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
You can write a small shell script that launches tmux with the required programs. I have the following in a shell script that I call dev-tmux. A dev environment: #!/bin/sh tmux new-session -d ‘vim’ tmux split-window -v ‘ipython’ tmux split-window -h tmux new-window ‘mutt’ tmux -2 attach-session -d So everytime I want to launch my … Read more
The code should read the contents of the two files into lists of lines, then iterate over them. It ends up like this: # Set up various other variables here ($user, $password) # Get the list of hosts, one per line ##### set f [open “host.txt”] set hosts [split [read $f] “\n”] close $f # … Read more
Using {} in variable names helps get rid of ambiguity while performing variable expansion. Consider two variables var and varname. Lets see you wanted to append the string name to the variable var. You can’t say $varname because that would result in the expansion of the variable varname. However, saying ${var}name would help you achieve … Read more
You can pipe in whatever text you’d like on stdin and it will be just the same as having the user type it themselves. For example to simulating typing “Y” just use: echo “Y” | myapp or using a shell variable: echo $ANSWER | myapp There is also a unix command called “yes” that outputs … Read more
Many unix variants only allow a single argument to the program on the shebang line. Sad, but true. If you use #!/usr/bin/env emacs so as not to depend on the location of the emacs executable, you can’t pass an argument at all. Chaining scripts is a possibility on some systems, but that too is not … Read more
theres 2 ways: the older way: (gdb) shell echo set \$x=\”$(uname -m)\” >/tmp/foo.gdb (gdb) source /tmp/foo.gdb newer with python: (gdb) python gdb.execute(“set $y=\”” + os.uname()[4] + “\””)
You don’t specify which shell (there are many), so I am assuming Bourne Shell, that is I think your script starts with: #!/bin/sh Please remember to tag future questions with the shell type, as this will help the community answer your question. You need to define your functions before you call them. Using (): process_install() … Read more
Accrding to: http://www.vias.org/linux-knowhow/bbg_sect_08_02_01.html : -r If this option is given, backslash does not act as an escape character. The backslash is considered to be part of the line. In particular, a backslash-newline pair may not be used as a line continuation. It works on my machine. $ echo ‘\&|’ | while read -r in; do … Read more
For simple input, like two prompts and two corresponding fixed responses, you could also use a “here document”, the syntax of which looks like this: test.sh <<! y pasword ! The << prefixes a pattern, in this case ‘!’. Everything up to a line beginning with that pattern is interpreted as standard input. This approach … Read more