Linux Common Command Learning record

Linux Common Command Learning record

brother even Linux training, small compiled a common Linux Learning Commands:

1 CP Copy command

parameter:-P file attributes are copied together

-R Copy Folder

-D soft Chain information, etc. copy together

-A is a shorthand for-RDP

2 Find File Lookup commands

general Search by file name (Exact search)

Find/home-name xx.xx

General Branch file name lookup (Fuzzy matching, support:?) (single character), * (multiple characters), [] (matches a specific content in brackets))

Find/home-name "*.xx" All files ending with. xx

Find based on the user who owns the file

Find/home-user sls0919 Find all files sls0919 the user

Find/home-nouser Find files without owner in home directory (approximate rate is junk file)

Find by File size

Find/home-size +25k find files larger than 25k in home directory (plus sign is greater than, minus indicates less than, no symbol equals)

Find by File date

Find/home-mtime +25 Find Files modified 25 days before the home directory (plus sign is greater than, minus is less than, no symbol equals; Mtime: Modify content time, Atime: Access time, CTime: Modify attribute time)

Multi-Criteria lookup connection symbol (A==and,o==or)

Find/home-mtime +25-a-size-25k Find files that were modified 25 days ago in the home directory and size less than 25k

Find/home-mtime +25-o-size-25k Find content modified 25 days ago or files smaller than 25k in the home directory

query results and execute action commands (-exec {}\;)

Find/home-mtime +25-a-size-25k-exec ls-lh {}\; List details of files that were modified 25 days ago and size less than 25k in the home directory

3 grep Text Lookup command

-I ignores case

-V excludes the specified string

-C calculates the number of times the specified string was found

-N output Shows line number

Grep-r ' Test ' * searches the current directory and its subdirectories for files of ' test ' lines

Grep-l-R ' Test ' * searches the current directory and its subdirectories for files of ' test ' lines, but does not display matching rows, showing only matching files

Grep-n ' t[ae]st ' data.txt find information for test or tast in file Data.txt (refer to regular expression)

4 Man and help command

Mans LS

LS--help

5 zip, gzip, bzip2, tar compress unzip command

Zip compressed file name source file

-R Compression Directory

Gzip and bzip2 are both compressed files and cannot be on the directory

Common methods:

TAR-CVF compressed file name source file source file source file can be multiple

-C Compression

-X Decompression

-V Show Compression process

-f Specifies the file name after packaging

-Z compression decompression. tar.gz type File

-j compression decompression. tar.bz2 type File

The above from the Brother even forum to share

Linux Common Command Learning record