The Developer Toolbar GCLI and Shift+F2 shortcut were removed in Firefox version 60. To take a screenshot in 60 or newer: press Ctrl+Shift+K to open the developer console (⌥ Option+⌘ Command+K on macOS) type :screenshot or :screenshot –fullpage Find out more regarding screenshots and other features For Firefox versions < 60: Press Shift+F2 or go … Read more
Not only the recursion depth of find can be controlled by the -maxdepth parameter, the depth can also be limited from “top” using the corresponding -mindepth parameter. So what one actually needs is: find . -mindepth 1 -type d
ssh -o ConnectTimeout=10 <hostName> Where 10 is time in seconds. This Timeout applies only to the creation of the connection.
You should use the = operator for string comparison: Sourcesystem=”ABC” if [ “$Sourcesystem” = “XYZ” ]; then echo “Sourcesystem Matched” else echo “Sourcesystem is NOT Matched $Sourcesystem” fi; man test says that you use -z to match for empty strings.
This works for me (improved thanks to the commenters): trap “trap – SIGTERM && kill — -$$” SIGINT SIGTERM EXIT kill — -$$ sends a SIGTERM to the whole process group, thus killing also descendants. Specifying signal EXIT is useful when using set -e (more details here).
You’re missing a required space between the bracket and -e: #!/bin/bash if [ -e x.txt ] then echo “ok” else echo “nok” fi
You can use shuf: shuf -n 1 $FILE There is also a utility called rl. In Debian it’s in the randomize-lines package that does exactly what you want, though not available in all distros. On its home page it actually recommends the use of shuf instead (which didn’t exist when it was created, I believe). … Read more
It’s evident that you’ve managed to mess up your PATH variable. (Your current PATH doesn’t contain any location where common utilities are located.) Try: PATH=/bin:/usr/bin:/usr/local/bin:${PATH} export PATH Alternatively, for “resetting” zsh, specify the complete path to the shell: exec /bin/zsh or exec /usr/bin/zsh
This is the exit status of the last executed command. For example the command true always returns a status of 0 and false always returns a status of 1: true echo $? # echoes 0 false echo $? # echoes 1 From the manual: (acessible by calling man bash in your shell) ? Expands to … Read more
The exec built-in command mirrors functions in the kernel, there are a family of them based on execve, which is usually called from C. exec replaces the current program in the current process, without forking a new process. It is not something you would use in every script you write, but it comes in handy … Read more