grep, zgrep, less and zless regexp examples

Grep all files with mask:

grep "regex to find" /var/log/lb-*.net/nginx/error.log

1	grep "regex to find" /var/log/lb-*.net/nginx/error.log

Grep all zipped files with mask:

zgrep "regex to find"  /var/remote-log/nodejs-1*.net/node/error.log.*

1	zgrep "regex to find" /var/remote-log/nodejs-1.net/node/error.log.

Less all files with mask:

less /var/log/lb-*.net/nginx/error.log

1	less /var/log/lb-*.net/nginx/error.log

Grep all zipped files with mask:

zless  /var/remote-log/nodejs-1*.net/node/error.log.*

1	zless /var/remote-log/nodejs-1.net/node/error.log.

Tail all files with mask:

tail -f /var/log/lb-*.net/nginx/error.log

1	tail -f /var/log/lb-*.net/nginx/error.log

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