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How To delete specific symbols from a linux file? – CentOS

My Linux file contains of over 4000 lines of code similar to this:

[INSERT INTO DATAMART_QUEUE_DETAILS(EVENT_TIME,QUEUE,EVENT,TRACKNUM,QUEUE_TYPE,ASSOCIATED_ROUTING_SCRIPT,ANI,DNIS,CHANNEL_TYPE) VALUES ('2021.01.01 15:31:57','Electrolux', 'abandoned', '1609507904.86839', 'ROUTING_SCRIPT', 'Electrolux', '01008367900', '886123', 'CALL')]
[INSERT INTO DATAMART_QUEUE_DETAILS(EVENT_TIME,QUEUE,EVENT,TRACKNUM,QUEUE_TYPE,ASSOCIATED_ROUTING_SCRIPT,ANI,DNIS,CHANNEL_TYPE) VALUES ('2021.01.01 15:31:59','Electrolux-Inst', 'queued', '1609507878.86832', 'VIRTUAL', 'Electrolux', '01552050703', '886123', 'CALL')]
[INSERT INTO DATAMART_QUEUE_DETAILS(EVENT_TIME,QUEUE,EVENT,TRACKNUM,QUEUE_TYPE,ASSOCIATED_ROUTING_SCRIPT,ANI,DNIS,CHANNEL_TYPE) VALUES ('2021.01.01 15:31:59','Electrolux', 'distributed', '1609507878.86832', 'ROUTING_SCRIPT', 'Electrolux', '01552050703', '886123', 'CALL')]
[INSERT INTO DATAMART_QUEUE_DETAILS(EVENT_TIME,QUEUE,EVENT,TRACKNUM,QUEUE_TYPE,ASSOCIATED_ROUTING_SCRIPT,ANI,DNIS,CHANNEL_TYPE) VALUES ('2021.01.01 15:31:59','Electrolux-Inst', 'distributed', '1609507878.86832', 'VIRTUAL', 'Electrolux', '01552050703', '886123', 'CALL')]

I need linux command(s) to delete the square brackets [ ] from the file so that it looks something like this:

INSERT INTO DATAMART_QUEUE_DETAILS(EVENT_TIME,QUEUE,EVENT,TRACKNUM,QUEUE_TYPE,ASSOCIATED_ROUTING_SCRIPT,ANI,DNIS,CHANNEL_TYPE) VALUES ('2021.01.01 15:31:57','Electrolux', 'abandoned', '1609507904.86839', 'ROUTING_SCRIPT', 'Electrolux', '01008367900', '886123', 'CALL')
INSERT INTO DATAMART_QUEUE_DETAILS(EVENT_TIME,QUEUE,EVENT,TRACKNUM,QUEUE_TYPE,ASSOCIATED_ROUTING_SCRIPT,ANI,DNIS,CHANNEL_TYPE) VALUES ('2021.01.01 15:31:59','Electrolux-Inst', 'queued', '1609507878.86832', 'VIRTUAL', 'Electrolux', '01552050703', '886123', 'CALL')
INSERT INTO DATAMART_QUEUE_DETAILS(EVENT_TIME,QUEUE,EVENT,TRACKNUM,QUEUE_TYPE,ASSOCIATED_ROUTING_SCRIPT,ANI,DNIS,CHANNEL_TYPE) VALUES ('2021.01.01 15:31:59','Electrolux', 'distributed', '1609507878.86832', 'ROUTING_SCRIPT', 'Electrolux', '01552050703', '886123', 'CALL')
INSERT INTO DATAMART_QUEUE_DETAILS(EVENT_TIME,QUEUE,EVENT,TRACKNUM,QUEUE_TYPE,ASSOCIATED_ROUTING_SCRIPT,ANI,DNIS,CHANNEL_TYPE) VALUES ('2021.01.01 15:31:59','Electrolux-Inst', 'distributed', '1609507878.86832', 'VIRTUAL', 'Electrolux', '01552050703', '886123', 'CALL')

Finally, I want to insert these lines directly to MySQL query.

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2

Answers


  1. 0

    A cheap and cheerful way is

    tr -d '[]' < infile > outfile

    Edit: I should add that this won’t have the desired result if [ or ] occurs in the data.

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  2. 0

    Even though this question already has an answer, I’d like to share my own solution here:

    cat infile | sed 's/^[(.*)]$/1/' > outfile

    Explanation:

    • s: substitute command s/regexp/replacement/flags
    • ^: start of string
    • [: The literal character [
    • (.*): A group that captures everything
    • ]: The literal character ]
    • $: end of string
    • 1: text in the first capturing group ((.*))

    EDIT: in fact, this solution works even if there are ‘[‘ or ‘]’ inside the input

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