All commands (14,187)
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cp options: -p will preserve the file mode, ownership, and timestamps -r will copy files recursively also, if you want to keep symlinks in addition to the above: use the -a/--archive option
4cp -pr olddirectory newdirectory -
This will download a Youtube playlist and mostly anything http://code.google.com/apis/youtube/2.0/reference.html#Video_Feeds The files will be saved by $id.flv
3y=http://www.youtube.com;for i in $(curl -s $f|grep -o "url='$y/watch?v=[^']*'");do d=$(echo $i|sed "s|url\='$y/watch?v=\(.*\)&.*'|\1|");wget -O $d.flv "$y/get_video.php?video_id=$d&t=$(curl -s "$y/watch?v=$d"|sed -n 's/.* "t": "\([^"]*\)",.*/\1/p')";done -
4yes n
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It's the same like 'cp -p' if available. It's faster over networks than scp. If you have to copy gigs of data you could also use netcat and the tar -z option in conjunction -- on the receiving end do: # nc -l 7000 | tar -xzvpf - ...and on the sending end do: # tar -czf - * | nc otherhost 7000
1tar -C /oldirectory -cvpf - . | tar -C /newdirector -xvf - -
5jot -r -n 8 0 9 | rs -g 0
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This will allow you to watch as matches occur in real-time. To filter out only ACCEPT, DROP, LOG..etc, then run the following command: watch 'iptables -nvL | grep -v "0 0" && grep "ACCEPT"' The -v is used to do an inverted filter. ie. NOT "0 0"
7watch --interval 0 'iptables -nvL | grep -v "0 0"' -
6find /backup/directory -name "FILENAME_*" -mtime +15 | xargs rm -vf
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It only works in zsh
1rmdir **/*(/^F) -
Sqlite database keeps collecting cruft as time passes, which can be cleaned by the 'vacuum;' command. This command cleans up the cruft in all sqlite files relating to the user you have logged in as. This command has to be run when firefox is not running, or it will exit displaying the pid of the firefox running.
11pgrep -u `id -u` firefox-bin || find ~/.mozilla/firefox -name '*.sqlite'|(while read -e f; do echo 'vacuum;'|sqlite3 "$f" ; done) -
List files and sizes
0find / -type f -exec wc -c {} \; | sort -nr | head -100 -
Reverse DNS lookups, from a file with list of IP's, here the file is called lookups.txt
-1sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).in-addr.arpa domain name pointer\(.*\)\./\4.\3.\2.\1\5/' \ lookups.txt -
Ping sweep without NMAP
3for i in `seq 1 255`; do ping -c 1 10.10.10.$i | tr \\n ' ' | awk '/1 received/ {print $2}'; done -
DNS cache snooping
0for i in `cat names.txt`; do host -r $i [nameserver]; done -
Show account security settings Show Sample Output
3chage -l <user> -
"cut" the user names from /etc/passwd and then running a loop over them. Show Sample Output
3for u in `cut -f1 -d: /etc/passwd`; do echo -n $u:; groups $u; done | sort -
You can also use, $ find . -depth -type d -exec rmdir {} \; 2>/dev/null
6find . -type d -empty -delete -
3echo $(( $RANDOM % 10 + 1 ))
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1echo init 0 | at now + 2 hours
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-1export PS1='\D{%a %D %T}> '
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Tested in Linux and OSX Show Sample Output
19lsof -Pni4 | grep LISTEN -
0for i in `grep "unable to stat" /var/log/syslog | cut -d "/" -f 3 | sort | uniq`; do find /var/qmail/queue -name $i -type f -exec rm -v {} \; ; done
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0mailq | grep DrWEB | awk {'print $1'} | sed s/*//g | postsuper -d -
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0id=<XXXX>; find /var/spool/postfix/ -name $id -exec less {} \;
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Alter "AddHandler php5-cgi .php" and "AddHandler php4-cgi .php" entries to new "AddHandler x-httpd-php5 .php" respective php4 entries in all .htaccess files under /var/www Show Sample Output
0find /var/www/ -type f -name ".htaccess" -exec perl -pi -e 's/AddHandler[\s]*php(4|5)-cgi/AddHandler x-httpd-php\1/' {} \; -
allows you to use floating point operations in shell scripts Show Sample Output
3echo "scale=4; 3 / 5" | bc - ‹ First < 459 460 461 462 463 > Last ›
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