traceroute command in unix

uname-R shows the kernel version being usedDateShow system date cal -Display the 2007 Calendar Table CD: Return to the previous level directorypwdShow work Pathlsviewing files in a directorymkdirDIR1 Create a call'Dir1'The directory' mkdirDir1 Dir2 Simultaneous creation of two directoriesmkdir-p/tmp/dir1/Dir2 Creating a directory treeRM-F file1 Delete a call'file1'of the file' MVDir1 New_dir Rename/move a directoryCPfile1 file2 Copy a fileCP dir/*. Copy all files in a directory to the current wo

SED usage: sed ' Command ' filename (s) displays only results without modifying the file. 1, sed ' 2,5d ' file displays files, excluding 2-5 rows, but the number of rows exceeds the actual number of files in the file does not error. The sed '/10[1-4]/d ' file displays files, excluding rows containing 101-104. Sed ' 2, $d ' file displays files, showing only the first row. The sed ' 2,$!d ' file displays only the other rows except the first line. Se

used with 01, instead of a newline character, it is split with-L number does not cut with a cut, but is called with the data of this number row after every number row is read utility-N number is cut and the results are grouped by each number, using each set of results as parameters, calling utility-X finds that if the number of parameters is insufficient, terminate Xargs immediately-T print the instructions to be executed to stderr before executing utility-p maxprocs Parallel mode, up to Maxpro

Unix/Linux use the Find command to find the file to find the empty directory: find/path-depth-typed-emptywww.2cto.com to Find the empty File: find/path-depth-typef-empty find the file by name: find/path... In Unix/Linux, run the Find command to search for an empty directory: find/path-depth-type d-empty www.2cto.com:

ahoo.localPkginfoPkgchkPkgtrans openssl-0.9.8d-sol8-sparc-local.installp-d AHOO.BFF AllHpux Arch:file/stand/vmunix5. Mount on UNIX Systemmount-vcdrfs-oro/dev/cd0/cdrom/Solaris:mount-o vers=3Mount-o Loop Disk1.iso/mnt/diskAix:nfso-po Nfs_use_reserved_ports=16. Check the program built-in LIBPATH:Hpux-chatrDump-hvSunOS elfdump-dLinux readelf-d7. Other:Iptables-a output-d 202. -j DROPPS Eww pid|cat/proc/pid/envSmitty Chtz_dateEEPROM boot-device= "/[email

Several useful Unix command shortcuts 1.!$ Bash or zsh represents the last parameter of the previous command, for example, where the!$ represents file-b, it is convenient to view the contents of the File-b file; Copy Code code as follows: $ CP file-a File-b $ vim!$ 2.grep-ri-r represents a recursive lookup, found in all subdirectories, and I denot

Sometimes you need to add line numbers to the text, which you can do with the Unix cat command. The use of the Cat command is as follows: name cat-concatenate, Copy, and print files synopsis cat [-BENRSTUV] File ... Options Cat recognizes the following options: -b Omit Line numbers to blank lines when-n option is nbsp; specified. If This option is

ChownIs a command used to set file owners and file associations in UNIX systems. Super User Permissions are required to execute this command. Only the file owner of the file group and the super user can change the file association group. If you do not have permissions, you may need to use the chgrp command to set the a

Unix more command, unixmore [Syntax]: more [-cdflrsuw] [-number of rows] [+ number of rows] [+/mode] [file...] [Description]: displays the file on the terminal. -- more -- is displayed at the lower left of each screen. If the file is read rather than the pipe, the percentage is displayed at the end, indicates the displayed part. Press the Enter key to roll up a line and press the Space key to roll up a

Unix cp command, unixcp [Syntax]: cp [-p] [-r] File 1 [file 2...] Target [Description]: Set file 1 (file 2 ...) if the object is a file name, only one file can be copied. if the object is a directory, multiple files can be copied, if the target file does not exist, create this file. If yes, overwrite the previous content. If the target file is a directory, copy the file to this directory.-I will prompt

I learned a new command:PartprobeThis command can make the new disk partition take effect without restarting the operating system. Default location:/sbin/partprobe. Related commands:Parted. In practice, warnings are sometimes reported and partition information is not updated successfully. Partprobe-S Warning: warning: the kernel failed to re-read the partition table on/dev/SDA (device or resource busy ). as a result, it may not reflect all of