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Terminal - All commands - 11,619 results
less +F somelogfile
2009-02-19 14:33:46
User: adamm9
Functions: less
114

Using +F will put less in follow mode. This works similar to 'tail -f'. To stop scrolling, use the interrupt. Then you'll get the normal benefits of less (scroll, etc.).

Pressing SHIFT-F will resume the 'tailling'.

telnet towel.blinkenlights.nl
net rpc shutdown -I ipAddressOfWindowsPC -U username%password
2009-05-31 07:18:01
User: LrdShaper
Functions: shutdown
Tags: Linux windows
105

This will issue a shutdown command to the Windows machine. username must be an administrator on the Windows machine. Requires samba-common package installed. Other relevant commands are:

net rpc shutdown -r : reboot the Windows machine

net rpc abortshutdown : abort shutdown of the Windows machine

Type:

net rpc

to show all relevant commands

curl -u username --silent "https://mail.google.com/mail/feed/atom" | perl -ne 'print "\t" if /<name>/; print "$2\n" if /<(title|name)>(.*)<\/\1>/;'
2009-09-08 06:53:39
User: sitaram
Functions: perl
100

notice what happens when there is more than one unread message in a thread...

also people please dont hardcode the password when you use curl. Leave it out and curl will ask you when it runs. Please...?

ping -i 60 -a IP_address
2009-03-04 06:21:22
User: haivu
Functions: ping
Tags: Network
100

Waiting for your server to finish rebooting? Issue the command above and you will hear a beep when it comes online. The -i 60 flag tells ping to wait for 60 seconds between ping, putting less strain on your system. Vary it to your need. The -a flag tells ping to include an audible bell in the output when a package is received (that is, when your server comes online).

disown -a && exit
<alt> + <print screen/sys rq> + <R> - <S> - <E> - <I> - <U> - <B>
2009-02-20 07:28:56
User: dizzgo
99

If the machine is hanging and the only help would be the power button, this key-combination will help to reboot your machine (more or less) gracefully.

R - gives back control of the keyboard

S - issues a sync

E - sends all processes but init the term singal

I - sends all processes but init the kill signal

U - mounts all filesystem ro to prevent a fsck at reboot

B - reboots the system

Save your file before trying this out, this will reboot your machine without warning!

http://en.wikipedia.org/wiki/Magic_SysRq_key

echo "You can simulate on-screen typing just like in the movies" | pv -qL 10
2010-01-14 20:17:44
User: dennisw
Functions: echo
96

This will output the characters at 10 per second.

history | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head
getconf LONG_BIT
2009-08-08 21:22:19
User: caiosba
Functions: getconf
Tags: getconf 32 64
95

Easy and direct way to find this out.

ps aux | sort -nk +4 | tail
2009-01-23 17:12:33
User: root
Functions: ps sort
93

ps returns all running processes which are then sorted by the 4th field in numerical order and the top 10 are sent to STDOUT.

while sleep 1;do tput sc;tput cup 0 $(($(tput cols)-29));date;tput rc;done &
2011-02-17 11:13:19
User: glaudiston
Functions: sleep tput
89

A nice way to use the console in full screen without forget the current time.

you can too add other infos like cpu and mem use.

pushd /tmp
2009-02-16 16:52:59
User: ruedu
83

If are a Bash user and you are in a directory and need to go else where for a while but don't want to lose where you were, use pushd instead of cd.

cd /home/complicated/path/.I/dont/want/to/forget

pushd /tmp

cd thing/in/tmp

popd (returns you to /home/complicated/path/.I/dont/want/to/forget)

\[command]
2009-02-11 19:34:21
User: wwest4
83

e.g. if rm is aliased for 'rm -i', you can escape the alias by prepending a backslash:

rm [file] # WILL prompt for confirmation per the alias

\rm [file] # will NOT prompt for confirmation per the default behavior of the command

lsof -i
CDPATH=:..:~:~/projects
2009-03-20 14:50:25
User: haivu
Tags: bash
81

CDPATH tells the cd command to look in this colon-separated list of directories for your destination. My preferred order are 1) the current directory, specified by the empty string between the = and the first colon, 2) the parent directory (so that I can cd lib instead of cd ../lib), 3) my home directory, and 4) my ~/projects directory.

echo "!!" > foo.sh
2009-02-25 00:37:25
User: dnavarre
Functions: echo
81

Sometimes commands are long, but useful, so it's helpful to be able to make them permanent without having to retype them. An alternative could use the history command, and a cut/sed line that works on your platform.

history -1 | cut -c 7- > foo.sh
awk '/start_pattern/,/stop_pattern/' file.txt
2009-03-28 14:28:59
User: atoponce
Functions: awk
80

I find this terribly useful for grepping through a file, looking for just a block of text. There's "grep -A # pattern file.txt" to see a specific number of lines following your pattern, but what if you want to see the whole block? Say, the output of "dmidecode" (as root):

dmidecode | awk '/Battery/,/^$/'

Will show me everything following the battery block up to the next block of text. Again, I find this extremely useful when I want to see whole blocks of text based on a pattern, and I don't care to see the rest of the data in output. This could be used against the '/etc/securetty/user' file on Unix to find the block of a specific user. It could be used against VirtualHosts or Directories on Apache to find specific definitions. The scenarios go on for any text formatted in a block fashion. Very handy.

diff <(sort file1) <(sort file2)
2009-02-04 22:20:13
User: systemj
Functions: diff sort
80

bash/ksh subshell redirection (as file descriptors) used as input to diff

!*
2009-06-21 17:58:01
User: Neo23x0
78

!* is all of the arguments to the previous command rather than just the last one.

This is useful in many situations.

Here's a simple example:

vi cd /stuff

oops!

[exit vi, twice]

!*

expands to: cd /stuff

nc -v -l 80 < file.ext
2009-02-17 14:39:52
User: moz667
77

From the other machine open a web navigator and go to ip from the machine who launch netcat, http://ip-address/

If you have some web server listening at 80 port then you would need stop them or select another port before launch net cat ;-)

* You need netcat tool installed

some_very_long_and_complex_command # label
2009-09-08 05:58:27
User: jamolkhon
76

When using reverse-i-search you have to type some part of the command that you want to retrieve. However, if the command is very complex it might be difficult to recall the parts that will uniquely identify this command. Using the above trick it's possible to label your commands and access them easily by pressing ^R and typing the label (should be short and descriptive).

UPDATE:

One might suggest using aliases. But in that case it would be difficult to change some parts of the command (such as options, file/directory names, etc).

echo "The date is: $(date +%D)"
2009-03-07 15:51:59
User: atoponce
Functions: echo
76

This is a simple example of using proper command nesting using $() over ``. There are a number of advantages of $() over backticks. First, they can be easily nested without escapes:

program1 $(program2 $(program3 $(program4)))

versus

program1 `program2 \`program3 \`program4\`\``

Second, they're easier to read, then trying to decipher the difference between the backtick and the singlequote: `'. The only drawback $() suffers from is lack of total portability. If your script must be portable to the archaic Bourne shell, or old versions of the C-shell or Korn shell, then backticks are appropriate, otherwise, we should all get into the habit of $(). Your future script maintainers will thank you for producing cleaner code.

mv filename.{old,new}