learn android linux command line shell

Label:One, SSH Secure Shell Client Connection Linux command line display Chinese garbled problemLinux Setup System languageModify the/etc/sysconfig/i18n file, asLang= "en_US. UTF-8 ", Xwindow will display the English interface,Lang= "ZH_CN. GB18030 ", Xwindow will display the Chinese interface.There is another way cp/e

[Programmer technical skills] familiar with Unix/Linux Shell and common command line (I) file system structure and basic operations, As a programmer, it is essential to be familiar with some unix/linux Command lines, because the s

. (It is safest to install the software upgrade through the library)If you need to add some additional repositories to your PMS, you'll need to set up this file.9.3 Red Hat-based systemsThere are also several different front-end tools available, often with the following three types:Yum: Used in red Hat and fedora.URPM: Use in MandrivaZypper: Using in openSUSEThese commands are based on the RPM command-line

the device Mout-o loop hangs in a single fileUmount Cancel hanging in fileDF View disk space on the device du displays the disk usage in the directory they add the-H parameter table easy to see the file sizeTar is able to be packaged and decompressed, and his principle isTAR-CVF c is compress compressed meaning to create a file just packaging not compression so the big thing changed basicallyTAR-ZVXF x is the extract extract file-Z is the file that takes-X extracted as input and then to the gzi

understanding input and outputREDIRECT Error messages Ls-al badfile 2> test4 redirection errors and data Ls-al test test2 test3 badtest 2> test6 1> #错误输入到test6, normal data is displayed to Test7 test7 test ls-al > test2 #将标准错误和 Standard input is redirected to Test8 Redirecting output in scriptOutput text to standard error echo "This is a error message" GT;AMP;2 can use the EXEC command to tell the shell scr

Problem descriptionFor Linux systems, many times are used for servers and the like, this time is not open desktop system, so that the command line operation, can effectively save the use of system RAM, so that as many resources as possible for the use of important service. So it is very popular to operate on a Linux sy

$ Cat test.txt line1line2line3line4 $ Sed-I '/line/{n; d}' test.txt $ cat test.txt line1line2line3line4 $ Sed-I '/line1/{n; d}' test.txt suzhaoqiang @ suzhaoqiang-OptiPlex-380 :~ /Android/source/linux_learned $ cat test.txt line1line2line3line4 $ Cat test.txt line1line2line3line4line5 $ Sed-I '/line1/{N; s/\ n //}' test.txt $ cat test.txt line1 line2line3line4line5 $ Sed-I '{N; s/\ n //}' test.txt

Label:1. View data from a shell prompt under MySQL specified database table 2. Delete all the tables under the specified database under MySQL in bulk, Ruiy complete the absolute test---pass the pass for in 'echo' usese;show tables | Mysql-p321 '; Do " drop table SE. $TB " -p321; Done Further complete the statement for, filter out the Tables_in_DBName for in 'echo' usese;show tables | mysql-p321| grep " tables_in "`; Do " drop table SE. $TB "

Chapter 2: more structured commands ForBasic Format for var in listdo commandsdone You can specify the list in the following ways:1. List for var in A B C D If the listed strings contain special characters, such as single quotes1) Use escape characters2) double quotation marks 2. Read the list from the variable list="A B C D"list=$list" E"for var in $list 3. Read the value from the command for var in `cat $file` Note: In this case,

Environment Variables Section:1. View Global variables: printenv/env2. Displays the value of a single environment variable: Echo as Echo $HOME3. Display all environment variables set for a particular process: set4. Setting global variables: Creating local environment variables--exporting to the global environmentCreate local environment variables (use all lowercase to differentiate from system variables)Test= ' Testing a long string '//environment variable name, equals, value no space betweenExp

If you are an IT person accustomed to a Windows command prompt, you will feel overwhelmed when you first use the Linux command line. You are familiar with DOS commands that are basically non-existent in Linux. In front of you is a lot of orders to memorize.One alternative is

; Time already exists, unit secondsSTAT items:1:evicted 0 Slab id=1; The number of kicked outSTAT Items:1:evicted_nonzero 0STAT Items:1:evicted_time 0STAT Items:1:outofmemory 0STAT Items:1:tailrepairs 0STAT items:1:reclaimed 0STAT items:6:number 91897 Slab id=6; Items: 91897 (that is, 91,897 key values have been stored)STAT items:6:age 604345 Slab id=6; Time already exists, unit secondsSTAT items:6:evicted 0 Slab id=6; The number of kicked outSTAT Items:6:evicted_nonzero 0STAT Items:6:evicted_ti