Bash vs. Dash
Dash is a shell that has poor usability by modern necessities when used as an interactive log-in shell, nonetheless is faster in executing POSIX-compliant scripts than Bash.Bash has many further choices and is especially preferable when used interactively (although it does embrace further programming choices too). Bash is normally equipped as a result of the default interactive shell, whereas Debian and Debian-derivatives like Ubuntu current Dash as a result of the /bin/sh implementation, thereby inflicting scripts with #!/bin/sh shebangs to be interpreted by Dash barely than Bash by default. For scripts that require Bash for execution, Bash will nonetheless be used as a result of the interpreter if the shebang is #!/bin/bash. Numerous shell conditions are started as part of the Ubuntu boot course of. Rather than change each of them individually to run explicitly beneath /bin/dash, a change which could require necessary ongoing repairs and which is likely to be liable to regress if not paid shut consideration, the Ubuntu core enchancment group felt that it was biggest merely to differ the default shell.
Key Differences
Bash Supports the equivalent scripting directions as Dash along with its private additional directions, Dash Only helps POSIX compliant choices.
Samantha Walker
Dec 08, 2015
Dash implements the Single Unix Spec, then it would not should do further to satisfy that formal spec. But among the many "bashisms" are useful, would add little to the size of dash, and would make it far less complicated to utilize dash instead.
Plenty of shell scripts which embrace the command set –okay shouldn't supported by dash nonetheless supported by bash.
Bash is designed for human beings and provides a superset of POSIX efficiency, Dash is for non-interactive script execution.
Harlon Moss
Dec 08, 2015
Bash is an outstanding full-featured shell acceptable for interactive use; definitely, it is nonetheless the default login shell. However, it is barely large and sluggish to start out out up and operate by comparability with dash.
Dash is for Faster start-up and script execution as as compared with Bash.
Aimie Carlson
Dec 08, 2015
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Bash helps tab completion and Supports a command historic previous.
Harlon Moss
Dec 08, 2015
Dash is barely 100Okay as compared with Bash's 900Okay.
Aimie Carlson
Dec 08, 2015
Bash and Dash Definitions
Bash
To strike with a heavy, crushing blow
The thug bashed the hood of the car with a sledgehammer.
Dash
To move with haste; rush
Dashed into the room.
Dashed down the hall.
Bash
To beat or assault severely
The police arrested the men who bashed an immigrant in the park.
Dash
To strike violently; smash
Waves dashing on the rocks.
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Bash
(Informal) To criticize (another) harshly, accusatorially, and threateningly
"My point is not to bash teachers or healthcare providers" (Richard Weissbourd).
Dash
To break or smash by striking violently
The ship was dashed upon the rocks.
Bash
To engage in harsh, accusatory, threatening criticism.
Dash
To hurl, knock, or thrust with sudden violence
Dashed the cup against the wall.
Bash
(Informal) A heavy, crushing blow.
Dash
To remove by striking or wiping
Dash tears from one's face.
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Bash
(Slang) A celebration; a party.
Dash
To splash; bespatter
Dash water on one's face.
Bash
(informal) To strike heavily.
The thugs kept bashing the cowering victim.
If the engine won't start, bash it with this hammer.
Dash
To write hastily. Often used with off
Dashed off a note to the dean.
Bash
(informal) To collide; used with into or together.
Don't bash into me with that shopping trolley.
Dash
To drink hastily. Often used with down
Dashed down a glass of milk.
Bash
To criticize harshly.
He bashed my ideas.
Dash
To add an enlivening or altering element to
A speech dashed with humor.
Bash
To abash; to disconcert or be disconcerted or put out of countenance.
Dash
To affect by adding another element or ingredient to
Ice cream that was dashed with rum.
Bash
(informal) A forceful blow or impact.
He got a bash on the head.
Dash
To destroy or wreck
Our hopes were dashed by the news.
Bash
(informal) A large party; a gala event.
They had a big bash to celebrate their tenth anniversary.
Dash
To discourage or dispirit
"This discouraging information a little dashed the child" (Charles Dickens).
Bash
An attempt at doing something.
I'm not sure I'll be any good at this, but let me have a bash.
This was my first bash at macramé, so I'm quite pleased with how it's turned out.
Give something a bash
Dash
To damn.
Bash
To abash; to disconcert or be disconcerted or put out of countenance.
His countenance was bold and bashed not.
Dash
A swift, violent blow or stroke
Knocked the books to the floor with an impatient dash of his hand.
Bash
To strike heavily; to beat; to crush.
Bash her open with a rock.
Dash
A splash
Threw a dash of water on my face.
Bash
A forceful blow, especially one that does damage to its target.
Dash
A small amount of an added ingredient
A dash of sherry.
Bash
A elaborate or lively social gathering or party.
Dash
A quick stroke, as with a pencil or brush.
Bash
A vigorous blow;
The sudden knock floored him
He took a bash right in his face
He got a bang on the head
Dash
A sudden movement; a rush
Made a dash for the exit.
Bash
An uproarious party
Dash
(Sports) A footrace, usually less than a quarter-mile long, run at top speed from the outset.
Bash
Hit hard
Dash
A spirited quality in action or style; verve.
Dash
Either of two symbols, an emdash or an endash, used in writing and in printing.
Dash
In Morse and similar codes, the long sound or signal used in combination with the dot and silent intervals to represent letters or numbers.
Dash
A dashboard.
Dash
(typography) Any of the following symbols: ‒ (figure dash), – (en dash), — (em dash), or ― (horizontal bar).
