cut command in unix

Shell Special Symbols* Any of any characters[[email protected] ~]# ls *.txt1.txt 23.txt 2.txt David.txt? Any one character[email protected] ~]# ls?. Txt1.txt 2.txt# comment Characters[[email protected] ~]# #echo ' OK '\ de-Semantic characters[Email protected] ~]# echo-e ' 123\n456\n789\t0000 '12355W7890000| Pipe character[email protected] ~]# cat 2.txt|wc-l2Cut command-b Specifies the number of bytes-D delimiter-F Specify segment number-c Specifies th

protected] ~]# lsattr test2-------------E-test2/test1-------------E-test2/test3-------------E-test2/test4[Email protected] ~]# lsattr-d test2----I--------E-test2[Email protected] ~]# chattr-i test2/[Email protected] ~]# RM-RF test2/If you have done the same experiment with Amin before, I believe you will have the same problem. Next, Amin to explain the effects of the two special symbols "" and "| |" By doing experiments:[email protected] ~]# Touch test1 test3[[email protected] ~]# ls test2 tou

, and the number of occurrences of the row is output at the beginning of the line#sort Testfile | UNIQ-C1 Friend3 Hello2 WorldDisplays only duplicate rows, and displays the number of repetitions of the row at the beginning of the line#sort Testfile | UNIQ-DC3 Hello2 WorldShow only rows that are not duplicatesSort Testfile | Uniq-ufriend CutThe Cut command extracts text columns from a text file or text stre

8.10 Shell Special Symbol Cut command8.11 Sort_wc_uniq Command8.12 tee_tr_split Command8.13 Shell Special Symbol Shell Special Symbols * represents all characters for wildcards ？ is a single character is the comment character (in the configuration file or when the command is written in front of the Add # This command will not t

Tags: 8.10 shell special Symbol Cut command8.10 Shell Special Symbol Cut command : Represents any arbitrary character？ : Represents any single character#: Denotes comment characters\ denotes a de-semantic character| Represents a pipe characterThe Cut command is used to

numbern all characters, Bytes, or fields from the beginning of Nth to the end of the lineN-m all characters, Bytes, or fields from the beginning of Nth to the first m (including the first m)-m all characters, Bytes, or fields from the beginning of the 1th to the first m (including the first m) Read from standard input when there is no file parameter, or if the file does not exist Interpretation: 1. Get a column of characters or bytes can be used with-C,-B, etc. 2. A range can be obtained

Unix/Linux sync command, unixlinuxsync command Write cache command -- sync After the unix system is started with the reboot command, the system prompts an error message, and some applications cannot work normally. After carefully

The line will log back, calculate the request time-out rate, will use the Cut command, read a good article, turned.1 Describe the cut commandAs its name, cut's job is to "cut", specifically in the document is responsible for cutting the data used.Cut is a processing object with each action, and this mechanism is the sa