I have the following file names where I am trying to relabel v5.4b
to v5.7
:
v5.4b_lvl-1.e8974326
v5.4b_lvl-1.o8974326
v5.4b_lvl-1.pe8974326
v5.4b_lvl-1.po8974326
v5.4b_lvl-2.1.e8974303
v5.4b_lvl-2.1.o8974303
v5.4b_lvl-2.1.pe8974303
v5.4b_lvl-2.1.po8974303
v5.4b_lvl-2.2.e8974304
v5.4b_lvl-2.2.o8974304
v5.4b_lvl-2.2.pe8974304
v5.4b_lvl-2.2.po8974304
v5.4b_lvl-3.1.e8974305
v5.4b_lvl-3.1.o8974305
v5.4b_lvl-3.1.pe8974305
v5.4b_lvl-3.1.po8974305
v5.4b_lvl-4.1.e8974327
v5.4b_lvl-4.1.o8974327
v5.4b_lvl-4.1.pe8974327
v5.4b_lvl-4.1.po8974327
I can't do mv v5.4b_* v5.7_*
because it thinks v5.7_*
is a directory so I am trying a for-loop
but I can't get it to work
I am trying the recommended answer from this SO post How to set a variable to the output of a command in Bash? but getting a bunch of empty lines.
What am I doing incorrectly? How can I save the output of cut
to SUFFIX
so I can mv $i v5.7_$SUFFIX
?
-bash-4.1$ for i in v5.4b*; do echo $i | SUFFIX=`cut -f2 -d'_'`; echo ${SUFFIX}; done