Question

1

Bash script special character and background job bug

rated 0 times [ 1] [ 0] / answers: 1 / hits: 422 / 2 Years ago, sun, january 23, 2022, 12:52:10

gnome-terminal --tab -e "

sh -c '

 gedit'/media/ubuntuman/Onces And for Al/scripts/faceBook' & ;

 sudo cpulimit -e ubuntu-tweak -l 80;'"

This is the piece of code I want to edit. The special character ' (single quote) in of sh -c will conflict with the single quote of gedit, how can I solve it?

I also find that if I run the first job in the background, the terminal doesn't execute the second job of sudo cpulimit bla bla ... Why?

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tresein

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1 Year ago

answered 2 Years ago barted · Accepted Answer

Please try the following command, it should start both jobs:

gnome-terminal --tab -e "

sh -c '

 (gedit /media/ubuntuman/Onces And for Al/scripts/faceBook &) ;

 sudo cpulimit -e ubuntu-tweak -l 80;'"

Parentheses denote a subshell in bash. To quote the man page:

   (list) list is executed in a subshell environment (see  COMMAND  EXECU‐

          TION  ENVIRONMENT below).  Variable assignments and builtin com‐

          mands that affect the  shell's  environment  do  not  remain  in

          effect  after  the  command completes.  The return status is the

          exit status of list.