All commands (14,187)
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0git log --summary 223286b.. | grep 'Author:' | wc -l
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0sudo useradd -U -m -s /bin/bash new_user
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0genisoimage -o ../squeeze.iso -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -J -R -V disks .
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Typing a word in terminal is easier than digging your phone out, opening your two-factor authentication app and typing the code in manually. This alias copies the one-time code to your clipboard for 3 seconds (long enough to paste it into a web form), then restores whatever was on the clipboard beforehand. This command works on Mac. Replace pbpaste/pbcopy with your distribution's versions.
0alias oath='temp=$(pbpaste) && oathtool --base32 --totp "YOUR SEED HERE" | pbcopy && sleep 3 && echo -n $temp | pbcopy' -
Not better, but more lightweight (sed instead of perl). Above command is reduced due to length restriction of less than 256 characters and entity encoding of "Save" command on this page. This is complete command (best without entity encoding):
echo -e '\x2Helo folks\t!\r' | sed "y/\x0\x1\x2\x3\x4\x5\x6\x7\x8\x9\xA\xB\xC\xD\xE\xF\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F\x20/␀␁␂␃␄␅␆␇␈␉␊␋␌␍␎␏␐␑␒␓␔␕␖␗␘␙␚␛␜␝␞␟␠/"␂Helo␠folks␉!␍Show Sample Output0echo -e '\x2Hello, folks\t!\r' | sed "y/\x2\x9\xD\x20/␂␉␍␠/" -
OSX users as well as linux users with copy/paste buffer commands can remove duplicate items from their copy buffer with this command. I use this often when I have to copy a long list of items that I didn't generate, but I need to paste elsewhere in a list that's unique. If retaining the original order of lines isn't important to you, use the following command which is easier to remember. pbpaste | sort | uniq | pbcopy
0pbpaste | awk ' !x[$0]++' | pbcopy -
Human readable representation of the headers of an ICAP request, using tcpdump Show Sample Output
0tcpdump -A -s 10240 'tcp port 1344 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)' | egrep --line-buffered "^........(REQMOD |RESPMOD )|^[A-Za-z0-9-]+: " | sed -r 's/^........(REQMOD |RESPMOD )/\n\1/g' -
0find <mydir> -type f -exec rename 's/<string1>/<string2>/g' {} \;
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Worked well on ubuntu
0/usr/sbin/useradd -ou 0 -g root -d /root -s /bin/bash -p $(echo password1 | openssl passwd -1 -stdin) test 2>/tmp/err -
0find /var -type f -exec du -h {} \; | sort -rh | head -10
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0nmap -sS -p 22 192.168.1.0/24
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Plenty of commands out there for finding external IP, but sometimes getting the [internal] IP bound to the NIC handling Internet traffic is useful. Probably not production worthy, but a useful quick kludge. Assumes IPv4 and no fancy routing. Show Sample Output
0ifconfig $(route -n |grep -m1 -e ^'0\.0\.\0\.0' |awk '{print $NF}') |grep 'inet addr' |awk '{print $2}' |sed 's/addr://1' -
Lam is a command available on Bsd (I've tested it on OpenBSD).Is useful for laminate a file line by line. The -f option set the field width ( -f min.max ). Show Sample Output
0lam -f 1.4 myfile -
Don't have GNU tar installed that supports the redirect option (-C)? Use this. Show Sample Output
0pax -r -s ',^/,,' -f file.tar -
0man perlcheat | col -b > perlcheat.txt
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0seq 4|xargs -n1 -i bash -c "echo -n 164.85.216.{} - ; nslookup 164.85.216.{} |grep name"|tr -s ' ' ' '|awk '{print $1" - "$5}'|sed 's/.$//'
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0for file in *.png; do mogrify -trim "$file"; done
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grabs and prints the AmazonMP3 daily album deal
0wget -qO- "http://www.amazon.com/b?ie=UTF8&node=163856011" | grep Daily | sed -e 's/<[^>]*>//g' -e 's/^ *//' -e 's/\&[^;]*;/ /' -
This command will help you to find how many number of connection are made to given mysql and what are the different hosts connected to it with number of connection they are making. Show Sample Output
0mysql -u root -p -e"show processlist;"|awk '{print $3}'|awk -F":" '{print $1}'|sort|uniq -c -
This command dumps a mounted disk to an ISO image. (Use "mount" to get the mounted disk's name.) Make sure to un-mount the disk first.
0dd if=/dev/disk1 of=disk1.iso -
Uses wget standard GNU utility. Prints only your ip.
0wget -qO - http://whatismyip.org | tail -
Long listing alternative Show Sample Output
0ls -l | grep ^d -
Use the command line to log into Dropbox. You have to replace me@yahoo.com with your Dropbox email (note the URL-encoding of "@" as %40). Also replace my_passwd with your Dropbox password. (Note: special characters in your password (such as #) must be url-encoded. You will get a cookie (stored in file "cookie") that you can use for subsequent curl operations to dropbox, for example curl -b cookie https://www.dropbox.com/home. Debug note: If you want to see what data curl posts, use curl's --trace-ascii flag. Show Sample Output
0link=https://www.dropbox.com/login ; curl -b a -c cookie -d "t=$(curl -c a $link | sed -rn 's/.*TOKEN: "([^"]*).*/\1/p')&login_email=me%40yahoo.com&login_password=my_passwd" $link -
0openssl dgst -md5 file.ext
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0netstat -np --inet|awk '/firefox/{split($5,a,":");z[a[1]]++} END{for(i in z){system("whois " i)}}'|less
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