, juk, gme, gsd, znk, bxe, akm, vhm, ipw, gvs,