Commands by ruslan (10)

  • Checks for syntax errors in PHP files modified in current working copy of a Git repository. Show Sample Output


    1
    git status -s | grep -o ' \S*php$' | while read f; do php -l $f; done
    ruslan · 2013-12-14 11:47:54 0
  • The sample command searches for PHP files replacing tabs with spaces. -u NONE # don't use vimrc Instead of retab! one may pass retab! 4 for instance. Look at this http://susepaste.org/69028693 also


    -2
    find $DIR -name *.php -exec vim -u NONE -c 'set ft=php' -c 'set shiftwidth=4' -c 'set tabstop=4' -c 'set noexpandtab!' -c 'set noet' -c 'retab!' -c 'bufdo! "execute normal gg=G"' -c wq {} \;
    ruslan · 2011-04-08 11:42:45 0
  • M - current revision, N - older revision


    1
    svn diff -r M:N file.php | patch -p0
    ruslan · 2011-03-29 04:15:02 2
  • Creates HTML code from PHP source Show Sample Output


    1
    php -s source.php > source.html
    ruslan · 2011-03-10 15:11:35 0

  • 0
    wget http://cmyip.com -O - -o /dev/null | grep -Po '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+'
    ruslan · 2011-02-28 16:46:14 0
  • Get external IP of the current machine via http://cmyip.com Show Sample Output


    -3
    wget http://cmyip.com -O - -o /dev/null | awk '/\<title/ {print $4}'
    ruslan · 2011-02-15 05:58:30 1
  • in Debian-based systems apt-get could be limited to the specified bandwidth in kilobytes using the apt configuration options(man 5 apt.conf, man apt-get). I'd quote man 5 apt.conf: "The used bandwidth can be limited with Acquire::http::Dl-Limit which accepts integer values in kilobyte. The default value is 0 which deactivates the limit and tries uses as much as possible of the bandwidth..." "HTTPS URIs. Cache-control, Timeout, AllowRedirect, Dl-Limit and proxy options are the same as for http..."


    2
    sudo apt-get -o Acquire::http::Dl-Limit=20 -o Acquire::https::Dl-Limit=20 upgrade -y
    ruslan · 2011-02-14 05:24:49 0
  • This form is used in patches, svn, git etc. And I've created an alias for it: alias diff='diff -Naur --strip-trailing-cr' The latter option is especially useful, when somebody in team works in Windows; could be also used in commands like svn diff --diff-cmd 'diff --strip-trailing-cr'... Show Sample Output


    4
    diff -Naur --strip-trailing-cr
    ruslan · 2011-02-10 14:32:42 0
  • If colordiff utility installed, it is sometimes handy to call this command. Of course, you should create an alias for it. E.g. svndiff.


    1
    svn diff --diff-cmd="colordiff"
    ruslan · 2011-02-10 14:27:55 1
  • The command copies a file from remote SSH host on port 8322 with bandwidth limit 100KB/sec; --progress shows a progress bar --partial turns partial download on; thus, you can resume the process if something goes wrong --bwlimit limits bandwidth by specified KB/sec --ipv4 selects IPv4 as preferred I find it useful to create the following alias: alias myscp='rsync --progress --partial --rsh="ssh -p 8322" --bwlimit=100 --ipv4' in ~/.bash_aliases, ~/.bash_profile, ~/.bash_login or ~/.bashrc where appropriate. Show Sample Output


    17
    rsync --progress --partial --rsh="ssh -p 8322" --bwlimit=100 --ipv4 user@domain.com:~/file.tgz .
    ruslan · 2011-02-10 14:25:22 2

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monitor a tail -f command with multiple processes
when using named pipes only one reader is given the output by default. Also, most commands piped to by grep use a buffer which save output until tail -f finishes, which is not convenient. Here, using a combination of tee, sub-processes and the --line-buffered switch in grep we can workaround the problem.

show all programs connected or listening on a network port
Use the aliased command 'nsl'

Command to logout all the users in one command
Only to logout all users except root

Remove a range of lines from a file
Deletes lines from START to END, inclusive. For example +4,10d will delete line 4, 5, ..., 10. Just like the vi command :4,10d does it.

List 10 largest directories in current directory
du -m option to not go across mounts (you usually want to run that command to find what to destroy in that partition) -a option to also list . files -k to display in kilobytes sort -n to sort in numerical order, biggest files last tail -10 to only display biggest 10

Copy with progress

check open ports without netstat or lsof

Watch how many tcp connections there are per state every two seconds.
slighty shorter

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Resets your MAC to a random MAC address to make you harder to find.
Next time you are leaching off of someone else's wifi use this command before you start your bittorrent ...for legitimate files only of course. It creates a hexidecimal string using md5sum from the first few lines of /dev/urandom and splices it into the proper MAC address format. Then it changes your MAC and resets your wireless (wlan0:0).


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