radare2/doc/iocache

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io cache and write changes
[0x000018a0]> wc?
Usage: wc[ir*?]
wc list all write changes
wc* "" in radare commands
wcr reset all write changes in cache
wci commit write cache
NOTE: Needs io.cache=true
[0x000018a0]> e io.cache=true
[0x000018a0]> wx 9090
[0x000018a0]> wc
addr=0x000018a0 size=2
[0x000018a0]> wc*
wx 9090 @ 0x000018a0
[0x000018a0]> wci
r_io_write: cannot write on fd 3
[0x000018a0]> wcr
[0x000018a0]> wc
[0x000018a0]>