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Compare directories

6 Hits, Last modified: 6 years ago

ach of the directories, generate a digest file: <code bash> find DIR -type f -exec shasum {} + | LC_ALL=C sort -d -k 2 > shasums.txt </code> It's important to use ''LC_ALL=C'' and the opti... After that, you can diff the two shasums.txt: <code bash> diff shasums1.txt shasums2.txt </code> Or you use Meld as graphical diff tool: <code bash> meld

Shell Script Variables

4 Hits, Last modified: 9 years ago

aracter ===== Get the last character of ''$a'': <code bash> ${a: -1} </code> ===== Remove Slash from the End of a Variable ===== Remove a trailing slash from ''$a'': <code bash> a=${a%/} </code> {{tag>scripting bash sysadmin variable}}

Change Encoding with iconv

2 Hits, Last modified: 12 years ago

. ===== Convert All Files in a Directory ===== <code bash> for f in $(find . -type f) do iconv -f is... ${f}_$$_TEMP ${f} \ && mv ${f}_$$_TEMP ${f} done </code> {{tag>sysadmin convert encoding shell cli}}

DynDNS Updates without a Client

2 Hits, Last modified: 12 years ago

cript does the job as good as any other client. <code bash dyndns-update.sh> #! /bin/bash . ${HOME}/.... {LOGIN} "${UPDATE_URL}?hostname=${domain}" done </code> First, the login credentials (the ''$LOGIN'' va