Bash Tools

Here's my collection of simple *nix command line tools, written for bash.

clean

#!/bin/bash
#
# Removes editor backup files from the current directory i.e. those ending in "~" and
# autosave files beginning and ending in "#"
#

rm *~ \#*\# 2>/dev/null
echo -e "\n\n\n"
ls --color

e (edit)

#!/bin/bash
##!/bin/bash
#
# Launches a text editor, gedit if you have an X display, otherwise
# it falls back to using nano.
#

if [ -z "${DISPLAY}" ]; then
  nano "$@"
else
  gedit "$@" &
fi

lazyredirect

#!/bin/bash
#
# Takes stdin, and redirects is to a file once stdin has been closed
# (i.e. after the process that generates the input is complete)
#
# Usage :
# lazyredirect FILE
#
# Example :
# sort mylist.txt | lazyredirect mylist.txt
#

TMP_FILE="$1-lazyredirect~$$~"

cat > "${TMP_FILE}"
mv -- "${TMP_FILE}" "$1"

mvlower

#!/bin/bash
#
# Renames all of the given files to lower case
# If the lower case name already exists, then a warning is given, and the rename does not happen.
#

for NAME in $*
do
  NEW_NAME=`echo ${NAME} | dd conv=lcase 2>/dev/null`

  if [ "${NAME}" != "${NEW_NAME}" ]; then
 
    if [ -f "${NEW_NAME}" ]; then
      echo '# Not moving "'${NAME}'" to "'${NEW_NAME}'" as "'${NEW_NAME}'" already exists.'
    else
      echo "mv ${NAME} ${NEW_NAME}"
      mv -- "${NAME}" "${NEW_NAME}"
    fi
  fi

done

na (nautilus)

#!/bin/bash
#
# Launches nautilus (gnome's file manager) for the current directory,
# or the one specified as the first parameter of the command.
#
nautilus "${1-.}"

psg ( ps | grep )

#/bin/bash
#
# greps the output of ps
#

ps -aef | grep "$1"