====== Ubuntu - Bash - Scripts - tgrep ======

**tgrep** searches for character strings in each file, in a file tree.

----

===== Usage =====

<code bash>
tgrep [-c|-h] string [file ...]
</code>

----

===== Code =====

<code bash>
#!/bin/bash
#
# @(#) tgrep v1.0  Search for a string in a tree.

OPT=""

for ARG in $@
do
  if [ "`echo $ARG|cut -c1`" = "-" ]
  then case $ARG in
    -c)  OPT="-name \"*.c\""
         shift;;
    -h)  OPT="-name \"*.h\""
         shift;;
    *)   echo "$O: incorrect argument"             >&2
         echo "usage: $O [-c|-h] string [file ...] >&2
         exit 1;;
  esac
  fi
done

case $# in
  0)  echo "$O: argument error"                 >&2
      echo "usage: $O [-c|-h] string [dir ...]" >&2
      exit 2
      ;;
  1)  while read FILE
      do
        grep -y "$1" $FILE /dev/nul
      done
      ;;
  *)  STRING=$1; shift
      eval find "$@" -type f $OPT -print | sort | while read FILE
      do
        grep -y "$STRING" $FILE /dev/null
      done
      ;;
esac
</code>

----

===== Example Usage =====

<code bash>
tgrep "profanity" /
</code>

<code bash>
tgrep unix $HOME
</code>

<code bash>
tgrep -c "^sleep()$" $HOME/src
</code>

<code bash>
find /usr/src -name "*.c" -print | tgrep "ioctl"
</code>

<code bash>
tgrep "| more" `find . -type f -print`
</code>

<code bash>
tgrep trap /bin /usr/bin /etc
</code>



<code bash>
grep "$1" `find "$2" -print`
</code>

and

<code bash>
find "$2" -print | while read F
do
  grep "$1" $F
done
</code>