Introduction to Variables and Parameters 5. External Filters, Programs and Commands 17. System and Administrative Commands Part 5. A Detailed Introduction to I/O and I/O Redirection G. An Introduction to Programmable Completion K. Converting DOS Batch Files to Shell Scripts O. cleanup: A script to clean up logįiles in /var/log 2-2. cleanup: An improved clean-upĪnd generalized version of above scripts. Saving the output of a code block to a file 3-3. Backup of all files changed in last day 4-1. Variable assignment and substitution 4-2. Variable Assignment, plain and fancy 4-4. Compound Condition Tests Using & and || 8-4. Representation of numerical constants 8-5. Inserting a blank line between paragraphs in a text file 10-2. Converting graphic file formats, with filename change 10-4. Alternate ways of extracting and locating substrings 10-7. Using parameter substitution and error messages 10-8. Parameter substitution and "usage" messages 10-9. Pattern matching in parameter substitution 10-11. Using pattern matching to parse arbitrary strings 10-13. Matching patterns at prefix or suffix of string 11-1. Fileinfo: operating on a file listĬontained in a variable 11-4. Operating on a parameterized file list 11-5. Checking all the binaries in a directory for Missing in in aĪ for loop with command substitution 11-8.
Symbolic links in a directory, saved to a file 11-13. while loop with multiple conditions 11-18. Effects of break andĬontinue in a loop 11-22. Breaking out of multiple loop levels 11-23. Using continue N in an actual task 11-25. A script that spawns multiple instances of itself 15-2. Changing the current working directory 15-10. Using eval to selectĬommand-line parameters 15-14. Reversing the positional parameters 15-18. Reassigning the positional parameters 15-19. Using export to pass a variable to anĮmbedded awk script 15-21. Options/arguments passed to a script 15-22. #BILL CIPHER ANIMATED CURSOR PACK CODE#Ī (useless) script that sources itself 15-24.
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