history expansion in bash. This section describes what syntax features are available. History expansions introduce words from the history list into the input stream, making it easy to repeat commands, insert the
The environment variable is parsed before the command line, so command line options override the LESS environment variable. If an option appears in the LESS variable, it can be reset to its default value on the command line by beginning the command line option with "-+". Some options like ...
When you execute a command, you can instruct history to ignore the command by setting HISTCONTROL to ignorespace AND typing a space in front of the command as shown below. I can see lot of junior sysadmins getting excited about this, as they can hide a command from the history. It is g...
root: /5g_build/5g_Main/$ perf -h usage: perf [--version] [--help] [OPTIONS] COMMAND [ARGS] The most commonly used perf commands are: annotate Read perf.data (created by perf record) and display annotated code archive Create archive with object files with build-ids found in perf.data...
. Repeat previous command. ENVIRONMENT The more command respects the following environment variables, if they exist: MORE This variable may be set with favored options to more. SHELL Current shell in use (normally set by the shell at login time). ...
Shows the command history. host A utility to perform DNS lookups. hostid Shows host’s numeric ID in hexadecimal format. hostname Display/set the hostname of the system. htdigest Manage the user authentication file used by the Apache web server. htop An interactive process viewer for the comm...
xiaowei_resource_command:命令类型的资源,已废弃。 xiaowei_resource_intent:意图类型的资源,与定制有关。 xiaowei_resource_remind:提醒类资源,预定义,暂未使用。 xiaowei_resource_local:本地类型资源,如上文所述的本地TTS包。 XIAOWEI_PLAYLIST_ACTION 资源列表操作定义。通常,当您与小微对话后,会获得一些资源,即...
Linux commands allow you to control your system from the command line interface (CLI) instead of using your mouse or trackpad. They are text instructions entered into the terminal to tell your system exactly what to do.Commands you enter on the Linux terminal are case-sensitive and follow a...
papi_xml_event_command 现在可以打印出事件的所有单元掩码。 (bz#2037426) 8.12. 身份管理 默认情况下,调试消息不再记录到 /var/log/messages 在以前的版本中, ipa-dnskeysyncd 和 ipa-ods-exporter 守护进程会默认将所有调试消息记录到 /var/log/messages ,导致日志大幅增大。现在,您可以通过在 /etc/i...
history/his :Check or run historical commands, and the historial commands are only kept in memory and available within the current window r or / :Rerun previous command sleep :Sleep for specific seconds, mainly used in script file repeat/itv :Periodically run other commands host or ! :Run OS...