Multiple commands can be chained together using pipes. exec_pipeline.tcl set count [exec ps aux | grep tclsh | wc -l] puts "Number of tclsh processes: $count" This pipeline counts how many tclsh processes are r
这项特性叫做 "auto-exec"(自动执行).例如你输入"dir"作为一个命令,unknown 会执行"exec dir"来列 出当前目录的内容,如果这里的命令没有特别指明需要输入输出重定向,则自动执行功能会使用 当前 Tcl 应用所拥有的标准输入输出流,以及标准错误流,这不同于直接调用 exec 命令,但是 提供了在 Tcl 应用中直接执行...
For details, see compile_simlib in the Vivado Design Suite Tcl Command Reference Guide (UG835), or type compile_simlib -help. Following are example commands for each third-party simulator: Questa Advanced Simulator Generating a simulation library for Questa for all languages and for all libraries...
The -safe flag creates an interpreter with dangerous commands removed. The exec command fails as expected in the safe interpreter. Alias CommandThis shows how to create an alias between interpreters. interp_alias.tcl set slave [interp create] interp alias $slave puts {} puts -nonewline interp...
如果数据文件包含有危险命令,象l -a exec rm *,它们执行后会带来严重的后果.解决这个问题的办法是在安全模式下执行主动文件,防止危险命令。具体信息可参看TCL手册中"安全解释器"部分. ▲主动文件样本的局限 此样本不是对所有可能的数据格式都有效.数据格式必须是以行为基础的,每一行必须以一个关键字开头.用关键字...
Thetclquitcommand exits the Tcl shell regardless of whichCisco NX-OScommand mode is currently active. You can also pressCtrl-Cto exit the Tcl shell. Theexitandendcommands changeCisco NX-OScommand modes. Theexitcommand terminates the Tcl shel...
execute the user-defined config commands if [catch {cli_open} result] { error $result $errorInfo } else { array set cli1 $result } if [catch {cli_exec $cli1(fd) "en"} result] { error $result $errorInfo } # Use "diagn action mod mod# test testname default" command # fo...
console 28 Control the console used to enter commands interactively. continue 77 Continue with next loop iteration. error 79 Raise an error. eof 109 Check for end of file. eval 122 Concatenate arguments and evaluate them as a command. exec 99 Fork and execute a UNIX program. exit 116 ...
Some applications should be written as separate programs, invoked withexec, rather than as extensions or Tcl scripts. • TheTcl interpreteris not the UNIX command shell orCOMMAND.COM. • Be aware of possible leading zeros in numbers.
set output [exec "show ip int brief"] set fd [open "flash:/ip_int.txt" "w"] puts $fd $output close $fd ios_config "file prompt quiet" "end" copy flash:/ip_int.txt tftp://10.1.1.1/ip_int.txt ios_config "no file prompt quiet" "end" file delete -force "flash...