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Easy Linux Commands
Working Examples of Linux Command Syntax
The easy way to become a Linux command
and script guru.
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/ £17.95
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Only $19.95
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Linux Command Reference Poster
Donald K. Burleson
ISBN
0-9759135-8-1
Unframed Linux
Poster - $19.95
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This is a Linux command syntax reference poster that you will
use every day. Packed with working Linux commands and
scripts, this quick reference will always be your guide to Linux
command syntax.
WARNING - This poster is not
suitable for beginners. It has powerful root commands and
is is designed for senior Linux administrators.
This poster is indispensable for every Linux professional who requires an intelligent quick-reference.
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* Assists the Linux
Administrator in getting working Linux command syntax fast
* Quickly find files based on size and date last modified
* Search for a string in entire directories
* Includes root administrator commands |
About the Author:
Donald Burleson |
Donald
K. Burleson is one of the world’s top Oracle Database experts
with more than 25 years of full-time DBA experience. He
specializes in creating database architectures for very large
online databases and he has worked with some of the world’s
most powerful and complex systems.
A former Adjunct
Professor, Don Burleson has written more than 30 books, published more
than 100 articles in National Magazines, and serves as
Editor-in-Chief of Rampant TechPress. Don is a popular lecturer
and teacher and is a frequent speaker at Oracle OpenWorld and
other international database conferences.
Linux poster Contents:
Administrator Commands
Shutdown server as root
/sbin/shutdown
Kill all xxx processes pkill
Kill all processes for xxx user pkill
Show swap paging space /sbin/swapon
Show Linux syslog errors
Delete files > 20 days old find . –mtime
Show swap disk details swapon -s
Kill a stubborn task kill
See held memory segments ipcs
Remove memory segments ipcrm
Show total CPU usage ps aux
Show Linux system parms sysctl
Display most active processes ps aux
or, top
Watch active file writes tail –f
Create Hex dump of file od –x
Mail a set of files cat mail –s
Count online users w or uptime
Display users w
List process IDs for xxx user ps ux -u
Linux command history files history
Display dispatching priority (NI) for tasks ps aux | more
Create a complex alias alias
CPU & RAM Commands
Display the number of
CPUs cpuinfo
Show top CPU% ps aux
Display top-10 CPU consumers ps aux
RAM memory display free
Disk and Filesystem Commands
Mount points for disk pvdisplay
Show volume groups vgdisplay
Display free space in directory df -h .
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File Commands
Remote mount file
mount host
Remount a lost file mount –a
Remote file copy scp hostname
Remote mount a file mount host
Create a soft link to file ln –s
Show file usage du –s
Compress a directory tar cvf
Uncompress a directory tar xvf
Find most recent file in directory ls -t
Display last 100 lines of file xxx tail -100
Create a new file named xxx touch
Rename file xxx to yyy mv
Prevent accidental file deletion alias rm='rm -i'
Security Commands
Grant execute
permission for all *.ksh files in directory chmod +x
Allow the owner write and execute permission chmod o+wx
See a userx default settings cat /etc/passwdSearch
Commands
See most recent
changed file ls –alc
See most recent file touch ls –alt
Search binary file for xxx string strings filename
Find files < 3 days old find . –mtime
Find files size > 10k find . –size –print
Find strings in directory grep -ri
Find file columns with column 4=x or y egrep
Find directory for file xxx in $PATH which
Find process xxx ps u
Script Commands
Display command return
code echo $?
Increment a counter count=”`exp+1`”
Add two variables TOT=`expr $SYS + $USR`
vi Commands
Delete lines to EOF
dG
Read-in new file :r filename
Change all xxx to yyy <esc>:.,$s/xxx/yyy/g
Save and exit <esc>:x
Find string xxx <esc>/xxx
Change word xxx to yyy cw yyy <esc>
Repeat last command .
Repeat last find command /
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Errata and
Enhancements
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