Bash script executes but 'until' command not found. 1. Bash script cannot execute command. 1. Trying to ...

2017年7月25日 · Furthermore, when you use bash -c, behavior is different than if you run an executable shell script, because in the latter case the argument with index 0 is the shell command used to invoke it. As such, I think the way to fix this answer is to change it to execute scripts as files instead of using bash -c, since that's how the asker was doing it.

2023年11月28日 · write a bash script, make it executable chmod +x script.sh and then just sudo -u username script.sh – 55651909-089b-4e04-9408-47c5bf Commented Jun 11, 2014 at 15:05

Bash uses the value of the variable formed from the rest of parameter as the name of the variable; this variable is then expanded and that value is used in the rest of the substitution, rather than the value of parameter itself.

2020年4月30日 · Now I have to insert these commands in a bash script to make AWS CodeDeploy to deploy it on a Ubuntu 18.04 server. My bash script named after_install.sh looks like this... #!/usr/bin/env bash set -e source .venv/bin/activate ## DO SOME STUFF ## deactivate For local testing, I made the script executable and ran the script using bash after ...

2015年4月7日 · Code in '()' is run inside a separate, child process of bash that is discarded after execution. This child process is often referred to as a sub-shell and can be thought of as a new, child-like scope.

2020年3月19日 · [(like echo) is a builtin in Bash, but this only means it can be run without spawning an additional process, it still behaves like a command. There is probably a standalone [ executable in your system (e.g. /bin/[ ); try type -a [ in Bash to find out.

2017年1月30日 · Bash script: Generate sha256sum hash and save its output with only filename, excluding path 1 Curly braces in a bash variable expands correctly, but the rsync isn't properly executing

Quick answer: source is BASH SHELL BUILTIN command. See man bash (search for "source filename [arguments]" to find it). It doesn't work in question probably because you are using the SH shell (something besides BASH anyway) as your login shell, or inside your script. Use BASH if you want the source command. –

2015年9月27日 · In bash these are implemented via temp files, usually in the form /tmp/sh-thd.<random string>, while in dash they are implemented as anonymous pipes. This can be observed via tracing system calls with strace command. Replace bash with sh to see how /bin/sh performs this redirection. $ strace -e open,dup2,pipe,write -f bash -c 'cat <<EOF > test ...