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If patterns.txt contains one pattern per line, you can do something like this:

awk 'NR==FNR{a[$0];next}{for(i in a)if($0!~i)next}1' patterns.txt -

To search for fixed strings instead of regular expressions, use this variant:

awk 'NR==FNR{a[$0];next}{for(i in a)if(!index($0,i))next}1' patterns.txt -

To print all instead of no lines of the input in the case that patterns.txt is empty, replace NR==FNR with FILENAME==ARGV[1] or with ARGIND==1 in gawk.

If patterns contains one pattern per line, you can do something like this:

awk 'NR==FNR{a[$0];next}{for(i in a)if($0!~i)next}1' patterns -

Or this matches substrings instead of regular expressions:

awk 'NR==FNR{a[$0];next}{for(i in a)if(!index($0,i))next}1' patterns -

To print all instead of no lines of the input in the case that patterns is empty, replace NR==FNR with FILENAME==ARGV[1], or with ARGIND==1 in gawk.

These functions print the lines of STDIN which contain each string specified as an argument as a substring. ga stands for grep all and gai ignores case.

ga(){ awk 'FILENAME==ARGV[1]{a[$0];next}{for(i in a)if(!index($0,i))next}1' <(printf %s\\n "$@") -; }
gai(){ awk 'FILENAME==ARGV[1]{a[tolower($0)];next}{for(i in a)if(!index(tolower($0),i))next}1' <(printf %s\\n "$@") -; }

If patterns.txt contains one pattern per line, you can do something like this:

awk 'NR==FNR{a[$0];next}{for(i in a)if($0!~i)next}1' patterns.txt -

To search for fixed strings instead of regular expressions, replace match with index.

To print all instead of no lines of the input in the case that patterns.txt is empty, replace NR==FNR with FILENAME==ARGV[1] or with ARGIND==1 in gawk.

If patterns.txt contains one pattern per line, you can do something like this:

awk 'NR==FNR{a[$0];next}{for(i in a)if($0!~i)next}1' patterns.txt -

To search for fixed strings instead of regular expressions, use this variant:

awk 'NR==FNR{a[$0];next}{for(i in a)if(!index($0,i))next}1' patterns.txt -

To print all instead of no lines of the input in the case that patterns.txt is empty, replace NR==FNR with FILENAME==ARGV[1] or with ARGIND==1 in gawk.

If patterns.txt contains one pattern per line, you can do something like this:

awk 'NR==FNR{a[$0];next}{for(i in a)if(!match($0,i))next}1' patterns.txt -

To search for fixed strings instead of regular expressions, replace match with index.

To print all instead of no lines of the input in the case that patterns.txt is empty, replace NR==FNR with FILENAME==ARGV[1] or with ARGIND==1 in gawk.

If patterns.txt contains one pattern per line, you can do something like this:

awk 'NR==FNR{a[$0];next}{for(i in a)if($0!~i)next}1' patterns.txt -

To search for fixed strings instead of regular expressions, replace match with index.

To print all instead of no lines of the input in the case that patterns.txt is empty, replace NR==FNR with FILENAME==ARGV[1] or with ARGIND==1 in gawk.