bash - how to compress the output of cat command -


the title not @ all, here example of result of cat :

/var/oracle/oradata/db11g/system01.dbf /var/oracle/oradata/db11g/sysaux01.dbf /var/oracle/oradata/db11g/undotbs01.dbf /var/oracle/oradata/db11g/users01.dbf /var/oracle/oradata/db11g/example01.dbf /var/oracle/oradata/jabba/jabba01.dbf /var/oracle/oradata/db11g/control01.ctl /var/oracle/flash_recovery_area/db11g/control02.ctl /var/oracle/oradata/db11g/redo03.log /var/oracle/oradata/db11g/redo02.log /var/oracle/oradata/db11g/redo01.log

the cat command gives path files

i need compress files tar.gz

how can it?

as simple workaround, if version of tar not support --files-from option, can use tr produce command line of files.

given:

$ cat files.txt /var/oracle/oradata/db11g/system01.dbf /var/oracle/oradata/db11g/sysaux01.dbf /var/oracle/oradata/db11g/undotbs01.dbf /var/oracle/oradata/db11g/users01.dbf /var/oracle/oradata/db11g/example01.dbf /var/oracle/oradata/jabba/jabba01.dbf /var/oracle/oradata/db11g/control01.ctl /var/oracle/flash_recovery_area/db11g/control02.ctl /var/oracle/oradata/db11g/redo03.log /var/oracle/oradata/db11g/redo02.log /var/oracle/oradata/db11g/redo01.log

you can do:

$ cat files.txt | tr '\n' ' ' /var/oracle/oradata/db11g/system01.dbf /var/oracle/oradata/db11g/sysaux01.dbf /var/oracle/oradata/db11g/undotbs01.dbf /var/oracle/oradata/db11g/users01.dbf /var/oracle/oradata/db11g/example01.dbf /var/oracle/oradata/jabba/jabba01.dbf /var/oracle/oradata/db11g/control01.ctl /var/oracle/flash_recovery_area/db11g/control02.ctl /var/oracle/oradata/db11g/redo03.log /var/oracle/oradata/db11g/redo02.log /var/oracle/oradata/db11g/redo01.log

then use on command line of tar.

most tar implementations (i believe) not choke on \n in list of files, can directly:

$ tar -c $(cat files.txt)

or try:

$ tar -c $(cat files.txt | tr '\n' ' ')

of course if tar supports --files-from, use that.


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