If a command is terminated by the control operator &, the shell executes the command in the background in a sub shell. The shell does not wait for the command to finish, and the return status is 0. Commands separated by a ; are executed sequentially; the shell waits for each ...
#!/usr/bin/env bash # Declare data to be forked a_value=(toto titi tata tutu) msg="" # Spawn child sub-processes for i in {0..3}; do ((fd=50+i)) echo -e "1/ Launching command: $cmd with file descriptor: $fd!" eval "exec $fd< <({ sleep $((i)); echo ${a_value[...
I would like to see how to interrupt the sleep command if a child terminates, so that one would not have to tune WAITALL_DELAY to one's usage. waitall() { # PID... ## Wait for children to exit and indicate whether all exited with 0 status. local errors=0 ...
The shell does not wait for the command to finish, and the return status is 0. Commands separated by a ; are executed sequentially; the shell waits for each command to terminate in turn. The return status is the exit status of the last command executed. AND and OR lists are sequences ...
You need to run several commands,but some take a while and you don’t want to wait for each one to finish before issuing the next command. Solution There are three solutions to this problem, although the first is rather trivial: just keep typing. A Linux or Unix system is advanced enoug...
If a command is terminated by the control operator &, the shell executes the command in the background in a subshell. The shell does not wait for the command to finish, and the return status is 0. Commands separated by a ; are executed sequentially; the shell waits ...
Summary While executing 'gitlab-ctr reconfigure' I get an error "Error executing action run on resource 'bash_hide_env[migrate gitlab-rails database]'". Unfortunately, I...
Moves you from one directory to other. Running this$ cdmoves you to home directory. This command accepts an optional dirname, which moves you to that directory.cd dirnameSwitch to the previous working directorycd -b. mkdirMakes a new directory....
!!thepreviouscommand !strmostrecentcommandlinestartingwith str !?str[?]mostrecentcommandlinecontainingstr !#theentirecommandlinetypedsofar ?old?new?quicksubstitution:repeatlastcommand changingoldtonew Theworddesignatorsare: 0thezero’thword(commandname) ...
Moves you from one directory to other. Running this$ cdmoves you to home directory. This command accepts an optional dirname, which moves you to that directory.cd dirnameSwitch to the previous working directorycd -b. mkdirMakes a new directory....