选项 -n line number 输出行号 -b line number nonblank 输出空白行的行号 -A show All 显示特殊字符 TAC tac – concatenate print files reverse 反序的查看文件 MORE more – 一页一页翻动 功能键 空格space 下一页 enter 下一行 /xxx 向下搜索xxx n 搜索下一个 :f 显示文件名并显示行号 q 退出 b...
grep (global search regular expression(RE) and print out the line,全面搜索正则表达式并把行打印出来)是一种强大的文本搜索工具,它能使用正则表达式搜索文本,并把匹配的行打印出来。
每个实时线程打印时,先从pool中分配printf buffer 成功分配后,将分配的buffer设置为线程特有存储数据pthread_setspecific(buffer_key, buffer),此后该线程只操作这个buffer; 若线程过多,预先分配的pool已无法分配,使用malloc增加一个printf buffer,放到全局队first_buffer里,并设置为该线程特有存储数据,供后续每次打印输出...
它可以在配置工具链时通过 --with-sysroot= 设置,也可以在命令行中通过 --sysroot= 设置。 你可以通过使用 -print-sysroot 看到默认的系统根目录的位置: $ arm-cortex_a8-linux-gnueabihf-gcc -print-sysroot /home/andrew/x-tools/arm-cortex_a8-linux-gnueabihf/arm-cortex_a8-linux-gnueabihf/sysroot 你...
Jobs: Shows the list of print jobs. Click Cancel job to cancel the selected job and select the Show completed jobs check box to see previous jobs on the job list. Classes: Shows the class that your machine is in. Click Add to Class to add your machine to a specific class or click ...
320 321 Therefore, the Linux-specific 'u8/u16/u32/u64' types and their 322 signed equivalents which are identical to standard types are 323 permitted -- although they are not mandatory in new code of your 324 own. 325 326 When editing existing code which already uses one or the other ...
为了更好的保护用户帐号的安全,Linux允许用户随时修改自己的口令,修改口令的命令是passwd,它将提示用户输入旧口令和新口令,之后还要求用户再次确认新口令,以避免用户无意中按错键。如果用户忘记了口令,可以请系统管理员为自己重新设置一个。 虚拟控制台 Linux是一个真正的多用户操作系统,这表示它可以同时接受多个用户登...
Blink uses just-in-time compilation, which is supported on x86_64 and aarch64. Blink takes the appropriate steps to work around restrictions relating to JIT, on platforms like Apple and OpenBSD. We generate JIT code using a printf-style domain-specific language. The JIT works by generating ...
2019: "perf fuzzer: Exposing Kernel Bugs by Detailed Fuzzing of a Specific System Call (2019 Update)" by Vincent M. Weaver and Dave Jones [paper]2019: "Industry Practice of Coverage-Guided Enterprise Linux Kernel Fuzzing" [paper]2019: "Effective Static Analysis of Concurrency Use-After-Free ...
/etc/default/hwclock Platform hardware-specific file. Created during first boot. Do not copy. /etc/init Platform initialization files. Do not copy. /etc/init.d/ Platform initialization files. Do not copy. /etc/fstab Static information on filesystem. Do not copy. /etc/image-release System ve...