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Changed descriptions, added grep, fgrep examples

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Gregory S. Kielian 2014-10-04 14:50:00 -07:00
parent d22d591e3e
commit d83a0f0385
1 changed files with 8 additions and 4 deletions
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12
bash.html.markdown
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@ -200,8 +200,12 @@ sort file.txt
uniq -d file.txt
# prints only the first column before the ',' character
cut -d ',' -f 1 file.txt
# replaces every occurrence of 'apples' with 'oranges' in file.txt
sed -i 's/apples/oranges/g' file.txt
# prints the number of lines containing the string "foo" in file.txt
grep -c "foo" file.txt
# replaces every occurrence of 'okay' with 'great' in file.txt, (regex compatible)
sed -i 's/okay/great/g' file.txt
# print to stdout all lines of file.txt which match some regex, the example prints lines which beginning with "foo" and end in "bar"
grep "^foo.*bar$" file.txt
# pass the option "-c" to instead print the number of lines matching the regex
grep -c "^foo.*bar$" file.txt
# if you literally want to search for the string, and not the regex, use fgrep (or grep -F)
fgrep "^foo.*bar$" file.txt
```