The everlastingly useful grep command can change its character with the flip of a switch to help you find things. The grep command – likely one of the first ten commands that every Unix user comes to ...

LinuxやFreeBSDでよく利用されるコマンドのひとつにgrep(1)がある。ファイルから特定のキーワードを含んだ行を取り出したりコマンド出力から特定のキーワードを含んだ行を取り出すために利用されるコマンドで、正規表現と組み合わせて利用されることが多い。

As a relatively isolated junior sysadmin, I remember seeing answers on Experts Exchange and later Stack Exchange that baffled me. Authors and commenters might chain 10 commands together with pipes and ...

The simplest grep command looks like the one shown below. This “find string in file” command will show all the lines in the file that contain the string, even when that string is only part of a longer ...

Carrying over from yesterday’s examination of the Ubuntu command line, today’s installment of 30 Days With Ubuntu Linux is dedicated to ‘man’ and ‘grep’. These commands wield significant power, and ...

There are certain Linux commands I consider essential. They range from networking, troubleshooting, and file viewing. They're also easy enough for new users to learn. Even though I've been using Linux ...

Using Linux, especially as a server, often means dealing with new errors and resolving them. Most of them are easy to fix with just a web search. But some errors may require that you do some digging.