Replace string and move part to result using Bash

Question

text="TASK {5662}: Task definition"
result="TASK [5662](htttps://somelink.com/task/5662): Task definition"

need to "{5662}" replace with "[5662](htttps://somelink.com/task/5662)" using bash

count of task's number maybe equals or more than 4 digits

any ideas?

@AndreyTyukin already tried find \{[0-9]{4,}\} as variable and replace with sed, but i have lot of same lines — ykembayev
– ykembayev, Commented May 15, 2018 at 11:43

Nahuel Fouilleul · Accepted Answer · 2018-05-15 11:25:13Z

2

using bash regex and expansion features

text="TASK {5662}: Task definition"
re='^TASK \{([0-9]{4,})\}: Task definition$'
if [[ $text =~ $re ]]; then
    id=${BASH_REMATCH[1]}
    result=${text/"{$id}"/"[$id](htttps://somelink.com/task/$id)"}
else
    result=
fi

answered May 15, 2018 at 11:25

Nahuel Fouilleul

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ykembayev Over a year ago

lot of thnx! used re='\{([0-9]{4,})\}'

RavinderSingh13 · Accepted Answer · 2018-05-15 11:28:44Z

1

Solution 1st: Following awk may help you on same. (where I am not hard coding the digits simply matching it by regex and putting new values then)

awk --re-interval -v val="[5662](htttps://somelink.com/task/5662)" 'match($0,/[0-9]{4}/){print substr($0,1,RSTART-1) val substr($0,RSTART+RLENGTH+1)}' Input_file

Also --re-interval is for old versions of awk for new versions of awk it may not needed too.

Solution 2nd: With sed by hard coding digits:

sed 's#{5662}#[5662](htttps://somelink.com/task/5662)#'  Input_file

answered May 15, 2018 at 11:28

RavinderSingh13

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