Filtering an array is tricky if you consider possibility of elements containing spaces (not to mention even “weirder” characters). In particular answers given so far (referring to various forms of ${x[@]//pref*/}) will fail with such arrays. I have investigated this issue somewhat and found a solution however it is not a nice one-liner. But at … Read more
Try: nonascii() { LANG=C grep –color=always ‘[^ -~]\+’; } Which can be used like: printf ‘ŨTF8\n’ | nonascii Within [] ^ means “not”. So [^ -~] means characters not between space and ~. So excluding control chars, this matches non ASCII characters, and is a more portable though slightly less accurate version of [^\x00-\x7f] below. … Read more
You need to add a –exclude all and it has to come after the –include rsync -zvr –include=”*.sh” –exclude=”*” $from/* root@$host:/home/tmp/
Use tee to direct it straight to screen instead of stdout $ var=$(echo hi | tee /dev/tty) hi $ echo $var hi
$? is a variable holding the return value of the last command you ran. Example C program (example.c): int main() { return 1; } Example Bash: gcc -o example example.c ./example echo $? # prints 1
Update Oct. 2018, as commented below by PHPirate: λ git –version git version 2.19.1.windows.1 λ gpg –version gpg (GnuPG) 2.2.9-unknown libgcrypt 1.8.3 Copyright (C) 2018 Free Software Foundation, Inc. No trace of that update in git-for-windows/git/releases Original answer (2017): By default, Git for Windows includes a gpg1, not gpg2 vonc@bvonc MINGW64 ~/.ssh $ gpg –version … Read more
Use printf (1): x=’a real \good %* load of c$rap’ x=$(printf ‘%q’ “$x”) echo $x will return a\ real\ \\good\ %\*\ load\ of\ c\$rap
Awk is the tool that the guys who invented grep, shell, etc. invented to do general text manipulation jobs like this so not sure why you’d want to try to avoid it. In case brevity is what you’re looking for, here’s the GNU awk one-liner to do just what you asked for: awk ‘NR==FNR{a[$0];next} {for(s … Read more
Count the number of lines output and store it in a variable, then test it: lines=$(find … | wc -l) if [ $lines -eq 0 ]; then … fi