Justin Phillip Riley-Burnie was convicted of common assault and a string of bail and family violence order breach charges when he appeared in Launceston Magistrates Court on Thursday.

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The 22-year-old pleaded guilty to all charges.

Magistrate Ken Stanton told the court a dispute about cigarettes preceded the assault.

"She didn't have any money to go and get cigarettes," Mr Stanton said.

"You attacked the victim by pushing her and holding her on the couch by her hair."

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Mr Stanton said it was a "nasty, unjustified, demeaning assault", Riley-Burnie had previously been handed a suspended prison sentence and also received 13 prior convictions for breaching court orders.

"It's clear that that suspended sentence did not deter you from further similar breaches," Magistrate Stanton told Riley-Burnie.

"You have displayed a complete and utter disregard for the court orders ... you give no weight to court orders and simply ignore them."

Mr Stanton said Riley-Burnie had also been convicted of common assault twice previously.

"The overall picture is that you have not substantially rehabilitated," he told Riley-Burnie.

Mr Stanton activated the 55-day balance of Riley-Burnie's suspended sentence.

He was also sentenced to three months in jail, to be served concurrent to the activated suspended sentence.

He was also placed on a community corrections order for 12 months, which would force him to complete drug addiction and family violence offender reform programs.