Commands by symgryph (9)

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Detect illegal access to kernel space, potentially useful for Meltdown detection
Based on capsule8 agent examples, not rigorously tested

Show current weather for any US city or zipcode
Scrape the National Weather Service

Bash function that saves bash functions to file from shell session
The simpler, 1-arg version is save_function(){ { date +"# %F.%T $1; declare -f "$1";}| tee -a ~/.bash_functions; }`

find both total size and number of files below any given svn directory
afaik, svn doesn't have a good, scriptable way of telling you these two basic pieces of information.

Rename .JPG to .jpg recursively
This command is useful for renaming a clipart, pic gallery or your photo collection. It will only change the big caps to small ones (on the extension).

See why a program can't seem to access a file
Sometimes a program refuses to read a file and you're not sure why. You may have display_errors turned off for PHP or something. In this example, fopen('/var/www/test/foo.txt') was called but doesn't have read access to foo.txt. Strace can tell you what went wrong. E.g., if php doesn't have read access to the file, strace will say "EACCESS (Permission denied)". Or, if the file path you gave doesn't exist, strace will say "ENOENT (No such file or directory)", etc. This works for any program you can run from the command-line, e.g., strace python myapp.py -e open,access... Note: the above command uses php-cli, not mod_php, which is a different SAPI with diff configs, etc.

Delete all but the latest 5 files
yes 6 (tail from 6th line)

Put public IP address in a variable

Protect against buffer overflow
This command solve the problem ping: sendmsg: No buffer space available to.

Bulk renames with find, sed and a little escaping
This command is a more flexible than my previous submission. It will work with spaces however suuuuper hacky and ugly. Source: http://www.unix.com/shell-programming-scripting/146173-find-rename-files-using-find-mv-sed.html


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