ls ????

ls *4

ls ****

ls ?4

Bourne Agent Shell

Bourne Again Shell

Bourne Again Software

can read input or receive keyboard-generated interrupts from the terminal,

cannot read input but does receive keyboard-generated interrupts from the terminal,

waits for user input from the keyboard

cannot read input or receive keyboard-generated

interrupts from the terminal,

An address space of allocated memory

Security properties including ownership credentials and

privileges

One or more execution threads of program code

A process state

An address space of allocated memory

Security properties including ownership credentials and privileges

One or more execution threads of program code

The username of the process

An address space of requested memory

Security properties including ownership credentials and privileges

One or more execution threads of program code

A process state

Local and global variables

A current scheduling context

Count=50

echo {$Count}x

Count==50

echo ${Count}x

Count=50

echo $Countx

Count=50

echo ${Count}x

HCl – 2 М.   

HNO₃

NH₄OH   

H₂SO₄ 

CH₃COOH

розчин Br₂ у воді 

насичений розчин CaSO₄ у воді 

насичений розчин CO₂ у воді  

розчин Ba(NO₃)₂ у воді      

Утворюється білий кристалічний осад 

Випадає жовтий осад

Розчин набуває жовтого забарвлення  

Випадає бурий осад 

розчин NaOH 

розчин H₂SO₄

група не має групового реагенту

розчин HCl