Dash
(computing) A hyphen or minus sign.
Dash
(by extension) The longer of the two symbols of Morse code.
Dash
A short run, flight.
When the feds came they did the dash.
Dash
A rushing or violent onset.
Dash
Violent strike; a whack.
Dash
A small quantity of a liquid substance etc.; less than 1/8 of a teaspoon.
Add a dash of vinegar.
Dash
A slight admixture.
There is a dash of craziness in his personality.
Dash
Ostentatious vigor.
Aren't we full of dash this morning?
Dash
A dashboard.
Dash
A bribe or gratuity; a gift.
Dash
A stand-in for a censored word, like "Devil" or "damn". (Compare deuce.)
Dash
The dashboard of a Tumblr user.
Dash
(intransitive) To run quickly or for a short distance.
He dashed across the field.
Dash
To leave or depart.
I have to dash now. See you soon.
Dash
(transitive) To destroy by striking (against).
He dashed the bottle against the bar and turned about to fight.
Dash
(transitive) To throw violently.
The man was dashed from the vehicle during the accident.
Dash
To sprinkle; to splatter.
Dash
To mix, reduce, or adulterate, by throwing in something of an inferior quality.
To dash wine with water
Dash
To ruin; to destroy.
Her hopes were dashed when she saw the damage.
Dash
(transitive) To dishearten; to sadden.
Her thoughts were dashed to melancholy.
Dash
To complete hastily.
He dashed down his eggs.
She dashed off her homework.
Dash
(transitive) To draw or write quickly; jot.
Dash
Damn in forming oaths.
Dash his impudence! Who is that scoundrel?
Dash
(euphemistic) Damn!
Dash
To throw with violence or haste; to cause to strike violently or hastily; - often used with against.
If you dash a stone against a stone in the botton of the water, it maketh a sound.
Dash
To break, as by throwing or by collision; to shatter; to crust; to frustrate; to ruin.
Thou shalt dash them in pieces like a potter's vessel.
A brave vessel, . . . Dashed all to pieces.
To perplex and dashMaturest counsels.
Dash
To put to shame; to confound; to confuse; to abash; to depress.
Dash the proud gamester in his gilded car.
Dash
To throw in or on in a rapid, careless manner; to mix, reduce, or adulterate, by throwing in something of an inferior quality; to overspread partially; to bespatter; to touch here and there; as, to dash wine with water; to dash paint upon a picture.
I take care to dash the character with such particular circumstance as may prevent ill-natured applications.
The very source and fount of dayIs dashed with wandering isles of night.
Dash
To form or sketch rapidly or carelessly; to execute rapidly, or with careless haste; - with off; as, to dash off a review or sermon.
Dash
To erase by a stroke; to strike out; knock out; - with out; as, to dash out a word.
Dash
To rush with violence; to move impetuously; to strike violently; as, the waves dash upon rocks.
[He] dashed through thick and thin.
On each hand the gushing waters play,And down the rough cascade all dashing fall.
Dash
Violent striking together of two bodies; collision; crash.
Dash
A sudden check; abashment; frustration; ruin; as, his hopes received a dash.
Dash
A slight admixture, infusion, or adulteration; a partial overspreading; as, wine with a dash of water; red with a dash of purple.
Innocence when it has in it a dash of folly.
Dash
A rapid movement, esp. one of short duration; a quick stroke or blow; a sudden onset or rush; as, a bold dash at the enemy; a dash of rain.
She takes upon her bravely at first dash.
Dash
Energy in style or action; animation; spirit.
Dash
A vain show; a blustering parade; a flourish; as, to make or cut a great dash.
Dash
A mark or line [-], in writing or printing, denoting a sudden break, stop, or transition in a sentence, or an abrupt change in its construction, a long or significant pause, or an unexpected or epigrammatic turn of sentiment. Dashes are also sometimes used instead of marks or parenthesis.
Dash
The sign of staccato, a small mark [ ] denoting that the note over which it is placed is to be performed in a short, distinct manner.
Dash
A short, spirited effort or trial of speed upon a race course; - used in horse racing, when a single trial constitutes the race.
Dash
Distinctive and stylish elegance;
He wooed her with the confident dash of a cavalry officer
Dash
A quick run
Dash
A footrace run at top speed;
He is preparing for the 100-yard dash
Dash
A punctuation mark (-) used between parts of a compound word or between the syllables of a word when the word is divided at the end of a line of text
Dash
The longer of the two telegraphic signals used in Morse code
Dash
The act of moving with great haste;
He made a dash for the door
Dash
Run or move very quickly or hastily;
She dashed into the yard
Dash
Break into pieces, as by striking or knocking over;
Smash a plate
Dash
Hurl or thrust violently;
He dashed the plate against the wall
Waves were dashing against the rock
Dash
Destroy or break;
Dashed ambitions and hopes
Dash
Cause to lose courage;
Dashed by the refusal
Dash
Add an enlivening or altering element to;
Blue paint dashed with white
What is Bash?
Bash is the Bourne-Once extra shell. Bash is an outstanding full-featured shell acceptable for interactive use; definitely, it is nonetheless the default login shell. Bash is designed for human beings and provides a superset of POSIX efficiency.
What is Dash?
Dash is the Debian Almquist Shell. Dash implements the Single Unix Spec, then it would not should do further to satisfy that formal spec. Dash is for non-interactive script execution. Dash Only helps POSIX compliant choices.
