line-P,--max-procs=MAX-PROCSRun up to max-procs processes at a time-p,--interactive Prompt before running commands--process-slot-var=VARSet environment variableVARinchild processes-r,--no-run-if-empty If there are no arguments,run no command.Ifthisoption is not given,COMMANDwill be run...
-P,--max-procs=MAX-PROCS Run up to max-procs processes at a time-p,--interactive Prompt before running commands--process-slot-var=VAR Set environment variable VAR in childprocesses -r,--no-run-if-empty If there are no arguments, run no command.If this option isnotgiven, COMMAND wil...
Other notable shell config files: /etc/bash_profile(fallback/etc/profile) is read before the user's.profilefor system-wide configuration, and likewise/etc/bashrcin subshells (no fallback for this one). Many systems including Ubuntu also use an/etc/profile.ddirectory containing shell scriptlets,...
closefrom: File descriptors >= %d will be closed before executing a command closefrom_override: If set, users may override the value of `closefrom'withthe-C option setenv:Allowusers tosetarbitrary environment variables env_reset:Resetthe environment to adefaultsetof variables env_check:Environment...
许多程序使用这个setuid位以root身份运行,以获取它们需要更改系统文件的特权。 一个例子是passwd程序,它需要更改/etc/passwd文件。 2.17.1 Modifying Permissions 修改权限 To change permissions, use the chmod command. First, pick the set of permissions that you want to change, and then pick the bit to ...
You can send output through as many piped commands as you wish; just add another pipe before each additional command. 你可以通过任意多个管道命令发送输出,只需在每个附加命令之前添加另一个管道符号。 2.14.1 Standard Error(标准错误) Occasionally, you may redirect standard output but find that the pr...
--to-command=COMMAND 将提取的文件通过管道传送至另一个程序 1.4.5 文件属性操作选项 选项 说明 --atime-preserve[=METHOD] 在输出的文件上保留访问时间,要么通过在读取(默认METHOD=‘replace’)后还原时间,要不就不要在第一次(METHOD=‘system’)设置时间 --clamp-mtime 仅在文件比 --mtime 给出的时间更新...
(.text*) /* CPUDIR/start.o 中的所有.text 段 */}/* This needs to come before *(.text*) */.__efi_runtime_start : {*(.__efi_runtime_start)}.efi_runtime : {*(.text.efi_runtime*)*(.rodata.efi_runtime*)*(.data.efi_runtime*)}.__efi_runtime_stop : {*(.__efi_run...
To help prevent such bugs, always follow this 750 convention: 751 752 If the name of a function is an action or an imperative command, 753 the function should return an error-code integer. If the name 754 is a predicate, the function should return a "succeeded" boolean. 755 756 For ...
ilua :Enter into Lua console, can access environment objects search :Search the source code -p :Test a command and verify its input parameters help -a or set -a : see where the commands/settings are defined Oracle Database SQL * :Supports almost all Oracle database SQL statements Repor...