Dependencies

Table of Contents

• Bash 4
• grep -P
• coreutils
• awk
• sed

---

Bash ↑

Version >= 4 (bash4, bashchanges)

Features used:

• declare -A associative arrays
• ;;& case terminator
• [[ ]] double squared brackets conditionals
• == double equal test operators

Features avoided:

• &>> (equiv. to >>FILE 2>&1)

  in order to make the script parseable with older versions of Bash.

Mac OS X comes with Bash 3.2 by default. A newer version needs to be installed there. See README: Mac OS X

grep ↑

With support for PCRE (-P / --perl-regexp argument).

Dependency problems: [INC01]

Therefore using GNU grep is strongly recommended.

It may also be possible to substitute this requirement by using awk.

coreutils ↑

Commands used:

• cat
• cut
• date [INC02] [INC03]
• dirname
• env
• head
• readlink
• touch
• tr
• uniq
• wc

awk ↑

Old compatible awk syntax is used. [Needs to be verfied]

But using GNU awk (gawk) is recommended.

sed ↑

No special version needed. [Needs to be verfied]