bash search, find, replace, sed, awk, grep

find

find files with name containing foo find -type f -name '*.foo'

output with no line break find -type f -name '*.foo' -print0

find not recusively, maximum depth

find -type f -name 'foo' -maxdepth 1

grep

look for foo

• -r recursively where /path/
• -n output filenames with line number

grep -nr -e 'foo' /path/

• -l output file names where foo is found -Z output filenames with no line break (like -pint0)

grep -rlZ 'foo' /path/

• --include \*.bar search for files wich name contains *.bar

sed

replace foo with bar on file

sed -i 's/foo/bar/g file

same but keep and rename original file with .bak

sed -i.bak 's/foo/bar/g file

concatenate

• find foo recursively in /path/ and replace it by bar

grep -rlZ 'foo' /paht/ | xargs -0 sed -i 's/foo/bar/g'