Search string

Find files with particular string in file name

• find / -name "*.err"
  / - starting from / to all sub directories.
• Specify file type with find type = d (directory) , f (file)
• Find SUID files
  find / -perm /u=s
• To find all the files which are modified more than 50 days back and less than 100 days.
  # find / -mtime +50 –mtime -100
•  To find all the files which are changed in last 1 hour.
  # find / -cmin -60
• To find all the files which are modified in last 1 hour.
  # find / -mmin -60
• To find all the files which are accessed in last 1 hour.# find / -amin -60

Find String inside files and print file name

• grep -rnw '/path/to/somewhere/' -e 'pattern'
  /path/to/somewhere/ - Starting directory
  -r or -R is recursive,
  -n is line number, and
  -w stands for match the whole word.
  -l (lower-case L) can be added to just give the file name of matching files.
   
• ack 'text-to-find-here'

 
Redirect errors to Stdout

• 2&>1
• Now you can grep out the errors
  find / -name "*.err" 2&>1 | grep -v denied