Commands by eduo (4)

  • Finder compresses to ZIP but always includes extraneous metadata files (__MACOSX and .DS_Store) files and folders that may confuse other programs. One alternative is creating them and then editing the ZIP. This can work standalone or in an automator script accepting multiple selections (files or folders) and creating one zip per argument/selected file without that metada.

    echo "$@" for f in "$@"; do FILENAME=${f##*/};FILEPATH=${f%/*}; cd "${FILEPATH}"; zip -r "${f}".zip "${FILENAME}" -x "*.DS_Store" -x "__MACOSX"; done; afplay /System/Library/Sounds/Sosumi.aiff
    eduo · 2018-10-20 12:27:50 0
  • 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. Show Sample Output

    members () { dscl . -list /Users | while read user; do printf "$user "; dsmemberutil checkmembership -U "$user" -G "$*"; done | grep "is a member" | cut -d " " -f 1; };
    eduo · 2012-05-20 11:34:33 0
  • Line can be modified as needed. This considers weekdays to be Mon-Fri. If run any working day it'll provide a parameters for the next working day for "at". "beep" provided as a sample command. This can be modified easily to include wait time. If you need something to run "D" days after today: # D=4;if [ $(date +%u --date="${D} days") -lt 5 ];then AT="+${D} days";else AT="next monday";fi; echo "beep" | at noon ${AT}

    if [ $(date +%u) -lt 6 ];then AT="tomorrow"; else AT="next monday";fi;echo "beep" | at ${AT}
    eduo · 2011-06-01 14:15:11 2
  • Useful for use in other scripts for renaming, testing for extensions, etc. Show Sample Output

    eduo · 2009-06-10 16:11:38 4

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online MAC address lookup

Get a quick list of all user and group owners of files and dirs under the cwd.
find -printf '%u\n' | sort | uniq #just users find -printf '%g\n' | sort | uniq #just groups

Print all the lines between 10 and 20 of a file
Subtly different to the -n+p method... and probably wrong in so many ways....... But it's shorter. Just.

Revert all modified files in an SVN repo

Reset hosed terminal,
stty sane resets the tty to basic usable function. The ^J is a newline -- sometimes CR/LF interpretation is broken so use the ^J explicitly.

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"

Get gzip compressed web page using wget.
Get gzip compressed web page using wget. Caution: The command will fail in case website doesn't return gzip encoded content, though most of thw websites have gzip support now a days.

Find files with root setuids settings

lists files and folders in a folder
lists files and folders in a folder with summary.

Automatically rename tmux window using the current working directory
Adds a function that runs every time the prompt is rendered. The function grabs the CWD from PWD and issues a command to tmux to change the current window

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