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at command - Run a shell script or command at a specific time in linux terminal In this article we can learn how to run a command at specific time in linux. Run and execute a command or shell script in specific given time in linux terminal. Execute a command at specific time: 1 echo "/usr/bin/notify-send hello" | at …
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Array - Get element values at specific starting position in linux bash shell In this article we can learn how to output the elements in specific starting position in linux bash shell. 1e.g: starting at second element 2 arrayNames=( btc eos eth usdt ltc) 3 echo ${arrayNames[@]:1} 1e.g: starting at fourth element 2 …
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Array - Remove elements from a linux shell array In this article we can learn how to delete/remove elements/indexes from an linux bash shell array. The following way can remove an array element completely: 1 arr=(eth eos btc usd etc) 2 delete=2 3 arr=( "${arr[@]:0:$delete}" "${arr[@]:$(($delete+1))}" ) 4 echo …
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Array - Replace elements or replace matched words in linux shell array In this article we can learn how to replace elements,words,characters in linux bash shell arrays. usage: echo ${array[@]//substring/replacedstring} example1) Remove 'ltc' then replace 'bch': 1e.g: 2 arrayNames=( btc eos eth usdt ltc) 3 echo …
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Array - Show value of a specific element in linux shell array In this article we can learn how to output the specific array element in linux bash shell for bash scripting. Prints the third element: 1e.g: 2 arrayNames=( btc eos eth usdt ) 3 echo ${arrayNames[2]} HelpfulLinks: …
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Array - Get last element of an array in linux shell In this article we learn about how to get last element of an array in linux shell in linux terminal. We can use negative index: 1 arr=( usdt btc eos ) 2 echo "${arr[-1]}" 1 arr=( usdt btc eos ) 2 echo "${arr[-2]}" Helpful links: …
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Array - Get Number of elements in a array in linux terminal In this article we can learn how to Display elements count in a array in linux terminal shell. 1 arrayNames=( btc eos eth usdt ltc) 2 echo ${#arrayNames[@]} OR: 1 arrayNames=( btc eos eth usdt ltc bch) 2 echo ${#arrayNames[*]} Helpful links: …
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Array - Display elements in a range in linux shell In this article we can learn how to display elements in a specific range in linux terminal shell. Index 2 to 4: 1 arrayNames=( btc eos eth usdt ltc) 2 echo ${arrayNames[@]:2:4} Index 1 to 3: 1 arrayNames=( btc eos eth usdt ltc) 2 echo ${arrayNames[@]:1:3} Helpful …
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Array - Display length of the specific element in linux shell In this article we can learn how to display character count in a array element in linux bash shell and Display character count in a array element. Character count in 1st element: 1 arrayNames=( btc eos eth usdt ltc) 2 echo ${#arrayNames[1]} Character count …
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