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Asked: 2016-02-26 02:53:31 +0800 CST

Execute command multiple times

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I don't have much knowledge of shell scripting. I have a command which is used multiple times but value is modifying.

Here is my script:

#!/bin/bash

tab=" --tab-with-profile=Default"
options=(--tab --title=Terminal)

cmd[1]="ping 192.168.9.10"
title[1]="10"

cmd[2]="ping 192.168.9.20"
title[2]="20"

cmd[3]="ping 192.168.9.30"
title[3]="30"

cmd[4]="ping 192.168.9.23"
title[4]="23"

cmd[5]="ping 192.168.9.26"
title[5]="26"

cmd[6]="ping 192.168.9.40"
title[6]="40"

cmd[7]="ping 192.168.9.41"
title[7]="41"

cmd[8]="ping 192.168.9.42"
title[8]="42"

cmd[9]="ping 192.168.0.43"
title[9]="43"

cmd[10]="ping 192.168.9.50"
title[10]="50"

cmd[11]="ping 192.168.9.11"
title[11]="11"

cmd[12]="ping 192.168.9.12"
title[12]="12"

for i in 1 2 3 4 5 6 7 8 9 10 11 12; do
  options+=($tab --title="${title[i]}"  -e "bash -c \"${cmd[i]} ; bash\"" )          
done

gnome-terminal "${options[@]}"


exit 0

I don't want to write cmd[i] and title[i]for multiple times. I want to write one single command that execute it multiple times.I don't know how to use for or while loop and execute a single command for different process rather multiple times.

bash

1 Answers

  1. Best Answer

    You could simplify your code a bit:

    #!/bin/bash

tab=" --tab-with-profile=Default"
options=(--tab --title=Terminal)

for i in 9.10 9.20 9.30 9.23 9.26 9.40 9.41 9.42 0.43 9.50 9.11 9.12; do
  options+=($tab --title=$i -e "bash -c 'ping 192.168.$i; bash'" )          
done

gnome-terminal "${options[@]}"

    This will set the titles to be 9.10, 9.20, etc. If you just want the part after ., you could use --title=${i##*.} instead of just --title=$i.

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