How do I use grep to search the current directory for all files having the a string hello yet display only h and cc files

Question

How do I use grep to search the current directory for any and all files containing the string  hello  and display only  h and  cc files

User · Answer

grep -l hello       h cc    You might want to shopt -s nullglob to avoid error messages if there are no  h or no  cc files

User · Answer

You can pass in wildcards in instead of specifying file names or using stdin   grep hello   h   cc

User · Answer

find   -name    cc -print0 -or -name    h -print0   xargs -0 grep  hello    Check the manual pages for find and xargs for details

User · Answer

grep -r --include    cc h   hello      This reads  search recursively  in all sub directories also  for all  cc OR  h files that contain  hello  at this    current  directory   From another stackoverflow question

User · Answer

If I read your question carefully  you ask to  grep to search the current directory for any and all files containing the string  hello  and display only  h and  cc files    So to meet your precise requirements here is my submission   This displays the file names   grep -lR hello     egrep   cc h         and this display the file names and contents   grep hello  grep -lR hello     egrep   cc h

User · Answer

The simplest way   grep -Ril  Your text

User · Answer

If you need a recursive search  you have a variety of options   You should consider ack   Failing that  if you have GNU find and xargs   find   -name    cc  -print0 -o -name    h  -print0   xargs -0 grep hello  dev null   The use of  dev null ensures you get file names printed  the -print0 and -0 deals with file names containing spaces  newlines  etc    If you don t have obstreperous names  with spaces etc   you can use   find   -name      ch   -print   xargs grep hello  dev null   This might pick up a few names you didn t intend  because the pattern match is fuzzier  but simpler   but otherwise works   And it works with non-GNU versions of find and xargs

User · Answer

To search in current directory recursively   grep -r  myString

[linux] How do I use grep to search the current directory for all files having the a string "hello" yet display only .h and .cc files?

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