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Editorial Team
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Asked: 2026-05-27T19:37:06+00:00

I am trying to get a substring out of certain string. like below: /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc

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I am trying to get a substring out of certain string. like below:

/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc -I. -I./ --sysroot=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -DHAVE_AV_CONFIG_H -arch armv7 --sysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk -mcpu=cortex-a8 -fPIC -g -MMD -MF libavcodec/arm/ac3dsp_armv6.d -MT - -c -o - libavcodec/arm/ac3dsp_armv6.S -E

I want to get string ac3dsp_armv6.S out, how to do it using Perl?

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1 Answer

  1. Editorial Team
      my $string = '/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc -I. -I./ --sysroot=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -DHAVE_AV_CONFIG_H -arch armv7 --sysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk -mcpu=cortex-a8 -fPIC -g -MMD -MF libavcodec/arm/ac3dsp_armv6.d -MT - -c -o - libavcodec/arm/ac3dsp_armv6.S -E';
  my @r = split(/ / ,( split /\//, $string )[-1]);
  print $r[0];
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