📄 compress_news
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#!/bin/sh# compress_news# compresses news articles under /var/spool/news older than 6 daysUSER=${USER-$LOGNAME}if test -z "$USER"; then echo No \$USER set >&2 exit 1elif test "$USER" != news; then echo Must be news >&2 exit 1else renice 19 $$ # very nice days=+6 # only compress older than 6 days size=+1k # pointless to compress files smaller than block size parallel=4 # run several gzips at once cd /var/spool/news date df . zfind . -type f -size $size -name '*[0-9]' -ctime $days -print | \ xargs -n 999 -P $parallel gzip -q df . datefi
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