grep -Hn -e “ int” *.c* *.h
searches for the string “int” files ending in .c* or .h in the the current directory directory
Returns:
! P8.CPP:52: cerr << “cannot allocate int *p1” << endl ;
! P8.CPP:59: } //format => int *p = new int[100];
! P9.CPP:9:inline int sumup( int x, int y)
! P9.CPP:17: int i1 = 10, i2 = 20, sum = 0;
! functions.h:3:int doTotal(int x1, int x2)
! functions.h:12:float doAverage(int x1, int x2)
! functions.h:19:int doDifference(int x1, int x2)
In case you want to search through some text files in a series of
directories replacing one set of text for another in each of the files,
try this shell script.
#!/bin/sh
for file in grep -liR "someword" ./\*;
do
sed ‘s/someword/someother_word/g’ $file > tmp/\(&& mv tmp/\) $file
done