GREP ( uma ocorrência só ) [RESOLVIDO]

textmode escreveu:
...$ grep -m1 -e PATTERN FILE
.

Mauriciodez escreveu:



Massa ... mas me diz uma coisa ... não encontrei referencia para -m nos parametros do GREP .. vc poderia exemplificar para mim ?? e o que seria PATTERN FILE ?

-m NUM, --max-count=NUM
Stop reading a file after NUM matching lines. If the input is
standard input from a regular file, and NUM matching lines are
output, grep ensures that the standard input is positioned to just
after the last matching line before exiting, regardless of the
presence of trailing context lines. This enables a calling process
to resume a search. When grep stops after NUM matching lines, it
outputs any trailing context lines. When the -c or --count option is
also used, grep does not output a count greater than NUM.
When the -v or --invert-match option is also used, grep stops after
outputting NUM non-matching lines.

grep [OPTIONS] PATTERN [FILE...]

...

${exec cat /proc/cpuinfo | grep "model name" | cut -c25-34  | uniq} 

${exec cat /proc/cpuinfo | grep -m1 "model name" | cut -c25-34 } 

Mauriciodez escreveu:



Achei o parametro aqui ( não tinha visto ele antes .. kkkkkkkk )

${exec cat /proc/cpuinfo | grep "model name" | cut -c25-34  | uniq} 

nesse caso aí de cima então o comando ficaria assim ?

${exec cat /proc/cpuinfo | grep -m1 "model name" | cut -c25-34 } 

re(TM) i5-

grep -m1 "model name" /proc/cpuinfo | cut -c25-34 

...