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Shell Script - Make directory if it doesn't exist

shell directory mkdir

Writing my own shell... stuck on pipes?

c++ unix shell pipe

chmod: How to recursively add execute permissions only to files which already have execute permission [closed]

linux unix shell chmod

Unix script appends ^M at end of each line

bash shell unix

Run a script only at shutdown (not log off or restart) on Mac OS X

How can I delete all lines before a specific string from a number of files

bash shell sed

How to detect if Node's process.stdout is being piped?

node.js shell pipe tty

Specifying the default database for psql to connect to?

How to find all files which are basically soft or hard links of other directories or files on linux?

Handling exit code returned by python in shell script

Convert between byte count and "human-readable" string

shell

what are shell built-in commands in linux?

linux unix shell

How to undo "set -x" in unix shell?

shell unix

Execute a shell script in release phase on Heroku

shell heroku

Unix find command, what are the {} and \; for?

shell unix find

How to check if a file contains only zeros in a Linux shell?

linux file shell

Prompt user to select a directory with a bash script and read result

bash macos shell

Echo to both stdout and stderr

linux shell

nohup VERBOSE=1 perl script.pl

shell nohup

Delete lines from file with SED or AWK

regex shell unix sed awk