bash history

, "mybox.mydomain.com ") 06 \ j number of processes suspended by ^ Z in this shell 07 \ l terminal device name of the shell (for example, "ttyp4 ") 08 \ n line break 09 \ r carriage return 10 \ s shell Name (such as "bash ") 11 \ t 24-hour time (for example, "23:01:01 ") 12 \ T 12-hour time (for example, "11:01:01 ") 13 \ @ 12-hour time with am/pm 14 \ u User Name 15 \ v bash version (e.g. 2.04) 16 \ V

Copy codeThe Code is as follows: In the C # Web program, for example, for the page button writing back to the previous page codeCopy codeThe Code is as follows:This. RegisterClientScriptBlock ("E", " "); Among them, history. go (-2) should be written as-2. Because the page has been refreshed once before the button event is triggered, it should be-2.Copy codeThe Code is as follows:Response. Write (" "); It must also be written as "-2 ". It is different

instruction-History can't do, when your The target is ' record-full'(GDB) record function-call-History can't do, when your The target is ' record-full'And the only target type available isFull, the other documented type"Btrace"Fails with"Target does not support branch tracing."So quite possibly it just isn'T supported for the target, but as it's a mainstream modern one(GDB7.6.1-ubuntu, on AMD64 Linux Mint"

Every command we operate is often recorded by the machine, and some sensitive operation commands are blocked for security purposes.Set the default number of records in Linux:Temporary effect:Export histsize = 5HistoryValid permanently:Echo "Export histseze = 5">/etc/profile./Etc/profile or source/etc/profile // The configuration must take effect.Control history files: variable of the number of historical records in the command lineCat ~ /. Bash_histor

About the history of jquery jquery History Plugin helps you-support back/forward buttons and bookmarks in your JavaScript applications. Historical jquery Plug-ins can be To help you get back to your JavaScript support applications/forward buttons and bookmarks. You can store the "application state" into the URL hash and restore the states from it. It is possible to save the URL hash of the application state

Basic features of Bash1. Command historyHistory view previously used commandsHistfile (environment variable) specifies the command history of the stored file[[email protected] tmp]# echo $HISTFILE--will read the file that holds the history command/root/.bash_historyExample: Modifying an environment variable Histfile[Email protected] tmp]# export HISTFILE=/ROOT/AA [[email protected] tmp]# echo $HISTFILE/ROOT

executed to start with PS: #! PSPS aux | grep ypRoot 16947 0.0 0.1 36516 1264? SL ypbindRoot 17503 0.0 0.0 4124 740 pts/0 S + grep yp 6. Use histsize to control the total number of historical Command records Append the following two lines to the. bash_profile file and log on to the bash shell again. The number of command history records will change to 450: # Vi ~ /. Bash_profileHistory Size = 450Histfilesi

； [[emailprotected] test]# A=3 [[emailprotected] test]# B=4 [[emailprotected] test]# echo $A+$B 3+4一般使用1，2,3这三种方法：1、算术运算let： let C=$A+$B2、$[算术运算表达式] C=$[$A+$B]3、$((算术运算表达式)) C=$(($A+$B))4、expr 算术运算表达式，表达式中各操作数和运算符之间要有空格，而且使用命令引用 F=`expr $A + $B`5、使用运算器bc Exit scriptexit:退出脚本； exit n；n为退出状态码；如果脚本没有明确定义退出状态码，那么，最后一条命令的退出码即为脚本的退出状态码；Test method使用中括号测试法：[ expression ]:两边记得要用空格,命令测试法；[[ expression ]]：关键字测试法；test expression:只有使用-gt,-le,-ne,-eq,-ge,-lt:需要加上中括号，其他的不一定需要加中括号。if

6. use HISTSIZE to control the total number of rows recorded in the history command to append the following two rows. bash_profile file and log on to bash shell again. The number of command history records will change to 450: # vi ~ /. Bash_profile HISTSIZE = 450 HISTFILESIZE = 450 7. use HISTFILE to change the name of a historical file. by default, the command

Related interfaces: iurlhistorystg, ienumstaturl, iurlhistorystg2 related methods: Iurlhistorystg: enumurlsThis method returns an ienumstaturl interface pointer, which is used to enumerate ie history records. Lresult Ienumstaturl :: Next (ulong Celt, lpstaturl rgelt, ulong * pceltfetched) Parameter description: CeltThe value cannot be 0, but can be set to 1. RgeltIs a staturl structure pointer that is filled by a MS-IE. PceltfetchedReturned by the me

The following two tips to enhance Bash functions: one is to improve Bash command history management, and the other is to enable Bash to have a more intelligent automatic completion feature. The implementation process is not complex. You only need to modify the default configuration of

it, as a set of software inherited from UNIX, the format and style of commands are also a kind of inertia and should not be changed easily. There are many such examples in Linux, such as cc-> gcc, lex-> flex, yacc-> bison, all follow the UNIX habit. In UNIX-like systems, too many scripts are written using Shell scripts, so this should not be changed easily. For example, if we have compiled some software or class libraries, we will. /configure is a script written in Shell (generated accurately.