Mastering Shell Programming: Part III Overview
Explore Chapter 10 of the Shell Programming Part III readings, covering topics such as configuration files, automation scripts, and large projects. Dive into examples and reading assignments to enhance your shell scripting skills.
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Shell Programming: Part III Readings: Chapter 10
Example: /etc/profile See examples/shell/etc_profile if [ "$BASH" ] && [ "$BASH" != "/bin/sh" ]; then # The file bash.bashrc already sets the default PS1. # PS1='\h:\w\$ ' if [ -f /etc/bash.bashrc ]; then . /etc/bash.bashrc fi else if [ "`id -u`" -eq 0 ]; then PS1='# ' else PS1='$ ' fi fi fi
/etc/profile # The default umask is now handled by pam_umask. # See pam_umask(8) and /etc/login.defs. if [ -d /etc/profile.d ]; then for i in /etc/profile.d/*.sh; do if [ -r $i ]; then . $i fi done unset i fi
Example: Automate Some Tasks See examples/shell/parse_all.sh (and parse_all_data.txt) for ((j=1; j <= $limit; ++j)); do name="test${i}_${j}" fname="$name.tar" echo -n "$fname:" cd $dir tar xvf $fname > /dev/null cd $odir #echo $(pwd) mypeer=$(ls $dir/$name/myPeers_*) path=$(ls $dir/$name/dataRequestPath_*) response=$(ls $dir/$name/respondedRequest_*) #echo $mypeer #echo $path #echo $response perl traceback.v2.pl $mypeer $response $path rm -rf $dir/$name done done #!/bin/bash # for 1 to 9, we have 10 tests dir="data/FreenetExperimentsResult1" odir=$(pwd) for ((i=1; i <= 10; ++i)); do if (($i == 10)); then limit=6 else limit=10 fi
Example Many large projects use shell scripts Update program of the Freenet project See examples/shell/update.sh Ardupilot https://github.com/ArduPilot/ardupilot/tree/master/Tools/s cripts
Reading Assignment Appendix A (regular expressions)
