Shell daily operations shell Command collection

1. Date view modify system time and date

Date

-D

Displays the time of the string description

-F

Show each line of time in the Datefile file

-R

Displays the last modified time of the file

-R

Display time in RFC-2822 compatible date format

-rfc-2822

Display time in RFC-2822 compatible date format

-S

Set Time to String

-U

Display or set to coordinated Universal time format

Using the-D parameter

Current time

# date-d Now

Thu Nov 22:52:45 PST 2013

Next month's time

# date-d ' next Monday '

Mon Nov 00:00:00 PST 2013

Yesterday's time and formatted display

# date-d Yesterday +%y%m%d

20131113

Shows when the file was last modified

# date-r Install.log

Fri SEP 6 11:31:15 PDT 2013

Display the current time and format as year-month-day: minutes: Seconds

Date "+%y-%m-%d%h:%m:%s"

2. grep

Filter blank lines and Comment lines

GREP-V #/etc/swift/object-server.conf |grep-v "^$"

Egrep-v "#|^$" filename

Website PV Statistics

Website PV, ie Page view, site page click Volume

Statistics Day/home/index page hits

grep ' Date +%d/%b/%y ' Access.log | grep "/home/index.html"-C

3, VI

VI Append the contents of the file to other files

: 1,129 w! >>nginx.conf.bak

4, PS

Process troubleshooting with high memory consumption

PS aux | Head-1;ps aux|grep-v pid|sort-rn-k +4|head

5. Find

Find files by directory depth

Find. -name "*.log*"-maxdepth 2-mtime +15-exec ls-l {} \;

Declare

-maxdepth Directory Depth

-atime-n[+n]: Find out the file access time within n days [outside] of the file.

-ctime-n[+n]: Find files where the file change time is within n days [outside].

-mtime-n[+n]: Find the file that modifies the data time within n days [outside].

-amin-n[+n]: Find file access time within n minutes [outside].

-cmin-n[+n]: Find files where the file change time is within n minutes [].

-mmin-n[+n]: Find the file that modifies the data time within n minutes [].

Exclude Directory Lookup files

Find. -path "./20161218"-prune-o-name "*.log*"-print

Declare

-path Pathname-prune: Avoid specifying subdirectories pathname find

-O or

-A and

-not opposite

6. Process

Turn the process into the background:

Ctrl + Z

To transfer a process to the foreground:

Fg

7. Generate a random hexadecimal number, where n is the number of characters:

OpenSSL Rand-hex N

8. Get the MD5 hash of the text:

Echo-n "Text" | Md5sum

9. Compression and decompression

Zip:

Compress the contents of the current directory as Xxx.zip

Zip-r xxx.zip./*

Delete a xxx.txt file in a compressed file

zip-d Xxx.zip Xxx.txt

To add a xxx.txt file to a compressed file

Zip-m Xxx.zip./xxx.txt

Compress multiple files and directories at the same time

Zip-r xxx.zip file1 file2 file3/home/xxx/xxxx

Unzip

Unzip to the specified directory

unzip-d/home/xxxx Xxx.zip

Unzip all txt files to the specified directory

Unzip Xxx.zip *.txt-d/home/xxxx

Remove source files after finding file compression

Find-mtime +3-name "file*" | Xargs ZIP-RM Log.zip

View files within a compressed package

Unzip-v

10. Sed

Sed-s ' s/^m//g ' file to delete spaces in Windows format

Sed ' 2,5d ' file to display files, minus 2-5 lines

Sed '/10[1-4]/d ' file display to remove rows containing 101-104

Sed '/^ *$/d file to delete blank lines in files

Sed-n '/10[1-4]/p ' file only shows rows containing 101-104

Sed ' s/moding/moden/g ' file replaces moding with Moden

Sed-n ' s/^west/north/p ' file replaces the row beginning with West with north and displays

Sed ' s/...$//' file deletes the last three characters of each line

Sed ' s/^...//' file deletes the first three characters of each line

The sed ' s#moding#moden#g ' file replaces the moding with the # after the moden,s to represent the delimiter between the search string and the replacement string

Sed '/101/,/105/s/$/20050119/' file adds "20050119" to the end of rows matching rows from 101 to 105

Sed-e '/^#/!d ' file displays lines that begin with #

Sed-e ' s/://g ' passwd replace file all colons are spaces

-E does not change source file, output to standard output

-I change source file

Character ^m (ctrl-v) for deleting Windows files under Linux

:%s/^m$//g # get rid of ^m at the end of the line

:%s/^m//g # Remove all the ^m

:%s/^m/\r/g # Replace ^m with a carriage return

# sed-e ' s/^m/\n/g ' filename

VI Remove the colon

Sed ' s/://' g '

Change the parameter of enabled in the file from 1 to 0

# sed-i '/enabled/s/1/0/' Iso.repo

11. Delete files with a. log suffix

For i in ' Find-type D | grep./';d o rm $i/*.log;done

12. Batch modification of file suffix

Rename. tar.gz Zip *.tar.gz

13. Swift Daily Commands

/etc/swift> sudo swift-ring-builder account.builder create 18 3 1

/etc/swift> sudo swift-ring-builder container.builder create 18 3 1

/etc/swift> sudo swift-ring-builder object.builder create 18 3 1

/etc/swift> Export zone=1

/etc/swift> Export storage_local_net_ip=192.168.1.101

/etc/swift> Export weight=100

/etc/swift> Export DEVICE=SDB1

Add to

/etc/swift> sudo swift-ring-builder account.builder add z$zone-$STORAGE _local_net_ip:6002/$DEVICE $WEIGHT

/etc/swift> sudo swift-ring-builder container.builder add z$zone-$STORAGE _local_net_ip:6001/$DEVICE $WEIGHT

/etc/swift> sudo swift-ring-builder object.builder add z$zone-$STORAGE _local_net_ip:6000/$DEVICE $WEIGHT

Delete

/etc/swift> sudo swift-ring-builder account.builder remove z$zone-$STORAGE _local_net_ip:6002/$DEVICE $WEIGHT

/etc/swift> sudo swift-ring-builder account.builder remove z1-192.168.1.101:6020

/etc/swift> sudo swift-ring-builder account.builder rebalance

/etc/swift> sudo swift-init proxy start

# Vgdisplay

# lvcreate-n Swiftlv-l 10G vg0

# MKFS.XFS/DEV/MAPPER/VG0-SWIFTLV

# Vi/etc/fstab

/DEV/MAPPER/VG0-SWIFTLV/SRV/NODE/SDB1 xfs noatime,nodiratime,nobarrier,logbufs=8 0 0

# service RSYNCD Start

rsync Rsync://[email protected]

/etc/swift> sudo swift-init all start

Curl-k-v-h ' x-storage-user:system:root '-h ' x-storage-pass:testpass ' https://192.168.1.100:8080/auth/v1.0

Swift-ahttp://192.168.1.100:8090/auth/v1.0-u system:root-k testpass Stat

Swift-ahttp://192.168.1.100:8090/auth/v1.0-u system:root-k Testpass Post Container1

Swift-ahttp://192.168.1.100:8090/auth/v1.0-u system:root-k Testpass Upload container1/etc/swift/*.ring.gz

Swift-ahttp://192.168.1.100:8090/auth/v1.0-u system:root-k Testpass List

After synchronizing all nodes, ensure that the Administrator (Admin) has access to the/etc/swift directory and that all ring's. gz file owners are correct.

Shell daily operations shell Command collection