7 дек. 2014 г. · The correct operator for inequality is !=. See below: url=/heads/paths/lol.txt if [[ $url != *.txt ]] ; then echo "does not contain txt"; else echo "contains ...

16 авг. 2015 г. · You can use the grep option "-L / --files-without-match", to check if file does not contain a string: if [[ $(grep -L "$user2" /etc/passwd) ]]; then echo "User ...

16 янв. 2017 г. · If that command doesn't find a match, that means the string is not found, thus using its exit status , we pass it on to echo via || operator.

31 мар. 2017 г. · One way to do it: sed '/domino/! s/platform1-.*:platform/platform1-06:hybrisb/g' file /domino/! selects lines that don't match domino.

5 авг. 2015 г. · I want to search all files inside a directory and its subdirectories for lines containing a certain string, but I want to exclude those results that contain a ...

14 дек. 2011 г. · Your find should work if you change -v -l (files that have any line not matching) to -L (files with no lines matching), but you could also use grep 's ...

14 мар. 2013 г. · I tried to check if the PHONE_TYPE variable contains one of three valid values. if [ "$PHONE_TYPE" != "NORTEL" ] || [ "$PHONE_TYPE" != "NEC" ] || [ "$PHONE_TYPE

28 июл. 2014 г. · The -z test is explicitly for: the length of string is zero. That is, a string containing only spaces should not be true under -z, because it has a non-zero ...

20 июн. 2022 г. · If the current line does not ( ! ) match the \. regex (a literal dot), s ubstitute the first match of the $ regex ( $ matches at the end of the line) with XX.

21 сент. 2021 г. · Another good way of testing for substring is to use the regex operator: if [[ "$1" =~ .*"abc".* ]]; then echo "contains" else echo "doesn't contain" fi