A file that ends with .gz is a GNU Zip archive. Use gunzip file.gz to uncompress .gz and remove the suffix; to compress it again, use gzip file. gzip(GNU Zip)是当前标准的Unix压缩程序之一。 以.gz结尾的文件是GNU Zip归档文件。使用gunzip file.gz来解压缩< file>.gz并移除后缀;要再次压缩...
There are very few zone structures in the machine, so space * consumption is not a concern here. */ #if defined(CONFIG_SMP) struct zone_padding { char x[0]; } ___cacheline_internodealigned_in_smp; #define ZONE_PADDING(name) struct zone_padding name; #else #define ZONE_PADDING(name...
把文件系统相关的统计信息放在statfs中int(*statfs) (structdentry *,structkstatfs *);int(*remount_fs) (structsuper_block *,int*,char*);void(*umount_begin) (structsuper_block *);int(*show_options)(structseq_file *,structdentry *);int(*show_devname)(structseq_file *,structdentry *);int(...
tac FILENAME[ ...]|STDIN tail 显示后几行。 tail [-f -n COUNT] FILENAME[ ...]|STDIN -f:持续检测文件。 -n:显示后COUNT行。若COUNT以+开头,则从第COUNT(含)行开始。 文本处理 awk 以行为单位操作文本列。 awk [-F 'REGEXP' -v VAR=VALUE] '[CONDITION] {ACTION} [[CONDITION] {ACTION} ...
(CONFIG_ENABLE_ARM_SOC_BOOT0_HOOK)/** Various SoCs need something special and SoC-specific up front in* order to boot, allow them to set that in their boot0.h file and then* use it here.** To allow a boot0 hook to insert a 'special' sequence after the vector* table (e.g. ...
# hostnamectl set-hostname test-cn-01 永久修改 # vi /etc/sysconfig/network # Created by anaconda HOSTNAME=test-cn-01 12.4 关闭Selinux 临时关闭 # setenforce 0 永久关闭 #vi /etc/selinux/config 修改为SELINUX=disabled 12.5 关闭PackageKit ...
Partition#2 contains a swap signature.Do you want to remove the signature?[Y]es/[N]o: N Command(mforhelp): w The partition table has been altered. Syncing disks. parted命令:用于对磁盘进行高级分区操作。相比于fdisk,parted提供了更多的功能和灵活性。
rm 删除的本质是执行unlink() 函数,删除目录是执行 remove() 函数;而 unlink() 函数主要做的就是删除文件目录项并减少一个连接数,如果链接数为0并且没有任何进程打开该文件,文件将会被删除,但是其 inode 节点信息和data bloack仍然存在,只是解除了链接。如果是最后一个连接但是有进程打开文件,文件仍会存在,直到...
atomic_long_t s_remove_count; /* Being remounted read-only */ int s_readonly_remount; /* AIO completions deferred from interrupt context */ struct workqueue_struct *s_dio_done_wq; struct hlist_head s_pins; /* * Owning user namespace and default context in which to ...
*/ //8 vma的标志,mm.h定义 /* * For areas with an address space and backing store, * linkage into the address_space->i_mmap interval tree. */ struct { struct rb_node rb; unsigned long rb_subtree_last; } shared; //9 区间树使用 /* * A file's MAP_PRIVATE vma can be in both...