Various R tools, for instance for finding git repositories and doing backups. Most functions in esutils are at some point moved to more-appropriate specialized packages.
The latest released version is available from http://enricoschumann.net. In an R session, just type:
install.packages('esutils', repos = c('http://enricoschumann.net/R', getOption('repos')))
Function 'ss2csv' uses 'ssconvert', which is part of Gnumeric.
Function 'pdf2txt' uses 'pdftotext', which is part of Xpdf.