bash通过变量SHLVL记录自己是进程调用栈中哪一层的shell,即bash被嵌套的深度。bash启动时,调用variables.c中的initialize_shell_level()设置SHLVL。系统login之后启动的bash的SHLVL为1,每层shell启动的子shell的SHLVL在其环境中读到的SHLVL基础上加1。 使用source命令(“.”命令)执行脚本时,不开启子shell。bash内部的...
join coreutilsftp.gnu.org/gnu/coreutils kill procpshttp://procps.sourceforge.net killall psmischttp://sourceforge.net/projects/psmisc ln coreutilsftp.gnu.org/gnu/coreutils locale glibcftp.gnu.org/gnu/glibc localedef glibcftp.gnu.org/gnu/glibc logname coreutilsftp.gnu.org/gnu/coreutils lpr LPRng...
Analysis of the Bash source code indicates that the vulnerability was introduced into the code around version 1.13 in 1992 or earlier and has remained undetected to the public and undeclared since then. The Bash writing team has difficulty pinpointing the exact time the bug was introduced due to ...
Building and linking Objective-C code using the toolchain and Clang requires a number of compiler and linker flags. When building in a Bash environment (like an MSYS2 shell), the gnustep-config tool can be used to query the necessary flags for building and linking: # add gnustep-config dir...
BASH 是 Bourne shell 的后继兼容版本与开放源代码版本。Bourne shell 是 Unix 第七版上使用的 Shell。以简洁、紧凑、高校著称、由 AT&T编写。 Bourne Again 的双关语是born again,新生的意思。 黑客的幽默。 BASH 现在仍是大多数的类 Unix 操作系统的默认 Shell,自从 macOS Catalina 发布以来,macOS 默认Shell ...
In addition, the new version has more dependencies, please check the source code yourself to understand the dependencies. After resolving the dependencies,you can git clone this repo manually case $(uname -o) in Android) TMOE_LINUX_DIR="${HOME}/.local/share/tmoe-linux" ;; *) TMOE_LINUX_...
@echo "distrib: everything (for both binary-only and source code fuzzing)" @echo "man: creates simple man pages from the help option of the programs" @echo "install: installs everything you have compiled with the build option above" ...
makeknows about two source code control systems, RCS and SCCS, and supports their use with built-in implicit rules. Unfortunately, it seems the state of the art in source code control and modern software engineering have leftmakebehind. I’ve never found a use for the source control support...
http://www.sourcecodebrowser.com/grub2/1.99/index.html ,有兴趣的童鞋可以自行前往挖宝) /* The main routine. */ void __attribute__ ((noreturn)) grub_main (void) { /* First of all, initialize the machine. */ grub_machine_init (); ...
Consider a source file namedhello.cppwith the following contents: #include <iostream> using namespace std; int main(int argc, char *argv[]) { cout << "Hello, World!" << endl; return 0; } Copy Compile this source code on the command line by using theg++compiler from Red Hat Develope...