All commands (14,187)
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Oracle DBA remove some logfiles which are still open by the database and he is complaining the space has not been reclaimed? Use the above command to find out what PID needs to be stopped. Or alternatively recover the file via:
cp /proc/pid/fd/filehandle /new/file.txtShow Sample Output12find -L /proc/*/fd -links 0 2>/dev/null -
Type this into windows via run and it will display to you your complete policy for windows. This includes group policy, security policy and your active directory account (min password etc).... www.fir3net.com
4rsop.msc -
2watch 'netstat -aniv'
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3netstat -lnp
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-4ps aux | grep -v `whoami`
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3pdftk $* cat output $merged.pdf
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When plumbers use pipes, they sometimes need a T-joint. The Unix equivalent to this is 'tee'. The -a flag tells 'tee' to append to the file, rather than clobbering it. Tested on bash and tcsh. Show Sample Output
1echo "Hello World." | tee -a hello.txt -
Using perl, here, we grep the man page of fetchmail to find the paragraph starting with '-k | --keep' and ending before the paragraph starting with '-K | --nokeep' Show Sample Output
0man fetchmail | perl -ne 'undef $/; print $1 if m/^.*?(-k \| --keep.*)-K \| --nokeep.*$/smg' -
Set an alarm to starts in specific time. Show Sample Output
8echo "aplay path/to/song" |at [time] -
Sleep 5h and plays the song as a wake up alarm
3sleep 5h && rhythmbox path/to/song -
merge a.pdf b.pdf and c.pdf and create ./out.pdf
5gs -q -sPAPERSIZE=a4 -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=out.pdf a.pdf b.pdf c.pdf -
3su - <user> -s /bin/sh -c "/bin/sh"
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I've used this scan to sucessfully find many rogue APs on a very, very large network. Show Sample Output
7nmap -A -p1-85,113,443,8080-8100 -T4 --min-hostgroup 50 --max-rtt-timeout 2000 --initial-rtt-timeout 300 --max-retries 3 --host-timeout 20m --max-scan-delay 1000 -oA wapscan 10.0.0.0/8 -
Using a widescreen monitor, I often get annoyed that the RDP window is too high, or too narrow for what I want to display. In this example, I'm on a 1680 x 1050 display.
1mstsc /w:1500 /h:900 /v:www.example.com -
get desired info from machine and pipe it txt file. Show Sample Output
-2echo "-------------" >> nicinfo.txt; echo "computer name x" >> nicinfo.txt; ifconfig | grep status >> nicinfo.txt; ifconfig | grep inet >> nicinfo.txt; ifconfig | grep ether >> nicinfo.txt; hostinfo | grep type >> nicinfo.txt; -
With a full installation of Solaris 10, the graphical login and desktop will start by default. This command will disable that feature. To enable it again use: /usr/dt/bin/dtconfig -e Show Sample Output
1/usr/dt/bin/dtconfig -d -
adobe updater keeps popping up. (normal update fails, probably due to insufficient rights) (src: http://aricsblog.blogspot.com/2007/12/adobe-updater-crashes-on-mac-os-x-and.html)
-9sudo /Applications/Utilities/Adobe\ Utilities.localized/Adobe\ Updater5/Adobe\ Updater.app/Contents/MacOS/Adobe\ Updater -
Very handy and time-saving. Do a 'ctrl+ r' on command prompt. You will see a "(reverse-i-search)`':" mark. Just type any sub-string of the command you want to search(provided you have used it sometime in the same session). Keep on searching by repeatedly pressing ctrl+r. Press enter once you get the desired command string. Show Sample Output
9ctrl + r -
This is great if you are behind a router that does not support dynamic dns updates! Example: AT&T u-verse gateway... Put this in a script and run it as a cron job.
5curl -v -k -u user:password "https://members.dyndns.org/nic/update?hostname=<your_domain_name_here>&myip=$(curl -s http://checkip.dyndns.org | sed 's/[a-zA-Z<>/ :]//g')&wildcard=NOCHG&mx=NOCHG&backmx=NOCHG" -
You can replace "sort -nu" with "sort -u" for a word list sorted or "sort -R" for a random-sorted line (edit: corrected) Show Sample Output
-1echo $numbers | sed "s/\( \|$\)/\n/g" | sort -nu | tr "\n" " " | sed -e "s/^ *//" -e "s/ $//" -
with 'mii-tool -w eth0' you can watch the interface for changes of the link status Show Sample Output
6mii-tool eth0 -
Helpful when we want to do mass file renaming(especially mp3s). Show Sample Output
0echo "${STRING}" | tr '[A-Z]' '[a-z]' | awk '{print toupper(substr($0,1,1))substr($0,2);}' -
somewhat faster version to see the size of our directories. Size will be in Kilo Bytes. to view smallest first change '-k1nr' to '-k1n'.
4find . -depth -type d -exec du -s {} \; | sort -k1nr -
readlink -f accepts a relative, noncanonical path and emits the corresponding canonical, absolute path. Show Sample Output
11readlink -f ../super/symlink_bon/ahoy -
Before doing this, back-up all data on any ext3 partitions that are to be converted to ext4. After running previous command you MUST run fsck, is needed to return the filesystem to a consistent state.
fsck -pDf /dev/yourpartitionEdit /etc/fstab and change the 'type' from ext3 to ext4 for any partitions that are converted to ext4.5tune2fs -O extents,uninit_bg,dir_index /dev/yourpartition - ‹ First < 482 483 484 485 486 > Last ›
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