Чем могут быть полезны регулярные выражения для разработчика интерфейсов? О каких возможностях следует знать больше? Где находятся «подводные камни» и как обойти их в различных реализациях? И, наконец, что делать, если возможностей встроенной реализации регулярных выражений недостаточно?
Linux users have some weird sadism where they recommend noobs to try to do the most difficult things when first using Linux, as if its normal to install a dozen virtual machines, run everything in Wine and a GPU passthrough. Thats the perfect recipe to make your life miserable and its better to help people to actually use Linux the way its intended to be used!
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This video is a crash course to help new users get started with BASH. Here is a list of the commands well cover:
BEGINNERS GUIDE TO THE BASH TERMINAL
NAVIGATION
ls — list directory contents
pwd — print name of current/working directory
cd — change working directory
pushd/popd — put working directory on a stack
file — determine file type
locate — find files by name
updatedb — update database for locate
which — locate a command
history — display bash command history
GETTING HELP
whatis — display the on-line manual descriptions
apropos — search the manual page names and descriptions
man — an interface to the on-line reference manuals
cat — concatenate files and print on the standard output
more/less — file perusal filter for crt viewing
nano — command line text editor
USERS
sudo — execute a command as superuser
su — change user ID or become another user
users — print the user names of users currently logged in
id — print real and effective user and group IDs
CHANGING FILE PERMISSIONS
chmod — change permissions of a file
KILLING PROGRAMS AND LOGGING OUT
Ctrl C — kill a running command
killall — kill processes by name
exit — log out of bash
USEFUL SHORTCUTS
Ctrl D — signal bash that there is no more input
Ctrl L — redraw the screen
Ctrl — make text bigger in terminal emulator
Ctrl — - make text smaller in terminal emulator