How to check if there is a word in a file

I think you do not just want the word "team", but that you are in the middle of scripts and spaces as an indicator. In that case, a regular expression would be: ^ [-] + [[: space:]] computer [[: space:]] [-] + $

With thirst

In the sed command, it would be in the form

$ sed -nr '/^[-]+[[:space:]]equipo[[:space:]][-]+$/p' archivo
---------------------- equipo -----------------------
---------------------- equipo -----------------------

Where the parameter -n suppresses the output of the file before finding the pattern, and the parameter -r enables the regular expressions.

Although you can also do the same with other options like egrep , grep or awk with something of the style.

egrep and grep

$ egrep '^[-]+[[:space:]]equipo[[:space:]][-]+$' archivo 
---------------------- equipo -----------------------
---------------------- equipo -----------------------

O

$ grep -E '^[-]+[[:space:]]equipo[[:space:]][-]+$' archivo 
---------------------- equipo -----------------------
---------------------- equipo -----------------------

With awk

$ awk '/^[-]+[[:space:]]equipo[[:space:]][-]+$/{print $0}' archivo
---------------------- equipo -----------------------
---------------------- equipo -----------------------

The explanation of that regular expression is that "^ [-] +" expects the pattern to start (^) with a repetition of more than one character "-" ([-] +), then with a space ([ [: space:]]) and then continue the word "team" and then repeat it in the same way ([[: space:]] and [-] +) but end with that pattern ($)

Now, if you just want the word "team" to be there, no matter what you have before or after, you can remove the meta characters and leave only the commands with the word team.

$ sed '/equipo/p' archivo
$ grep 'equipo' archivo
$ awk '/equipo/{print $0}' archivo