liudepengzhgd的专栏

example:sudo mkdir /mnt/isomount -o loop o.iso /mnt/iso

ls

Rename or movemv [-f] [-i] oldname newname

Example:paste file1 file2123 liudepeng2 fanyiwei3 liuyanjun5 zhaoweixing3 fengguojing222 hello2235 487 4980 345 3

which ls

determain file typefile files

Find file by nameLimit outputlocate filelocate -l 10 -b name-c  print number of find entries-b  only file name-i  ignore case

Change all 3 timestampchange must be the current timestampChange access,modify and change to current timestamptouch fileChange access and modifytouch -t 06152300 filetouch -t 02132333

catenateDisplayCopy textCombine Createcat filenamecat option filenamecat file1 file2cat file1 file2 > file3Pipe:cat file | lessCreate:(overwritten)cat > newfilesav

Remove sections from each line of filescut -c1-2 sort.c1=cut -c4,8 company.datacut -d: -f3 new406378:Sales:Itorre:Jan031762:Marketing:Nasium:Jim636496:Research:Ancholie:Mel396082:Sales:Juc

dump files in octal and other formats

Set file mode creation mask

whereis cp

内核线程和守护线程无虚拟内存空间

gconf-editor

wine file.exe

Display at a timemore file

Linkln [-f] [-n] [-s] existfile newnameExample:ln file linknameln -s file linknameSymbolic-link

点击打开链接

ls -l- rwx r-xr-x joe acctg archive.sh - rw- rw-r-- joe acctg orgchart.gif- rw- rw-r-- joe acctg personnel.txt- rw- r--r-- joe acctg publicity.htmld rwx r-xr-x joe acctg sales- r

copy files and directories cp [OPTION]... SOURCE DEST cp [OPTION]... SOURCE... DIRECTORY cp [OPTION]... --target-directory=DIRECTORY SOURCE...-R,-r,--recursive-v --verbo

f:改变ext2,ext3文件属性权限：超级用户格式：chattr [-RV] [-+=AacDdijsSu] [-v version] 文件或目录-R  递归-V  输出修改内容- 失效属性+ 激活属性= 指定属性A Atime 不需修改最后访问时间S Sync 将写操作立即更新到磁盘a  Append only  对文件：只允许追加

点击打开链接Change the access mode of the fileprimarily usage:chmod who=|-|+permissions filename= : Givewho:u: Owner of the file(means you)g: groupo: othersa: u+g+opermisssion:r:

Change owner filechown [-R] newowner filenamesnewowner:alias/username

examplechgrp [options] group fileschgrp [options] --reference=rfile files-c--dereference-h, --no-dereference-R, --recursive1,change group of a file or directorychgrp u

search files in a directory hierarchyfind [path..] [expression]Typicalfind / -name gamefind /home -user bookfind /usr -name *statfind /usr -mtime +60Modified more than 60 days agofind

less file

Create a temporary file or directorymktemp /tmp/nameXXname

cyclic redundancy check (CRC)cksum file1740057581 19 fileCRC_sum     ectets   filedisplay formats:"%u %d %s\n" , ,

f:Comparei:Two fileso:What line numbers are differentcmp [option].. first secnod

f:Display different linesdiff [-b] [-i] [-t] [-w] [-c] [-C] [-e] [-f] [-h] [-n] [-D string] [-l] [-r] [-s] [-S name] [fileone filetwo ] [directoryone directorytwo]Example:diff help dir2

make histogram from diff-outputdiffstat [options] [file-specifications]

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